A magnitude-phase detection method for grid-connected voltage of wind power generation system

	A magnitude-phase detection method for grid-connected voltage of wind power generation system
	Zhang, Xiaoying1 ; Cheng, Zhizhuang 1; Wang, Xiaolan1 ; Wen, Zhiwei 2
	2012
会议名称	2012 International Conference on Modelling, Identification and Control, ICMIC 2012
会议录名称	Proceedings of 2012 International Conference on Modelling, Identification and Control, ICMIC 2012
页码	926-932
会议日期	June 24, 2012 - June 26, 2012
会议地点	Wuhan, China
出版者	IEEE Computer Society
摘要	In order to keep low-voltage ride-through under the grid faults for wind power generation system, the magnitude and phase information of the system grid-connected voltage must be detected fleetly and precisely so that the control subsystem of wind power generation system can tackle the faults. The conventional three-phase software phase-locked loop (SPLL) has a low speed of dynamic response because of the effects of negative-sequence and harmonic components. Also it can not exactly extract the fundamental positive-sequence magnitude and phase of three-phase voltage. This paper proposes a novel three-phase magnitude-phase detection method based on PQR transformation. The proposed method can decouple the fundamental positive-sequence component and negative-sequence component of three-phase voltage, and detect the magnitudes and phases of them respectively. The simulation results verify that the proposed method can overcome the shortcomings of conventional three-phase SPLL, track the magnitude and phase information of the fundamental positive-sequence voltage accurately and improve the speed of dynamic response effectively under the bad harmonic condition. The novel magnitude-phase detection method can be used to detect exactly the grid-connected voltage of wind power generation system. © 2012 Huazhong Univ of Sci & Tec.
关键词	Current voltage characteristics Dynamic response Electric power generation Electric power transmission networks Signal detection Wind power decouple Grid-connected operation Negative sequence components Phase detection Positive-sequence components PQR transformation Software phase locked loops Wind power generation systems
收录类别	EI
语种	英语
EI入藏号	20124015531399
EI主题词	Electric power system control
来源库	Compendex
分类代码	615.8 Wind Power (Before 1993, use code 611 ) - 706.1 Electric Power Systems - 706.1.1 Electric Power Transmission - 716.1 Information Theory and Signal Processing
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/116116
专题	电气工程与信息工程学院
作者单位	1.School of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2.Gansu Electric Power Research Institute, Lanzhou 730050, China
第一作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Zhang, Xiaoying,Cheng, Zhizhuang,Wang, Xiaolan,et al. A magnitude-phase detection method for grid-connected voltage of wind power generation system[C]:IEEE Computer Society,2012:926-932.