About the authors |
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xix | |
Foreword |
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xxi | |
Preface |
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xxiii | |
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Part I Distributed Energy Resources and Microgrids: Preliminaries |
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1 | (34) |
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1 Distributed energy resources: introduction and classification |
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3 | (12) |
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3 | (1) |
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1.2 Definition and classification |
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4 | (11) |
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1.2.1 Distributed generator |
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5 | (2) |
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1.2.2 Energy storage system |
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7 | (6) |
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1.2.3 Flexible load 10 References |
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13 | (2) |
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2 Microgrids: introduction and research problem descriptions |
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15 | (20) |
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15 | (1) |
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2.2 Microgrid architecture and classification |
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16 | (5) |
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17 | (3) |
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2.2.2 Multi-energy microgrid |
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20 | (1) |
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2.3 Planning of DER units in microgrid |
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21 | (2) |
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23 | (3) |
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26 | (3) |
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29 | (6) |
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32 | (3) |
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Part II Coordinated Planning of DERs in Micogrids: Optimal Sizing and Siting |
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35 | (100) |
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3 Composite sensitivity factor-based method for DG planning |
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37 | (20) |
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37 | (2) |
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39 | (2) |
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41 | (2) |
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3.2.1 Power loss sensitivity factor |
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41 | (1) |
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3.2.2 Voltage sensitivity factor |
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42 | (1) |
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3.2.3 Composite sensitivity factor |
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43 | (1) |
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3.3 Power loss and voltage stability assessment indices |
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43 | (2) |
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3.3.1 Line loss reduction index |
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43 | (1) |
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3.3.2 Voltage collapse proximity indicator reduction index |
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44 | (1) |
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3.4 Composite sensitivity factor-based method |
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45 | (3) |
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3.4.1 Distributed generation and load modelling |
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45 | (1) |
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3.4.2 Composite sensitivity factor-based method |
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46 | (2) |
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48 | (5) |
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3.5.1 Test system description |
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48 | (1) |
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3.5.2 Power loss sensitivity factor analysis |
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49 | (2) |
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3.5.3 Single-stage planning results |
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51 | (1) |
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3.5.4 Multi-stage planning with load growth results |
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51 | (2) |
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53 | (4) |
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53 | (4) |
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4 Probability-weighted robust optimisation method for DG planning |
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57 | (20) |
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57 | (2) |
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59 | (2) |
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4.2 Mathematical formulation |
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61 | (3) |
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4.3 Probability-weighted robust optimisation |
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64 | (5) |
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4.3.1 Probabilistic modelling of uncertainties |
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64 | (1) |
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4.3.2 Probability-weighted uncertainty sets |
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65 | (1) |
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4.3.3 Probability-weighted robust optimisation model |
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66 | (1) |
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67 | (2) |
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69 | (4) |
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4.4.1 Test system description |
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69 | (1) |
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4.4.2 Probability-weighted uncertainty sets |
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70 | (1) |
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4.4.3 Distributed generation planning results |
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71 | (1) |
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4.4.4 Operation results with Monte Carlo simulation |
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72 | (1) |
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73 | (4) |
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74 | (3) |
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5 Multi-stage stochastic programming method for multi-energy DG planning |
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77 | (28) |
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77 | (3) |
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80 | (2) |
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82 | (2) |
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5.2.1 System configuration |
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82 | (1) |
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82 | (1) |
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5.2.3 Multi-energy conversion |
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83 | (1) |
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5.3 Mathematical modelling for DG placement |
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84 | (4) |
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5.3.1 Two-stage DG placement framework |
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84 | (1) |
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5.3.2 Two-stage mathematical modelling |
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84 | (4) |
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88 | (1) |
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5.4.1 Typical seasonal day selection |
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88 | (1) |
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5.4.2 Stochastic optimisation model |
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88 | (1) |
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5.5 Test system set-up and case study |
