A General Approach to Programmable and Reconfigurable Emulation of Power Impedances

Starting with a brief review on the existing methods of impedance emulation, this paper addresses a general and systematic approach to programmable and reconfigurable emulation of power impedances. The proposed approach not only enables the impedance value to be programed, but also allows the characteristics (i.e., type) of the impedance to be reconfigured instantly during the operation. Based on the proposed control method, emulation of at least six types of emulated power impedances (EPI) can be easily attained. In particular, it is theoretically and practically demonstrated that the impedance characteristic can be emulated through a combination of different functions. The systematic derivation of these functions is explained. New techniques that compensate the circuit power losses are introduced. This general approach has been practically verified in several EPI. Both steady-state and dynamic performance of these EPI confirm the programmability and reconfigurability. It is envisaged that the proposed method can be applied to a range of functions, such as power filtering, energy storage, and even power conversion based on direct impedance control.

[1]  Siew-Chong-Tan,et al.  A plug-and-play ripple mitigation approach for DC-links in hybrid systems , 2016, 2016 IEEE Applied Power Electronics Conference and Exposition (APEC).

[2]  Yun Wei Li,et al.  Analysis, Design, and Implementation of Virtual Impedance for Power Electronics Interfaced Distributed Generation , 2011, IEEE Transactions on Industry Applications.

[3]  Siew-Chong Tan,et al.  Direct AC/DC Rectifier With Mitigated Low-Frequency Ripple Through Inductor-Current Waveform Control , 2015, IEEE Transactions on Power Electronics.

[4]  Bo Liu,et al.  Control and implementation of converter based ac transmission line emulation , 2015, 2015 IEEE Applied Power Electronics Conference and Exposition (APEC).

[5]  Mor Mordechai Peretz,et al.  Plug-and-play electronic capacitor for VRM applications , 2016, 2016 IEEE Applied Power Electronics Conference and Exposition (APEC).

[6]  Xinbo Ruan,et al.  Adaptive Active Capacitor Converter for Improving Stability of Cascaded DC Power Supply System , 2013, IEEE Transactions on Power Electronics.

[7]  Atsuo Kawamura,et al.  Realization of negative inductance using variable active-passive reactance (VAPAR) , 1997 .

[8]  Ruxi Wang,et al.  Low-Frequency Power Decoupling in Single-Phase Applications: A Comprehensive Overview , 2017, IEEE Transactions on Power Electronics.

[9]  A. Nabae,et al.  A series active capacitance for compensating voltage drops caused by source impedances in power systems , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.

[10]  Siew-Chong Tan,et al.  A Single-Stage Two-Switch PFC Rectifier With Wide Output Voltage Range and Automatic AC Ripple Power Decoupling , 2017, IEEE Transactions on Power Electronics.

[11]  Xinbo Ruan,et al.  A Flicker-Free Electrolytic Capacitor-Less AC–DC LED Driver , 2011, IEEE Transactions on Power Electronics.

[12]  Hui Wang,et al.  A novel active power decoupling single-phase PWM rectifier topology , 2014, 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014.

[13]  Ahmed S. Morsy,et al.  Comparison of Active Power Decoupling Methods for High-Power-Density Single-Phase Inverters Using Wide-Bandgap FETs for Google Little Box Challenge , 2016, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[14]  Yaow-Ming Chen,et al.  Development of the active capacitor for PFC converters , 2014, 2014 IEEE Energy Conversion Congress and Exposition (ECCE).

[15]  Keiji Wada,et al.  Control Methods and Compensation Characteristics of a Series Active Filter for a Neutral Conductor , 2006, IEEE Transactions on Industrial Electronics.

[16]  Li Peng,et al.  Reactive power compensation with improvement of current waveform quality for single-phase buck-type Dynamic Capacitor , 2016, 2016 IEEE Applied Power Electronics Conference and Exposition (APEC).

[17]  Frede Blaabjerg,et al.  Virtual-Impedance-Based Control for Voltage-Source and Current-Source Converters , 2015, IEEE Transactions on Power Electronics.

[18]  Chi K. Tse,et al.  A Survey, Classification, and Critical Review of Light-Emitting Diode Drivers , 2016, IEEE Transactions on Power Electronics.

[19]  Bo Liu,et al.  Design consideration of converter based transmission line emulation , 2016, 2016 IEEE Applied Power Electronics Conference and Exposition (APEC).

[20]  Yaow-Ming Chen,et al.  Active capacitor with ripple-based duty cycle modulation for AC-DC applications , 2016, 2016 IEEE Applied Power Electronics Conference and Exposition (APEC).

[21]  nasa.  Input-current shaped ac to dc converters , 2013 .

[22]  Siew-Chong Tan,et al.  Integration of an Active Filter and a Single-Phase AC/DC Converter With Reduced Capacitance Requirement and Component Count , 2016, IEEE Transactions on Power Electronics.

[23]  Frede Blaabjerg,et al.  Passivity-Based Stability Assessment of Grid-Connected VSCs—An Overview , 2016, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[24]  Atsuo Kawamura,et al.  Proposal of variable active-passive reactance , 1992, Proceedings of the 1992 International Conference on Industrial Electronics, Control, Instrumentation, and Automation.

[25]  Prasad Enjeti,et al.  Analysis and design of active inductor as DC-link reactor for lightweight adjustable speed drive systems , 2014, 2014 IEEE Energy Conversion Congress and Exposition (ECCE).