基于新型正序提取器的并网与独立双模式无缝切换策略

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (2470 KB)
输出: BibTeX | EndNote (RIS)

摘要针对三相逆变器,在提出的一种电网电压正序提取器的基础上,设计了并网与独立双模式的无缝切换策略。在电网正常时,根据正序提取器所得到的正序分量计算电流给定;在电网异常时,由正序提取器保持恒频恒幅的负荷电压给定。在检测到电网恢复正常时,正序提取器又能很快地跟踪电网电压相位,使得负荷电压与电网电压同步,从而避免并网冲击。并网模式下的电流和独立模式下的电压控制均采用两相静止坐标系下的比例谐振控制器实现无静差跟踪。通过实验,验证了该文所提策略的有效性。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	刘红
	林明潮

关键词 ：分布式发电, 并网逆变器, 无缝切换, 正序提取器

Abstract：As the seamless transition between grid-tied and stand-alone modes is one of the technical challenges in distributed generation systems,a seamless transition approach based on the proposed positive component detector(PCD) for grid voltages is presented in this paper for three-phase utility-interactive inverters.The PCD provides the phase angle utilized for calculating the current reference in the grid-tied operation mode,while keeps the constant magnitude and frequency output used as the load voltage reference when the system outage.Once the grid has recovered,it can track the voltage phase so as to avoid the inrush when the inverter is reconnected to the grid.The current reference in the grid-connected mode and the voltage reference in the stand-alone mode are both controlled by the proportion resonance controller in the two phase static coordinate which has the capability of no static error tracking.Finally,the proposed strategy has been verified through experiments.

Key words： Distributed generation utility interactive inverters seamless transition positive component detector

收稿日期: 2014-11-20 出版日期: 2015-05-22

PACS:

TM464

基金资助:科技部科技型中小企业技术创新基金(11C26213304755)和浙江省科技计划(2011C21002)资助项目。

通讯作者: 刘红男,1985年生,硕士,工程师,研究方向为光伏、风电等分布式发电系统及其控制。

作者简介: 刘红男,1985年生,硕士,工程师,研究方向为光伏、风电等分布式发电系统及其控制。林明潮男,1983年生,工程师,研究方向为分布式能源并网接入及系统稳定性分析。

引用本文:

刘红, 林明潮. 基于新型正序提取器的并网与独立双模式无缝切换策略[J]. 电工技术学报, 2015, 30(9): 53-60. Liu Hong, Lin Mingchao. A Seamless Transition Strategy Between Gird-Tied and Stand-Alone Modes for Inverters Based on a New Positive Component Detector. Transactions of China Electrotechnical Society, 2015, 30(9): 53-60.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I9/53

