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浙江大学学报(工学版)  2017, Vol. 51 Issue (9): 1861-1869    DOI: 10.3785/j.issn.1008-973X.2017.09.021
电气工程     
采用多脉整流技术的电力电子变压器
朱明磊, 赵荣祥, 杨欢
浙江大学 电气工程学院, 浙江 杭州, 310027
Power electronic transformer using multi-pulse rectification technique
ZHU Ming-lei, ZHAO Rong-xiang, YANG Huan
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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摘要:

针对电力电子变压器(PET)中高压直流母线电容器的可靠性差和成本高的问题,提出一种无高压直流滤波电容的新型PET拓扑.与已有PET拓扑相比,该拓扑采用多脉移相整流技术(MPR)实现输入电流谐波抑制,避免了高压直流母线滤波电容带来的成本和可靠性问题.由于取消了高压直流母线电容,新型PET能够在无充电电阻的条件下实现柔性并网,提高了其一次侧各个直流母线的均压控制效果.通过Matlab/Simulink仿真在电压为6 kV、功率为100 kVA的样机上进行实验,结果验证了新型PET母线均压、消除谐波和柔性并网等功能的有效性.

Abstract:

A novel topology of power electronic transformer (PET) with no high voltage direct-current (DC) bus capacitors was investigated, aiming to solve low reliability and high cost problems of high voltage DC bus capacitors in PET. Compared with traditional PET topologies, the harmonic eliminating of input current was implemented by multi-pulse rectifiers (MPR) in the proposed topology, and the problem of cost and reliability caused by high voltage DC bus capacitors were eliminated. Because of the cancellation of high-voltage DC bus capacitors, its flexible grid connection was implemented with no charge resistance, and the voltage balancing control effect of each DC bus was improved. The effectiveness of DC bus voltage balancing, harmonic eliminating and flexible grid connection with the proposed PET was verified by simulation of Matlab/Simulink and experimental results from prototype of 6 kV and 100 kVA.

收稿日期: 2016-07-03 出版日期: 2017-08-25
CLC:  TM793  
基金资助:

国家重点研发计划支持项目(2017YFB0903101);国家自然科学基金资助项目(51490682);中央高校基本科研业务费专项基金资助项目(2016XZZX001-02).

通讯作者: 杨欢,男,副教授.orcid.org/0000-0001-5388-0687.     E-mail: yanghuan@zju.edu.cn
作者简介: 朱明磊(1985-),男,博士生,从事电力电子传动研究.orcid.org/0000-0003-2660-5991.E-mail:3031011061@zju.edu.cn
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引用本文:

朱明磊, 赵荣祥, 杨欢. 采用多脉整流技术的电力电子变压器[J]. 浙江大学学报(工学版), 2017, 51(9): 1861-1869.

ZHU Ming-lei, ZHAO Rong-xiang, YANG Huan. Power electronic transformer using multi-pulse rectification technique. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(9): 1861-1869.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2017.09.021        http://www.zjujournals.com/eng/CN/Y2017/V51/I9/1861

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