Page 12 - Decision Making Applications in Modern Power Systems

xii Contents

13.6 Case study (fuzzy logic with predictive maintenance) 359
13.6.1 Results achieved 363
Acknowledgment 364
References 364

14. Integration of fixed-speed wind energy
conversion systems into unbalanced and harmonic
distorted power grids 365
Alp Karadeniz, Murat E. Balci and Shady H.E. Abdel Aleem
14.1 Introduction 365
14.2 Problem statement and description 367
14.2.1 Modeling of the fixed-speed wind energy conversion
systems 369
14.2.2 Determination of the permissible penetration level 371
14.2.3 Modeling of the Steinmetz compensator 372
14.2.4 Modeling of the single-tuned harmonic filter 373
14.3 Problem formulation and solution algorithm 374
14.3.1 Objective function 374
14.3.2 Nonequality constraints 375
14.3.3 Particle swarm optimization algorithm 376
14.4 Simulation results and discussion 377
14.4.1 Performance evaluation of the proposed
compensator 381
14.4.2 Sensitivity analysis of the proposed optimal
compensator design under variation of utility
and load-side conditions 383
14.5 Conclusion 384
References 385

15. Impact of demand-side management system in
autonomous DC microgrid 389
Rajeev Kumar Chauhan and Kalpana Chauhan
15.1 Introduction 389
15.2 Analysis of AC microgrid and DC microgrid 391
15.2.1 Converter stages 391
15.2.2 Energy demand 392
15.2.3 Estimation of photovoltaic and battery size 392
15.3 State of charge of battery bank 394
15.4 Autonomous DC microgrid 394
15.4.1 Conceptual diagram of DC microgrid 394
15.4.2 Hardware setup of DC microgrid 395
15.4.3 Control and monitoring unit of DC microgrid 397
15.5 Demand-side management algorithm 399
15.6 Results and discussions 401
15.6.1 Performance results of demand-side management
scheme with sufficient photovoltaic power 402