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89 | (4) |
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89 | (1) |
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90 | (3) |
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5.5.3 Assumptions for case study |
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93 | (1) |
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5.6 Simulation results and discussions |
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93 | (6) |
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5.6.1 Investment-stage simulation results and discussions |
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94 | (1) |
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5.6.2 Operation-stage simulation results and discussions |
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95 | (2) |
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5.6.3 Methods comparison results |
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97 | (2) |
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99 | (6) |
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100 | (2) |
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102 | (3) |
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6 Stochastic planning of heterogeneous energy storage (HES) in residential MEMG |
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105 | (30) |
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105 | (3) |
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108 | (3) |
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6.2 Modelling of the residential MEMG |
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111 | (5) |
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6.2.1 Basic structure of the residential MEMG |
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111 | (1) |
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112 | (1) |
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6.2.3 Thermal storage tank |
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112 | (1) |
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6.2.4 Price-based demand response (PBDR) for the electricity |
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113 | (1) |
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6.2.5 Thermal loads modelling with thermal inertia |
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114 | (2) |
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6.2.6 The demand side management (DSM) for thermal energy |
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116 | (1) |
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6.3 Mathematic modelling for HES deployment |
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116 | (3) |
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6.3.1 Two-stage HES deployment framework |
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116 | (1) |
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6.3.2 Mathematical formulation |
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116 | (3) |
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119 | (2) |
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6.4.1 Typical seasonal day selection approach |
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119 | (1) |
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6.4.2 Two-substage stochastic operation model |
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120 | (1) |
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121 | (8) |
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6.5.1 Set-up of the system |
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121 | (3) |
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6.5.2 Investment-stage simulation results and discussion |
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124 | (1) |
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6.5.3 Operation-stage simulation results and discussions |
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125 | (1) |
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125 | (4) |
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6.6 Conclusion and future work |
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129 | (6) |
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130 | (1) |
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131 | (4) |
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Part III Coordinated Operation of DERs in Microgrids: Energy Management and Voltage Regulation |
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135 | (170) |
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7 Hourly coordination of energy storage and direct load control |
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137 | (24) |
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137 | (2) |
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139 | (2) |
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7.2 Two-stage coordination of ES operation and DLC |
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141 | (2) |
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7.2.1 Principle of multi-stage coordination |
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141 | (1) |
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7.2.2 First stage-hourly energy storage operation |
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142 | (1) |
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7.2.3 Second stage-direct load control |
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142 | (1) |
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7.3 Mathematical formulation |
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143 | (5) |
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7.3.1 Energy storage models |
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143 | (2) |
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7.3.2 Direct load control model |
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145 | (1) |
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7.3.3 Coordination optimisation model |
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146 | (2) |
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7.4 Two-stage robust optimisation method |
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148 | (4) |
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7.4.1 Principle of two-stage robust optimisation |
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148 | (1) |
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7.4.2 Uncertainty set modelling |
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148 | (2) |
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7.4.3 Two-stage robust optimisation model |
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150 | (1) |
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151 | (1) |
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152 | (6) |
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7.5.1 Test system description |
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152 | (1) |
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153 | (3) |
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7.5.3 Comprehensive tests |
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156 | (2) |
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158 | (3) |
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158 | (3) |
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8 Daily coordination of microturbines and demand response |
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161 | (26) |
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161 | (2) |
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163 | (2) |
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8.2 Two-stage coordination of day-ahead demand response and microturbine dispatch |
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165 | (2) |
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8.2.1 First stage-day-ahead PBDR |
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165 | (1) |
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8.2.2 Second stage-hourly microturbine dispatch |
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166 | (1) |
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8.3 Mathematical formulation |
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167 | (3) |
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8.3.1 Price-based demand response model |
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167 | (1) |
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8.3.2 Coordination optimisation model |
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167 | (3) |
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8.4 Two-stage robust optimisation method |
