混合导通模式三相三电平VIENNA 整流器控制策略

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摘要对三相三电平VIENNA型整流器进行物理解耦, 进而分析单相三电平整流电路分别在连续和断续导通模式下的数学模型, 针对该拓扑结构提出了一种适合用于混合导通模式的前馈控制策略。定参数电流环仅适用于一个电流工作模式, 出现混合导通模式时, 其控制效果很差。而在电流控制环中引入前馈, 将理论上想要的占空比叠加在原电流环的输出端, 新的控制环便能适应不同电流工作模式, 从而大大降低电流总谐波失真度(THD_i)。最后通过5kW三相实验样机, 验证了该控制策略的可行性和有效性, 在混合导通模式满载时的功率因数(PF)接近于1。

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	严刚
	姚文熙
	李宾
	杭丽君
	吕征宇

关键词 ：三电平整流器, 物理解耦, 混合导通模式, 功率因数校正, 占空比前馈, VIENNA

Abstract：In this paper, three-phase three-level VIENNA rectifier is decoupled in topology. By analyzing of single-phase three-level rectifier operating in continuous and discontinuous conduction mode, an improved control method based on feedforward is proposed to achieve unit power factor(PF) and reduce the harmonic of the input current in mixed conduction mode(MCM). The problem of parameters conflicted in different modes is solved by adding the desired duty ratio to the output of original current-loop. So the improved current-loop could automatically switch between continuous and discontinuous conduction mode. Finally, an experimental prototype of 5kW is built to verify the feasibility of this strategy. The PF value is close to unity at full load when the converter operates at MCM and the total harmonic distortion of input-current(THD_i) is significantly reduced.

Key words： Three-level rectifier decoupling in topology mixed conduction mode(MCM) power factor correction(PFC) duty-ratio-feedforward

收稿日期: 2011-03-23 出版日期: 2014-03-20

PACS:

TM461

基金资助:国家自然科学基金资助项目(50907059)。

作者简介: 严刚男, 1983年生, 硕士研究生, 主要研究方向为高性能PFC整流器及其数字控制。姚文熙男, 1977年生, 副教授, 硕士生导师, 主要研究方向为智能电网、并网逆变器、变频调速及数字控制。

引用本文:

严刚, 姚文熙, 李宾, 杭丽君, 吕征宇. 混合导通模式三相三电平VIENNA 整流器控制策略[J]. 电工技术学报, 2012, 27(12): 87-93. Yan Gang, Yao Wenxi, Li Bin, Hang Lijun, Lu Zhengyu. Control Strategy of Three-Phase Three-Level VIENNA Rectifier Operating in Mixed Conduction Mode. Transactions of China Electrotechnical Society, 2012, 27(12): 87-93.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2012/V27/I12/87

[1] 裘迅, 方宇, 王儒, 等. 三相高功率因数电压型PWM整流器控制策略[J]. 电工技术学报, 2008, 23(11): 96-102.
Qiu Xun, Fang Yu, Wang Ru, et al. Control strategy of three phase high power factor PWM rectitier[J]. Transactions of China Electrotechnical Society, 2008, 23(11): 96-102.
[2] 陈仲, 朱银玉, 罗颖鹏. 基于交流侧LC滤波的近正弦输入电流三相整流器[J]. 电工技术学报, 2009, 24(11): 108-113.
Chen Zhong, Zhu Yinyu, Luo Yingpeng. Three phase rectifier with near sinusoidal input currents and LC filters connected on the AC side[J]. Transactions of China Electrotechnical Society, 2009, 24(11): 108-113.
[3] 陈仲, 朱银玉, 邱岩, 等. 近正弦输入电流三相整流器的分析和参数设计[J]. 中国电机工程学报, 2009, 29(36): 29-34.
Chen Zhong, Zhu Yinyu, Qiu Yan, et al. Analysis and design of three-phase rectifier with near-sinusoidal input currents[J]. Proceedings of the CSEE, 2009, 29(36): 29-34.
[4] 刘桂花, 王卫, 徐殿国. 具有快速动态响应的数字功率因数校正算法[J]. 中国电机工程学报, 2009, 29(12): 10-15.
Liu Guihua, Wang Wei, Xu Dianguo. Digital power factor correction algorithm with fast dynamic response[J]. Proceedings of the CSEE, 2009, 29(12): 10-15.
[5] Hesameddin M T, Ali M, Mohammad R Z, et al. A dual-frame hybrid vector control of vector-modulated VIENNA I rectifier for unity power factor operation under unbalanced mains condition[C]. IEEE Applied Power Electronics Conference and Exposition, Austin, 2008.
[6] 张东升, 张东来, 王陶, 等. 三电平整流器的PFC及中点平衡控制方法[J]. 电工技术学报, 2009, 24(10): 81-86.
Zhang Dongsheng, Zhang Donglai, Wang Tao, et al. PFC and neutral point balanced control method of three-1evel rectifier[J]. Transactions of China Electrotechnical Society, 2009, 24(10): 81-86.
[7] 孟永庆, 沈传文, 刘正, 等. 基于零序电压注入的三电平中点箝位整流器中点电位控制方法的研究[J]. 中国电机工程学报, 2007, 27(10): 92-97.
Meng Yongqing, Shen Chuanwen, Liu Zheng, et al. Study on neutral-point potential control method for three-level NPC rectifiers by injecting zero-sequence voltage[J]. Proceedings of the CSEE, 2007, 27(10): 92-97.
[8] 金红元, 邹云屏, 林磊, 等. 三电平PWM整流器双环控制技术及中点电压平衡控制技术的研究[J]. 中国电机工程学报, 2006, 26(20): 64-68.
Jin Hongyuan, Zou Yunping, Lin Lei, et al. Research on the technology of the neutral-point voltage balance and dual-loop control scheme for three-level PWM rectifier[J]. Proceedings of the CSEE, 2006, 26(20): 64-68
[9] Koen D G, David M, Van de Sype, et al. Digitally controlled boost power-factor-correction converters operating in both continuous and discontinuous conduction mode[J]. IEEE Transactions on Industrial Electronics, 2005, 52(1): 88-97.
[10] 张先进, 徐坚. 单周控制三相4线制VIENNA整流器研究[J]. 电气传动, 2009, 39(12), 31-33.
Zhang Xianjin, Xu Jian. Research on 3-phase 4-wire OCC VIENNA rectifier[J]. Electric Drive, 2009, 39(12), 31-33.
[11] 徐德鸿. 电力电子系统建模及控制[M]. 北京: 机械工业出版社, 2002: 6-57.
[12] David M. Van de Sype, Koen D G, et al. Melkebeek. duty-ratio feedforward for digitally controlled boost PFC converters[J]. IEEE Transactions on Industrial Electronics, 2005, 52(1): 108-115.