中国电气工程学报（英文） ›› 2016, Vol. 2 ›› Issue (1): 24-39.

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Evolution of Single-Phase Power Converter Topologies Underlining Power Decoupling

Shuang Xu, Liuchen Chang*, and Riming Shao   

  1. Dept. of Elec. & Comp. Eng., University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
  • 出版日期:2016-01-20 发布日期:2019-10-31
  • 通讯作者: *, E-mail: LChang@unb.ca.
  • 作者简介:Shuang Xu (S’15) received the B. Sc. E.E. in 2012 from Hefei University of Technology, Hefei, China. Currently he is ursuing the Ph. D. degree in electrical engineering at University of New Brunswick, Fredericton, Canada. His research interests include renewable energy systems, energy storage technologies, power electronics, power converters and micro-inverters.
    Liuchen Chang (M’92–SM’99) received the B.S.E.E. degree from Northern Jiaotong University, Beijing, in 1982; the M.Sc. degree from the China Academy of Railway Sciences, Beijing, in 1984; and the Ph.D. degree from Queen’s University, Kingston, in 1991. He is a Professor at the University of New Brunswick, leading the Sustainable Power Research Group and numerous largescaled collaborative research projects. His research interests and experience include distributed generation, renewable energy conversion, direct load controls in a smart grid environment, and power electronic converters. Dr. Chang is a fellow of Canadian Academy of Engineering.
    Riming Shao (M’08) received the B.Sc.E.E. in 1994 and M.Sc. in 1997 from Tongji University, Shanghai, China; and the Ph.D. in 2010 from the University of New Brunswick, Fredericton, Canada. He is currently a Research Associate at the University of New Brunswick. His research interests include power converters, renewable energy systems, distributed power generation systems, and smart grids. Dr. Shao is a registered professional engineer of APEGNB, Canada.

Evolution of Single-Phase Power Converter Topologies Underlining Power Decoupling

Shuang Xu, Liuchen Chang*, and Riming Shao   

  1. Dept. of Elec. & Comp. Eng., University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
  • Online:2016-01-20 Published:2019-10-31
  • Contact: *, E-mail: LChang@unb.ca.
  • About author:Shuang Xu (S’15) received the B. Sc. E.E. in 2012 from Hefei University of Technology, Hefei, China. Currently he is ursuing the Ph. D. degree in electrical engineering at University of New Brunswick, Fredericton, Canada. His research interests include renewable energy systems, energy storage technologies, power electronics, power converters and micro-inverters.
    Liuchen Chang (M’92–SM’99) received the B.S.E.E. degree from Northern Jiaotong University, Beijing, in 1982; the M.Sc. degree from the China Academy of Railway Sciences, Beijing, in 1984; and the Ph.D. degree from Queen’s University, Kingston, in 1991. He is a Professor at the University of New Brunswick, leading the Sustainable Power Research Group and numerous largescaled collaborative research projects. His research interests and experience include distributed generation, renewable energy conversion, direct load controls in a smart grid environment, and power electronic converters. Dr. Chang is a fellow of Canadian Academy of Engineering.
    Riming Shao (M’08) received the B.Sc.E.E. in 1994 and M.Sc. in 1997 from Tongji University, Shanghai, China; and the Ph.D. in 2010 from the University of New Brunswick, Fredericton, Canada. He is currently a Research Associate at the University of New Brunswick. His research interests include power converters, renewable energy systems, distributed power generation systems, and smart grids. Dr. Shao is a registered professional engineer of APEGNB, Canada.

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摘要： Single-phase power converters are widely used in electric distribution systems under 10 kilowatts, where the second-order power imbalance between the AC side and DC side is an inherent issue. The pulsating power is decoupled from the desired constant DC power, through an auxiliary circuit using energy storage components. This paper provides a comprehensive overview of the evolution of single-phase converter topologies underlining power decoupling techniques. Passive power decoupling techniques were commonly used in single-phase power converters before active power decoupling techniques were developed. Since then, active power decoupling topologies have generally evolved based on three streams of concepts: 1) current-reference active power decoupling; 2) DC voltage-reference active power decoupling; and 3) AC voltage-reference active power decoupling. The benefits and drawbacks of each topology have been presented and compared with its predecessor, revealing underlying logic in the evolution of the topologies. In addition, a general comparison has also been made in terms of decoupling capacitance/inductance, additional cost, efficiency and complexity of control, providing a benchmark for future power decoupling topologies.

关键词: Power decoupling, second-order ripple power, single-phase power converter, singlephase inverter

Abstract: Single-phase power converters are widely used in electric distribution systems under 10 kilowatts, where the second-order power imbalance between the AC side and DC side is an inherent issue. The pulsating power is decoupled from the desired constant DC power, through an auxiliary circuit using energy storage components. This paper provides a comprehensive overview of the evolution of single-phase converter topologies underlining power decoupling techniques. Passive power decoupling techniques were commonly used in single-phase power converters before active power decoupling techniques were developed. Since then, active power decoupling topologies have generally evolved based on three streams of concepts: 1) current-reference active power decoupling; 2) DC voltage-reference active power decoupling; and 3) AC voltage-reference active power decoupling. The benefits and drawbacks of each topology have been presented and compared with its predecessor, revealing underlying logic in the evolution of the topologies. In addition, a general comparison has also been made in terms of decoupling capacitance/inductance, additional cost, efficiency and complexity of control, providing a benchmark for future power decoupling topologies.

Key words: Power decoupling, second-order ripple power, single-phase power converter, singlephase inverter