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170 | (4) |
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8.4.1 Uncertainty set modelling |
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170 | (1) |
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8.4.2 Two-stage robust optimisation model |
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171 | (1) |
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172 | (2) |
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174 | (10) |
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8.5.1 Test system description |
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174 | (1) |
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175 | (2) |
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8.5.3 First-stage price-based demand response results |
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177 | (1) |
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8.5.4 Second-stage implementation results |
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178 | (3) |
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8.5.5 Monte Carlo simulation check |
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181 | (3) |
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184 | (3) |
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184 | (3) |
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9 Optimal dispatch of MEMGs |
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187 | (24) |
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187 | (2) |
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189 | (2) |
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9.2 Multi-energy microgrid modelling |
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191 | (2) |
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9.2.1 Combined cooling, heat and power (CCHP) plant |
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191 | (1) |
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192 | (1) |
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9.2.3 Electric boiler (EB) and Electric chiller (EC) |
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193 | (1) |
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193 | (1) |
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9.3 Coordinated optimal dispatch |
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193 | (4) |
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9.3.1 Grid-connected mode |
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193 | (2) |
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195 | (1) |
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9.3.3 Model linearisation |
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196 | (1) |
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197 | (9) |
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197 | (2) |
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199 | (1) |
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9.4.3 Grid-connected mode |
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200 | (4) |
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204 | (2) |
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206 | (5) |
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207 | (4) |
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10 Temporally coordinated dispatch of MEMGs under diverse uncertainties |
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211 | (24) |
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211 | (2) |
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213 | (3) |
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10.1.1 Background and motivation |
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213 | (1) |
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213 | (2) |
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10.1.3 Contribution of this chapter |
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215 | (1) |
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10.2 Multi-energy microgrid modelling |
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216 | (2) |
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10.2.1 Structure of the microgrid |
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216 | (1) |
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10.2.2 Components modelling |
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216 | (2) |
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10.3 Proposed operation method |
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218 | (1) |
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10.3.1 Timescale decomposition |
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218 | (1) |
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10.3.2 Temporally coordinated operation framework |
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218 | (1) |
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10.4 Mathematical formulation |
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219 | (3) |
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10.4.1 Multi-energy microgrid coordination model |
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219 | (2) |
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10.4.2 Model linearisation |
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221 | (1) |
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222 | (2) |
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10.5.1 Uncertainty modelling |
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222 | (1) |
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10.5.2 Stochastic programming model |
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222 | (1) |
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10.5.3 Deterministic equivalence |
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223 | (1) |
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10.5.4 Scenario generation and reduction |
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224 | (1) |
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224 | (8) |
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224 | (2) |
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10.6.2 Day-ahead operation results and discussion |
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226 | (1) |
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10.6.3 Intraday online operation results and discussion |
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227 | (3) |
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10.6.4 Performance check and comparison |
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230 | (2) |
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10.7 Conclusion and future work |
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232 | (3) |
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232 | (3) |
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11 Robustly optimal dispatch of MEMGs with flexible loads |
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235 | (24) |
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235 | (2) |
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237 | (2) |
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11.2 Two-stage coordinated operation of multi-energy microgrid |
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239 | (3) |
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11.2.1 Multi-energy microgrid with flexible thermal and electric loads |
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239 | (1) |
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11.2.2 First stage-day-ahead PBDR and thermal energy storage scheduling |
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240 | (1) |
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11.2.3 Second stage-hourly CCHP dispatch |
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241 | (1) |
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11.3 Mathematical formulation |
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242 | (5) |
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11.3.1 Price-based demand response model |
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242 | (1) |
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11.3.2 Indoor temperature control model |
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242 | (1) |
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11.3.3 Coordination optimisation model |
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243 | (4) |
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11.4 Two-stage robust optimisation method |
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247 | (2) |
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11.4.1 Uncertainty set modelling |