[1] Jung S,Bae Y,Choi S,et al.A lowcost utility interactive inverter for residential fuel cell generation[J].IEEE Transactions on Power Electronics,2007,22(5):2293-2298.
[2] Yao Z,Xiao L,Yan Y.Seamless transfer of single-phase gridinteractive inverters between grid-connected and stand-alone modes[J].IEEE Transactions on Power Electronics,2010,25(6):1597-1603.
[3] 王赞,肖岚,姚志垒,等.并网独立双模式控制高性能逆变器设计与实现[J].中国电机工程学报,2007,27(1):54-59.
Wang Zan,Xiao Lan,Yao Zhilei,et al.Design and implementation of a high performance utility- interactive inverter[J].Proceedings of the CSEE,2007,27(1):54-59.
[4] 过亮,许爱国,谢少军.间接电流控制独立/并网双模式逆变器研究[J].电力电子技术,2008,42(4):36-38.
Guo Liang,Xu Aiguo,Xie Shaojun.research on indirect current control algorithm for grid-connected inverter[J].Power Electronics,2008,42(4):36-38.
[5] Kim H,Yu T,Choi S.Indirect current control algorithm for utility interactive inverters in distributed generation systems[J].IEEE Transactions on Power Electronics,2008,23(3):1342-1347.
[6] Arafat M,Palle S,Sozer Y,et al.Transition control strategy between standalone and grid-connected operations of voltage-source inverters[J].IEEE Transactions on Industrial Electronics,2012,48(5):1516-1525.
[7] Kwon J,Yoon S,Choi S.Indirect current control for seamless transfer of three-phase utility interactive inverters[J].IEEE Transactions on Power Electronics,2012,27(2):773-781.
[8] Balaguer I,Lei Q,Yang S,et al.Control for grid-connected and intentional islanding operations of distributed power generation[J].IEEE Transactions on Power Electronics,2011,58(1):147-157.
[9] 蒋冀,段善旭,陈仲伟.三相并网/独立双模式逆变器控制策略研究[J].电工技术学报,2012,27(2):52-58.
Jiang Ji,Duan Shanxu,Chen Zhongwei.Research on control strategy for three-phase double mode inverter[J].Transactions of China Electrotechnical Society,2012,27(2):52-58.
[10]邱麟,许列,郑泽东,等.微电网运行模式平滑切换的控制策略[J].电工技术学报,2014,29(2):171-176.
Qiu Lin,Xu Lie,Zheng Zedong,et al.Control method of microgrid seamless switching[J].Transactions of China Electrotechnical Society,2014,29(2):171-176.
[11]杨子龙,伍春生,王环.三相并网独立双模式逆变器的设计[J].电力电子技术,2010,44(1):14-16.
Yang Zilong,Wu Chunsheng,Wang Huan.Design of three-phase inverter system with double mode of grid-connection and stand-alone[J].Power Electronics,2010,44(1):14-16.
[12]Tran T,Chun T,Lee H.PLL-based seamless transfer control between grid-connected and islanding modes in grid-connected inverters[J].IEEE Transactions on Power Electronics,2014,29(10):5218-5228.
[13]Rodríguez P,Luna A,Teodorescu R,et al.A stationary reference frame grid synchronization system for three-phase grid-connected power converters under advese grid conditions[J].IEEE Transactions on Power Electronics,2012,27(1):99-112.
[14]吴晓波,赵仁德,胡超然,等.基于改进自适应陷波滤波器的锁相方法[J].电力系统自动化,2014,38(5):103-108.
Wu Xiaobo,Zhao Rende,Hu Chaoran,et al.A phase-locked method based on enhanced adaptive notch filter[J].Automation of Electric Power Systems,2014,38(5):103-108.
[15]赵新,金新民,周飞,等.采用降阶谐振调节器的并网逆变器锁频环技术[J].中国电机工程学报,2013,33(15):38-44.
Zhao Xin,Jin Xinmin,Zhou Fei,et al.A frequency-locked loop technology of grid-connected inverters based on the reduced order resonant controller[J].Proceedings of the CSEE,2013,33(15):38-44.
[16]陈明亮,肖飞,刘勇,等.一种正负序分离锁相环及其在并网型风力发电系统中的应用[J].电工技术学报,2013,28(8):181-187.
Chen Mingliang,Xiao Fei,Liu Yong,et al.A positive and negative-sequence detection PLL and its application in wind power generation syatem[J].Transactions of China Electrotechnical Society,2013,28(8):181-187.
[17]刘红,李赟,徐宗发.应用于三相并网逆变器的PR解耦控制器[J].电力电子技术,2013,47(4):14-16.
Liu Hong,Li Yun,Xu Zongfa.PR-Decouple controller applied in 3-phase grid-connected inverters[J].Power Electronics,2013,47(4):14-16.
[18]黄欣科,王环,王一波,等.光伏发电系统并网点电压升高调制原理及策略[J].电力系统自动化,2014,38(3):112-117.
Huang Xinke,Wang Huan,Wang Yibo,et al.Principle and strategies of voltage rise reguulation for grid-connected photovoltaic generation system at point of common coupling[J].Automation of Electric Power Systems,2014,38(3):112-117.