Adaptive Hybrid Active Power Filters

Preface
Acknowledgements
Contents
Abbreviations
1 Introduction
	Abstract
	1.1 Power Quality Issues and Its Market
		1.1.1 Low Power Factor
		1.1.2 Current Harmonic Pollution
		1.1.3 Current Unbalanced Problem
		1.1.4 Power Quality Compensation Market
	1.2 Development of Power Quality Compensators
	1.3 Inductive-, Capacitive-and Adaptive-Coupling Power Quality Compensators and Their Control Issues
		1.3.1 The Reference Signals Determination Methods
		1.3.2 Pulse Width Modulations
	1.4 TCLC-HAPF and Its Potential Advantages
	1.5 Research Challenges and Goals
	1.6 Book Organization
	1.7 Appendix: Voltage and Current Standards
	References
2 Comparisons Among Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) and Other Different Power Quality Filters
	Abstract
	2.1 Introduction
	2.2 Structures of APF, HAPF and TCLC-HAPF
	2.3 V-I Characteristics of APF, HAPF and TCLC-HAPF
		2.3.1 V-I Characteristics of APF, HAPF and TCLC-HAPF
		2.3.2 Simulation Case Studies
	2.4 Cost Comparison Among APF, HAPF and TCLC-HAPF
		2.4.1 Cost Comparison Among APF, HAPF and TCLC-HAPF Under Low Voltage Levels
		2.4.2 Cost Comparisons Among APF, HAPF and TCLC-HAPF Under High Voltage Levels
	2.5 Reliability Comparison Among APF, HAPF and TCLC-HAPF
	2.6 Power Loss Comparison Among APF, HAPF and TCLC-HAPF
	2.7 Tracking Performance Comparison Among APF, HAPF and TCLC-HAPF
	2.8 Experimental Results
		2.8.1 Experimental Results of APF
		2.8.2 Experimental Results of HAPF
		2.8.3 Experimental Results of TCLC-HAPF
	2.9 Summary
	2.10 Appendix: Calculation of Failure Rate for Different Components
	References
3 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)
	Abstract
	3.1 Introduction
	3.2 Circuit Configuration and Modeling of TCLC Part and TCLC-HAPF
	3.3 Mitigation of the Harmonic Injection in TCLC Part
		3.3.1 Mitigation of the Harmonic Injection in TCLC Part
		3.3.2 The Selection of n1 and n2 Through the Design of Lc
		3.3.3 Simulation and Experimental Verifications of the Mitigation of the Harmonic Injection in TCLC Part
	3.4 Nonlinear Hysteresis PWM Control in Active Inverter Part of TCLC-HAPF
		3.4.1 Compensating Current Characteristics of TCLC-HAPF
		3.4.2 Non-linear Adaptive Hysteresis Band PWM Controller for TCLC-HAPF
			3.4.2.1 Relationship Between Hysteresis Band H and ATHD
			3.4.2.2 Control Block Diagram of Proposed Non-linear Adaptive Hysteresis Band Controller for TCLC-HAPF
			3.4.2.3 Simulation Verifications of the Non-linear Adaptive Hysteresis Band PWM in Active Inverter Part of TCLC-HAPF
	3.5 Summary
	References
4 Modeling and Parameter Design Method of Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) for Balanced/Unbalanced Loading Compensation
	Abstract
	4.1 Introduction
	4.2 Circuit Configuration and Modeling of TCLC-HAPF
	4.3 Proposed TCLC-HAPF Parameter Design Method Design for Balanced Loads
	4.4 Proposed TCLC-HAPF Parameter Design Method Design for Unbalanced Loads
		4.4.1 Design of VDCf, CPF and LPF Based on Power Flow Analysis Under Fundamental Frequency Consideration
		4.4.2 Design of VDCh Based on Harmonic Frequency Analysis
		4.4.3 Design of Lc for Current Ripple Filtering
		4.4.4 Summary of TCLC-HAPF Parameter Design
	4.5 Simulation Case Studies
	4.6 Experimental Results
	4.7 Summary
	References
5 Proposed Unbalanced Control Strategy for Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF)
	Abstract
	5.1 Introduction
	5.2 Circuit Configuration of Three-Phase Three-Wire TCLC-HAPF
	5.3 Proposed Unbalanced Control Strategy for TCLC-HAPF
		5.3.1 TCLC Part Control Strategy
			5.3.1.1 Calculation of Vnf
			5.3.1.2 Obtain the Impedance of Xaf, Xbf and Xcf
			5.3.1.3 Find the Final Firing Angles αx Referenced to the Phase Angle of Vx
		5.3.2 The Active Inverter Part Control Strategy
			5.3.2.1 Instantaneous Power Compensation Control
			5.3.2.2 The DC-Link Voltage Control
			5.3.2.3 Current PWM Control
