Page 7 - Decision Making Applications in Modern Power Systems

Contents vii

4.3.4 Third generation of power quality improvement
devices 100
4.4 Conclusion 113
References 117

5. Modeling and simulation of active electrical
distribution systems using the OpenDSS 121
Luiz Carlos Ribeiro, Junior, Francinei Lucas Vieira,
Benedito Donizeti Bonatto, Antonio Carlos Zambroni de Souza
and Paulo Fernando Ribeiro
5.1 Introduction 121
5.2 Active electrical distribution systems 122
5.2.1 Impact of high penetration of distributed generation
on power distribution systems 122
5.2.2 Smart functions on power inverters 125
5.2.3 Final considerations 126
5.3 Modeling and simulation using OpenDSS 126
5.3.1 The OpenDSS 127
5.3.2 Power flow in OpenDSS: the current injection method 127
5.3.3 The photovoltaic system model 130
5.3.4 The OpenDSS storage 131
5.3.5 The load model 132
5.4 Application in case studies 133
5.4.1 Case 1: Voltage control in distribution systems
with high penetration of photovoltaics through smart
functions 133
5.4.2 Case 2: Harmonic studies in OpenDSS considering
renewable distributed generation and aggregate
linear load models 140
5.4.3 Harmonic studies 142
5.5 Result analysis 147
5.5.1 Case 1: Volt/Var and Volt/Watt controls 147
5.5.2 Case 2: Harmonics 149
5.6 Conclusion 149
Acknowledgment 150
References 150

6. Adaptive estimation and tracking of power
quality disturbances with classification for smart
grid applications 153
Papia Ray, Harish Kumar Sahoo and Ganesh Kumar Budumuru
6.1 Introduction 153
6.2 Methodologies for efficient estimation of power quality
disturbances by using adaptive filters 155
6.2.1 Signal model for power quality disturbances and
harmonics estimation 155