An improved phasor estimation method based on matrix pencil and weighted least square

doi:10.1049/icp.2022.1303

	An improved phasor estimation method based on matrix pencil and weighted least square
	D. Lu1 ; Z. Luo 2; Y. Liu1 ; Y. Jia1 ; Y. Xie1 ; J. Zhao 3
	2022-07
会议录名称	18TH INTERNATIONAL CONFERENCE ON AC AND DC POWER TRANSMISSION (ACDC 2022)
卷号	2022
发表状态	已发表
DOI	10.1049/icp.2022.1303
摘要	This paper proposes an improved phasor estimation method based on matrix pencil and weighted least square to enhance the estimation accuracy during transients such as faults. First, the frequency components contained in the fault signal are approximately estimated by matrix pencil method. Afterwards, the primary frequency components are determined to construct the fault signal model according to the magnitude of reference factor. Finally, the unknowns within the fault signal are solved utilizing the weighted least square algorithm to obtain the phasors. Numerical experiments validate that the proposed method presents higher accuracy of phasor estimation compared to the existing phasor estimation methods, even with measurement noises. Moreover, the proposed method requires only a portion of a cycle to accurately calculate fundamental frequency phasors, and works with a relatively low sampling rate of 4k samples/sec.
会议地点	Online Conference, China
会议日期	2-3 July 2022
URL	查看原文
语种	英语
来源库	IEEE
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/354958
专题	信息科学与技术学院信息科学与技术学院_PI研究组_刘宇组创业与管理学院_PI研究组_陆丁组物质科学与技术学院_硕士生
作者单位	1.School of Information Science and Technology, ShanghaiTech University, Shanghai, China 2.State Grid Anhui Huangshan Power Supply Company, Huangshan, Anhui, China 3.Department of Electrical and Computer Engineering, University of Connecticut, Storrs, Connecticut, USA
第一作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	D. Lu,Z. Luo,Y. Liu,et al. An improved phasor estimation method based on matrix pencil and weighted least square[C],2022.