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J4  2013, Vol. 47 Issue (11): 2031-2037    DOI: 10.3785/j.issn.1008-973X.2013.11.022
电气工程、电信技术     
基于快速分布式主从控制的PCS系统
朱明磊,赵荣祥
浙江大学 电气工程学院,浙江 杭州 310027
Parallel convertor system with high speed distributed master-slave control method
ZHU Ming-lei, ZHAO Rong-xiang
 1.College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China
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摘要:

针对分布式控制的并联逆变器系统(PCS)的环流问题,提出一种快速分布式主从控制方法.这种控制方法是依靠高速通讯总线传输实时的电流指令数据,取代了传统电流有效值指令,实现主机和从机的均流控制.由于从机的电流信号在通讯总线传输过程中延时,所以PCS系统存在一定环流.将信号延时作为输入变量,PCS系统的环流作为输出变量,构建数学模型.基于该数学模型的分析,可以得出结论:通过调整控制器参数可以有效限制PCS系统环流.理论分析和实验结果表明这种分布式控制方法可以有效抑制PCS系统的各套逆变器之间的环流.

Abstract:

Considering circulating currentissue in parallel convertor systems (PCSs), a novel high speed distributed master-slave control method is proposed. In this proposed method, real-time current signals, instead of current RMS signals, were transmitted between master convertor and slave one by the high-speed communication bus, and currents of master and slave convertors were balanced in PCSs. Because the real-time current signals transmitted into the slave ones were delayed by the transmission bus, circulating current existed in the PCSs. A mathematical model was built by taking the current signal delay as the input variable and taking the circulating current as the output variable. The analysis of the mathematical model concludes that circulating current is limited by regulating the parameters of the control loops. Theoretical analysisand experimental results indicate that circulating current in PCS is limited by the high speed distributed master-slave control method.

出版日期: 2013-11-01
:  TM 464  
通讯作者: 赵荣祥,男,教授,博导.     E-mail: rongxiang@zju.edu.cn
作者简介: 朱明磊(1985-), 男, 博士生, 从事电力电子变压器的研究.
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引用本文:

朱明磊,赵荣祥. 基于快速分布式主从控制的PCS系统[J]. J4, 2013, 47(11): 2031-2037.

ZHU Ming-lei, ZHAO Rong-xiang. Parallel convertor system with high speed distributed master-slave control method. J4, 2013, 47(11): 2031-2037.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2013.11.022        http://www.zjujournals.com/eng/CN/Y2013/V47/I11/2031

[1] 姚玮,陈敏,牟善科,等. 基于改进下垂法的微电网逆变器并联控制技术[J]. 电力系统自动化. 2009(6): 77-80.
YAO Wei, CHEN Min, MOU Shan-ke, et al. Paralleling control technique of microgrid inverters based on improved droop method [J]. Automation of Electric Power Systems, 2009(6): 77-80.
[2] 魏学良,戴珂,康勇,等. 三相三线并联型有源电力滤波器并联控制[J]. 电力系统自动化. 2007, 31(1): 70-74.
WEI Xue-liang, DAI Ke, KANG Yong, et al. A Parallel control strategy of three-phase three-wire shunt active power filters [J]. Automation of Electric Power Systems, 2007, 31(1): 70-74.
[3] 董亮,张尧,马皓,等. 微电网无互联线逆变器并联系统新型相位调节法[J]. 电力系统自动化. 2012(2): 52-57.
DONG Liang, ZHANG Yao, MA Hao, et al. A novel control strategy based on phase adjustment for microgrid parallel inverters without interconnection wires\
[J\]. Automation of Electric Power Systems, 2012(2): 52-57.
[4] 肖岚,李睿. 逆变器并联系统功率管开路故障诊断研究[J]. 中国电机工程学报. 2006, 26(4): 99-104.
XIAO Lan, LI Rui. Research on the open-circuit fault diagnosis of transistor in inverter paralleling system [J]. Proceedings of the CSEE 2006, 26(4): 99-104.
[5] 邓文浪,陈智勇,段斌. 提高双馈式风电系统故障穿越能力的控制策略[J]. 电机与控制学报. 2010, 14(12): 15-22.
DENG Wen-lang, CHEN Zhi-yong, DUAN Bin. Control strategy improved fault ride-through for doubly-fed wind-power generation system [J]. Transactions of China Electrotechnical Society, 2010, 14(12): 15-22.
[6] 张纯江,张文新,阚志忠,等. 一种基于前馈控制和争主同步的逆变器并联系统研究[J]. 电源世界. 2008(9): 39-42.
ZHANG Chun-jiang, ZHANG Wen-xin, HAN Zhi-zhong, et al. Research on inverter parallel system based on feed-forward control and indisputable master synchronization [J]. The World of Power Supply, 2008(9): 39-42.
[7] WU T F, WU Y E, HSIEH H M, et al. Current weighting distribution control strategy for multi-inverter systems to achieve current sharing [J]. IEEE Transactions on Power Electronics, 2007, 22(1): 160-168.
[8] 阚加荣,吴云亚,谢少军. 控制参数对并联逆变器性能的影响[J]. 电工技术学报. 2009(9): 120-126.
Han Yun-ya, WU Jia-rong, XIE Shao-jun. Design of control parameters for parallel-connected inverters [J]. Transactions of China Electro-technical society, 2009(9): 120-126.
[9] TSUNG P C. Common-mode ripple current estimator for parallel three-phase inverters [J]. IEEE Transactions on Power Electronics, 2009, 24(5): 1330-1339.

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