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247 | (1) |
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11.4.2 Two-stage robust optimisation model |
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248 | (1) |
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11.4.3 Solution algorithm |
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248 | (1) |
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249 | (6) |
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11.5.1 Test system description |
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249 | (2) |
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11.5.2 Day-ahead scheduling results |
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251 | (2) |
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11.5.3 Intraday dispatch results |
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253 | (1) |
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11.5.4 Operation robustness check |
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253 | (2) |
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255 | (4) |
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255 | (4) |
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12 Multi-timescale coordinated voltage/var control optimisation |
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259 | (22) |
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259 | (2) |
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12.2 Multi-timescale coordinated voltage/var regulation |
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261 | (2) |
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12.2.1 Timescale decomposition |
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261 | (1) |
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12.2.2 Proposed coordination framework |
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262 | (1) |
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12.2.3 Load and RES generation forecasting |
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263 | (1) |
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12.3 Mathematical formulation |
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263 | (2) |
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12.3.1 Distribution network power flow model |
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263 | (1) |
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12.3.2 Optimisation model for volt/var control |
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264 | (1) |
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12.4 Two-stage stochastic programming model |
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265 | (4) |
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12.4.1 Stochastic programming model |
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265 | (1) |
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12.4.2 Deterministic equivalent |
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266 | (1) |
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12.4.3 Scenario construction and reduction |
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267 | (1) |
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12.4.4 Mapping relationship between VVC and programming model |
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268 | (1) |
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12.5 Simulation test results |
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269 | (9) |
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12.5.1 Test system and parameter settings |
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269 | (1) |
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270 | (1) |
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270 | (2) |
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272 | (4) |
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276 | (2) |
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278 | (3) |
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279 | (2) |
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13 Three-stage robust inverter-based voltage/var control optimisation |
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281 | (24) |
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281 | (2) |
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283 | (2) |
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13.2 Three-stage robust inverter-based voltage/var control |
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285 | (2) |
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13.2.1 First stage-capacitor bank and on-load tap changer (OLTC) scheduling in a rolling horizon |
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285 | (2) |
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13.2.2 Second stage-inverter output dispatch |
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287 | (1) |
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13.2.3 Third stage-inverter droop control |
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287 | (1) |
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13.3 Mathematical formulation |
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287 | (5) |
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13.3.1 Photovoltaic (PV) inverter operation model |
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287 | (2) |
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13.3.2 Coordination optimisation model |
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289 | (3) |
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13.4 Two-stage robust optimisation method |
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292 | (2) |
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13.4.1 Uncertainty set modelling |
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292 | (1) |
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13.4.2 Two-stage robust optimisation model |
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293 | (1) |
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13.4.3 Solution algorithm |
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294 | (1) |
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294 | (8) |
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13.5.1 Test system description |
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294 | (1) |
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13.5.2 One-hour simulation |
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295 | (3) |
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13.5.3 24-hour time-series simulation |
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298 | (3) |
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13.5.4 TRI-VVC vs. Single-Stage Centralised VVC |
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301 | (1) |
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302 | (3) |
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303 | (2) |
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Part IV Coordinated real-time control of DERs: distributed controller design and hardware-in-the-loop tests |
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305 | (140) |
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14 Power system frequency control by aggregated energy storage systems |
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307 | (26) |
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307 | (2) |
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14.2 Proposed frequency control scheme |
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309 | (1) |
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309 | (1) |
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14.2.2 Multi-area microgrids |
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309 | (1) |
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14.3 Proposed disturbance observer |
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310 | (2) |
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14.3.1 System disturbance observer |
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311 | (1) |
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312 | (1) |
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14.4 Distributed finite-time control of ESA |
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312 | (5) |
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14.4.1 Communication graph |
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313 | (1) |
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14.4.2 Finite-time consensus control |
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313 | (2) |
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14.4.3 Numerical illustrations |
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315 | (2) |