		5.3.3 The Proposed Hybrid Controller for TCLC-HAPF
	5.4 Simulation and Experimental Results
	5.5 Summary
	5.6 Appendix: Balancing Three-phase Fundamental Active Power by Reactive power compensation
	References
6 Minimizing Inverter Capacity Design and Comparative Performance Evaluation of Static Var Compensator Coupling Hybrid Active Power Filters (SVC-HAPFs)
	Abstract
	6.1 Introduction
	6.2 Circuit Configuration and Modeling of SVC-HAPFs
	6.3 Ratio of Phase Active Inverter Rating and SVC Part Rating and Required Minimum DC-Link Voltage
		6.3.1 The Parameter Design and Characteristics 	of FC-TCR and TCLC
		6.3.2 Fundamental Frequency Analysis of Rtot1 and VDC_tot1
		6.3.3 Harmonic Frequency Analysis of Rtotn and VDC_totn
			6.3.3.1 The Rtotn and VDC_totn for Compensating iixn Only
			6.3.3.2 The Rn and VDCn for Compensating Both iixn and iLxn
		6.3.4 The Minimizing Inverter Capacity Design 	of Total Rtot and VDC_Tot
		6.3.5 Comparison of SVC-HAPFs
	6.4 Simulation Results
	6.5 Experimental Results
	6.6 Summary
	References
7 Adaptive DC-Link Voltage Control of Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF)
	Abstract
	7.1 Introduction
	7.2 Circuit Configuration of Three-Phase Three-Wire TCLC-HAPF
	7.3 Proposed Simplified Minimum DC-Link Voltage Calculation Method
		7.3.1 Deduction of DC-Link Voltage (VDCxf) at Fundamental Frequency
		7.3.2 Deduction of DC-Link Voltage (VDCxh) at Harmonic Frequency
		7.3.3 Comparison Between Conventional and Proposed Minimum VDC Calculation Methods
	7.4 Control Block of the Proposed Adaptive DC-Link Voltage Controlled TCLC-HAPF
		7.4.1 TCLC Control Block
		7.4.2 Active VSI Control Block
		7.4.3 Adaptive DC-Link Voltage Control Block
			7.4.3.1 Reference DC-Link Voltage Calculation Block
			7.4.3.2 DC-Link Voltage Feedback Control Block
	7.5 Simulation Case Studies
		7.5.1 Under Compensation by Adaptive 	VDC Controlled TCLC-HAPF
		7.5.2 Over Compensation by Adaptive VDC Controlled TCLC-HAPF
	7.6 Experimental Results
		7.6.1 Dynamic Performance of Adaptive VDC Controlled TCLC-HAPF to Load Variation
		7.6.2 Comparison with Fixed VDC Controlled TCLC-HAPF
	7.7 Summary
	References
8 Selective Compensation of Distortion, Unbalanced and Reactive Power of a Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF)
	Abstract
	8.1 Introduction
	8.2 Circuit Configuration of the TCLC-HAPF
	8.3 Power Analysis of the Proposed Selective Compensation
	8.4 Proposed Selective Compensation Control Strategy of TCLC-HAPF
		8.4.1 Active Inverter Part Control
		8.4.2 TCLC Part Control
		8.4.3 Compensation Priority Selection Among kQ, kU and kH
		8.4.4 Control Block of TCLC-HAPF
	8.5 Simulation and Experimental Verifications
		8.5.1 PSCAD Simulations
		8.5.2 Experimental Results
	8.6 Summary
	References
9 Implementation of a 110 V-5 kVA Three-Phase Three-Wire of Thyristor Controlled LC-Coupling Hybrid Active Power Filter (TCLC-HAPF) Experimental Prototype
	Abstract
	9.1 Introduction
	9.2 Circuit Configuration of the TCLC-HAPF Experimental Prototype
	9.3 Hardware Design of TCLC-HAPF Experimental Prototype
		9.3.1 Power Semiconductor Switching Devices and Their Drivers
			9.3.1.1 Thyristor and Its Drivers in TCLC Part
			9.3.1.2 IGBT and Its Drivers in Active Inverter Part
		9.3.2 Transducer with Signal Conditioning Boards
	9.4 Software Design of TCLC-HAPF Experimental Prototype
	9.5 Experimental Results
		9.5.1 Experimental Results of TCLC-HAPF for Dynamic Inductive and Capacitive Reactive Power Compensations
		9.5.2 Experimental Results of TCLC-HAPF for Reactive Power and Harmonic Compensations
		9.5.3 Experimental Results of TCLC-HAPF for Unbalanced Loading Compensation
		9.5.4 Experimental Results of TCLC-HAPF Compensation During Voltage Dip
		9.5.5 Experimental Results of TCLC-HAPF Compensation Under Voltage Fault
	9.6 Summary
	References
10 Conclusions and Prospective for Further Work
	Abstract
	10.1 Conclusions
	10.2 Perspectives for Future Works
Biography of Authors