Adaptive Hybrid Active Power Filters

Description

This book introduces advanced thyristor-based shunt hybrid active power filters (HAPFs) for power quality improvement in power grids, which are characterized by a low dc-link operating voltage and a wide compensation range. This means they can overcome the high dc-link voltage requirement of conventional active power filters and the narrow compensation range problem of LC-coupling hybrid active power filters. Consisting of 10 chapters, the book discusses the principle, design, control and hardware implementation of thyristor-based hybrid active power filters. It covers 1) V-I characteristics, cost analysis, power loss and reliability studies of different power filters; 2) mitigation of the harmonic injection technique for thyristor-controlled parts; 3) nonlinear pulse width modulation (PWM) control; 4) parameter design methods; 5) minimum inverter capacity design; 6) adaptive dc-link voltage control; 7) unbalanced control strategy; 8) selective compensation techniques; and 9) the hardware prototype design of thyristor-based HAPFs, verified by simulation and experimental results. It enables readers to gain an understanding of the basic power electronics techniques applied in power systems as well as the advanced techniques for controlling, implementing and designing advanced thyristor-based HAPFs. Front Matter ....Pages i-xviii Introduction (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 1-16 Comparisons Among Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) and Other Different Power Quality Filters (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 17-46 Mitigation of the Harmonic Injection in TCLC Part and Nonlinear Hysteresis PWM Control in Active Inverter Part of Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 47-73 Modeling and Parameter Design Method of Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) for Balanced/Unbalanced Loading Compensation (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 75-102 Proposed Unbalanced Control Strategy for Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 103-127 Minimizing Inverter Capacity Design and Comparative Performance Evaluation of Static Var Compensator Coupling Hybrid Active Power Filters (SVC-HAPFs) (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 129-149 Adaptive DC-Link Voltage Control of Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 151-179 Selective Compensation of Distortion, Unbalanced and Reactive Power of a Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 181-203 Implementation of a 110 V-5 kVA Three-Phase Three-Wire of Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) Experimental Prototype (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 205-224 Conclusions and Prospective for Further Work (Lei Wang, Man-Chung Wong, Chi-Seng Lam)....Pages 225-227 Back Matter ....Pages 229-232