DVR电压暂降检测新方法

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (530 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Voltage sag are one of the most serious problems related to power quality; the fast and accurate detection of voltage sag characteristics is the premise of voltage sag compensation. This paper proposes an improved method to estimate the characteristic parameters of single phase voltage sag. Firstly, the single phase voltage is shifted with an adjustable angle, and the perpendicular and orthogonal αβ vectors are constructed. Then, the voltage amplitude and phase angle are obtained by αβ-dq transform. With less calculation and limited noise and harmonic amplification, the method guarantees both steady precision and dynamic speed of sag detection. The simulation results show that the new method can significantly improve the compensation effect of dynamic voltage restorer.

Key words： Voltage sag detection adjustable angle simulation compensation

Received: 31 October 2011 Published: 25 March 2014

PACS:

TM712

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Qu Shuo
	Huang Chun
	Jiang Yaqun
	Zeng Zhaoxin

Cite this article:

Qu Shuo,Huang Chun,Jiang Yaqun等. A New Detection Method of Voltage Sag Applied in DVR[J]. Transactions of China Electrotechnical Society, 2013, 28(4): 234-239.

URL:

http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I4/234

[1] 肖湘宁. 电能质量分析与控制[M]. 北京: 中国电力出版社, 2004.
[2] 黄瀚, 杨潮, 韩英铎, 等. 配电网动态电压调节器控制策略的研究[J]. 电网技术, 2003, 26(1): 1-4.
Huang Han, Yang Chao, Han Yingduo, et al. Study on control strategy of dynamic voltage restorer for distribution network[J]. Power System Technology, 2003, 26(1): 1-4.
[3] 黄文清, 戴瑜兴. 基于Teager 能量算子的电能质量扰动实时检测方法[J]. 电工技术学报, 2007, 22(6): 154-158.
Huang Wenqing, Dai Yuxing. Real-time detection power quality of disturbances based on teager energy operator[J]. Transactions of China Electrotechnical Society, 2007, 22(6): 154-158.
[4] 鲁波涌, 黄文清. 结合小波变换和能量算子的电压暂降检测方法[J]. 电工技术学报, 2011, 26(5) 173-177.
Lu Boyong, Huang Wenqin. Hybrid wavelet-energy operator method for voltage sag detection[J]. Transactions of China Electrotechnical Society, 2011, 26(5): 173-177.
[5] 肖湘宁, 徐永海, 刘连光. 考虑相位跳变的电压凹陷动态补偿控制器研究[J]. 中国电机工程学报, 2002, 22(1): 64-69.
Xiao Xiangnin, Xu Yonghai, Liu Lianguang. Research on mitigation methods of voltage sag with phase-angle jump[J]. Proceedings of the CSEE, 2002, 22(1): 64-69.
[6] 杨亚飞, 颜湘武, 娄尧林, 等. 一种新的电压骤降特征量检测方法[J]. 电力系统自动化, 2004, 28(2): 41-44.
Yang Yafei, Yan Xiangwu, Louyaolin, et al. A new method to detect voltage sag characteristics[J]. Automation of Electric Power Systems, 2004, 28(2): 41-44.
[7] 赵国亮, 刘宝志, 肖湘宁, 等. 一种无时延的改进d-q 变换在动态电压扰动识别中的应用[J]. 电网技术, 2004, 28(7): 53-57.
Zhao Guoliang, Liu Baozhi, Xiao Xiangning, et al. Application of improved d-q transform without time delay in dynamic voltage disturbance identification [J]. Power System Technology, 2004, 28(7): 53-57.
[8] 张庆超, 肖玉龙. 一种改进的电压暂降检测方法[J]. 电工技术学报, 2006, 21(2): 123-l26.
Zhang Qingchao, Xiao Yulong. An improved detection method of voltage sag[J]. Transactions of China Electrotechnical Society, 2006, 21(2): 123-l26.
[9] John Godsk Nielsen, Michael Newman, Hans Nielsen, et al. Control and testing of a dynamic voltage restorer (DVR) at medium voltage level[J]. IEEE Transactions on Power Electronics, 2004, 19(3): 806-813.
[10] 周晖, 齐智平. 动态电压恢复器检测方法和补偿策略综述[J]. 电网技术, 2006, 30(6): 23-29.
Zhou Hui, Qi Zhiping. A survey on detection algorithm and restoring strategy of dynamic voltage restorer[J]. Power System Technology, 2006, 30(6): 23-29.
[11] 周晖, 齐智平, 何飚, 等. 单相DVR快速电压补偿控制的实现[J]. 电力系统自动化, 2007, 31(6): 61-65.
Zhou Hui, Qi Zhiping, He Biao, et al. Fast voltage compensation for a single phase dynamic voltage restorer[J]. Automation of Electrical Power Systems, 2007, 31(6): 61-65.
[12] 王同勋, 薛禹胜, Choi S S. 动态电压恢复器研究综述[J]. 电力系统自动化, 2007, 31(9): 101-107.
Wang Tongxun, Xue Yusheng, Choi S S. Review of dynamic voltage restorer[J]. Automation of Electric Power Systems, 2007, 31(9): 101-107.
[13] 周柯, 罗安, 等. 一种改进的ip-iq谐波检测方法及数字低通滤波器的优化设计[J]. 中国电机工程学报, 2007, 27(34): 96-101.
Zhou Ke, Luo An, et al. An improved ip-iq harmonic current detecting method and digital low-pass filter’s optimized design[J]. Proceedings of the CSEE, 2007, 27(34): 96-101.
[14] 袁兆祥, 郑建勇, 等. 有源滤波器中新型检测滤波器的设计[J]. 中国电机工程学报, 2008, 28(9): 45-49.
Yuan Zhaoxiang, Zheng Jianyong, et al. Design of a novel detection filter of active power filter [J]. Proceedings of the CSEE, 2008, 28(9): 45-49 .
[15] 刘云潺, 黄纯, 欧立权, 等. 基于dq变换的三相不平衡电压暂降检测方法[J]. 电力系统及其自动化学报, 2007, 19(3): 72-76.
Liu Yunchan, Huang Chun, Ou Liquan, et al. Method for unbalanced voltage sag detection based on dq transform[J]. Proceedings of the CSU2EPSA, 2007, 19(3): 72-76.