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14.5 Results and discussions |
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317 | (10) |
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14.5.1 Case 1: system contingency |
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318 | (2) |
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14.5.2 Case 2: normal operation |
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320 | (2) |
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14.5.3 Case 3: multi-area microgrids |
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322 | (1) |
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14.5.4 Case 4: comparison with linear control algorithm |
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323 | (4) |
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327 | (6) |
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327 | (3) |
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330 | (3) |
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15 Power system frequency support by grid-interactive smart buildings |
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333 | (26) |
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333 | (2) |
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335 | (4) |
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15.2.1 Multi-area microgrids with GISBs |
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335 | (1) |
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15.2.2 Modelling of GISBs |
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336 | (2) |
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15.2.3 Communication network of GISBs |
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338 | (1) |
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15.3 Proposed control framework for GISBs |
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339 | (4) |
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15.3.1 Control objectives |
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339 | (1) |
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340 | (2) |
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15.3.3 Design of distributed sliding mode control |
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342 | (1) |
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15.4 Results and discussions |
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343 | (10) |
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15.4.1 Case 1: system contingency |
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344 | (3) |
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15.4.2 Case 2: normal operation |
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347 | (1) |
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15.4.3 Case 3: comparison with linear consensus control |
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348 | (2) |
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15.4.4 Case 4: impact of communication time delay |
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350 | (3) |
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353 | (6) |
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353 | (2) |
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355 | (4) |
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16 Decentralised-distributed hybrid voltage control by inverter-based DERs |
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359 | (18) |
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359 | (1) |
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16.2 Voltage control in distribution networks |
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360 | (3) |
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16.2.1 Problem description |
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360 | (1) |
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16.2.2 Var capacity from power inverters |
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361 | (2) |
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16.3 Proposed hybrid voltage control |
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363 | (5) |
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16.3.1 Decentralised voltage control |
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364 | (1) |
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16.3.2 Distributed voltage control |
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365 | (3) |
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16.3.3 Supplementary voltage control |
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368 | (1) |
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368 | (7) |
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368 | (3) |
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371 | (1) |
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372 | (1) |
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373 | (2) |
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375 | (2) |
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376 | (1) |
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17 Two-level distributed voltage/var control by aggregated PV inverters |
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377 | (22) |
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377 | (1) |
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17.2 Proposed VVC architecture |
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378 | (2) |
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378 | (1) |
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17.2.2 Architecture of proposed VVC |
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379 | (1) |
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380 | (3) |
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17.3.1 Real-time VVC by droop control |
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380 | (1) |
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17.3.2 Distributed aggregation of PV inverters |
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381 | (2) |
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17.3.3 Var capacity of PV aggregator |
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383 | (1) |
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383 | (4) |
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17.4.1 Power flow in MV distributed networks |
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384 | (1) |
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17.4.2 Distributed solution |
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385 | (2) |
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387 | (10) |
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17.5.1 Test system and parameter settings |
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387 | (1) |
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388 | (2) |
|
17.5.3 Case A: 33-bus networks |
|
|
390 | (4) |
|
17.5.4 Case B: 69-bus networks |
|
|
394 | (3) |
|
|
397 | (2) |
|
|
397 | (1) |
|
|
398 | (1) |
|
18 Event-triggered control of DERs and controller hardware-in-the-loop validation |
|
|
399 | (24) |
|
|
399 | (1) |
|
18.2 Cyber-physical Microgrids |
|
|
400 | (3) |
|
|
400 | (2) |
|
|
402 | (1) |
|
18.3 Distributed event-triggered secondary control |
|
|
403 | (6) |
|
18.3.1 Problem formation and control objectives |
|
|
403 | (2) |
|
|
405 | (4) |
|
18.4 Controller hardware-in-the-loop implementation |
|
|
409 | (1) |
|
18.5 Experimental test results |
|
|
410 | (10) |
|
18.5.1 Case 1: step response |
|
|
412 | (2) |
|
18.5.2 Effectiveness of the event-triggered control |
|
|
414 | (1) |
|
18.5.3 Case 2: Communication failures and topology change |
|
|
415 | (2) |
|
18.5.4 Case 3: scalability test |
|
|
417 | (3) |
|
|
420 | (3) |
|
|
420 | (3) |
|
19 Three-level coordinated voltage control of DERs and power hardware-in-the-loop validation |
|
|
423 | (22) |
|
|
423 | (1) |
|
|
424 | (2) |
|
19.2.1 Power distribution networks |
|
|
424 | (1) |
|
|
425 | (1) |
|
19.2.3 Communication network |
|
|
425 | (1) |
|
19.3 Three-level coordinated voltage control |
|
|
426 | (4) |
|
19.3.1 Level I: ramp-rate control |
|
|
426 | (2) |
|
19.3.2 Level II: droop control |
|
|
428 | (1) |
|
19.3.3 Level III: distributed control |
|
|
428 | (2) |
|
|
430 | (2) |
|
19.5 Power hardware-in-the-loop experimental tests |
|
|
432 | (11) |
|
|
432 | (3) |
|
19.5.2 Eigenvalue analysis |
|
|
435 | (1) |
|
19.5.3 Test Case 1: voltage drop with step load change |
|
|
436 | (1) |
|
19.5.4 Test Case 2: communication delays |
|
|
437 | (1) |
|
19.5.5 Test Case 3: voltage rise with real PV data |
|
|
438 | (2) |
|
19.5.6 Test Case 4: comparison study |
|
|
440 | (3) |
|
|
443 | (2) |
|
|
443 | (2) |
Index |
|
445 | |