Analyzing the Effects of Micro-Source Disconnection on Interactive Stability of Grid and Micro-Grid with Series Inverters

doi:10.1002/tee.23337

	Analyzing the Effects of Micro-Source Disconnection on Interactive Stability of Grid and Micro-Grid with Series Inverters
	Zhang, Jinjing 2; Wang, Xinggui 2; Song, Wenqin 1,3; Yang, Weiman 2
刊名	IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING
	2021
卷号	16 期号:4 页码:618-624
关键词	micro‐ source disconnection cascaded inverters micro‐ grid grid‐ connected operation impedance stability impedance remodeling
ISSN号	1931-4973
DOI	10.1002/tee.23337
英文摘要	Owing to a lack of systematic mathematical models to represent the parameters related to micro-source disconnection, the stability of interaction between a grid and a micro-grid with series micro-source inverters (SMSI-MG) is difficult to analyze. In this study, the average ratio and the degree of imbalance of three-phase micro-source disconnection, denoted respectively by delta and epsilon, are defined, and the positive- and negative-sequence impedances of the SMSI-MG containing the two parameters are established using a combination of the harmonic linearization and the symmetrical component methods. Moreover, rules of the behavior of the SMSI-MG after micro-source disconnection as well as its mechanism of interaction with the grid are revealed by the impedance models. The results of analysis show that high-frequency harmonic resonance was generated around the carrier frequency when delta not equal 0, and both high- and low-frequency harmonic resonances were generated when both delta and epsilon increased in the interactive system. Furthermore, three SMSI-MGs containing five, 10, and 20 micro-sources in a single phase were simulated, and the results verified the correctness, feasibility, and advantages of the simplified analysis of the impedance models. These insights can be used to apply the corresponding control strategies in a timely manner according to the given conditions of micro-source disconnection to reduce the harmonic resonance and increase the stability of the SMSI-MG and the grid. The results of simulations verified the effectiveness of such a control strategy. (c) 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.
WOS研究方向	Engineering
语种	英语
出版者	WILEY
WOS记录号	WOS:000632885600016
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147411]
专题	电气工程与信息工程学院
作者单位	1.State Grid Gansu Elect Power Corp Econ, Lanzhou 730000, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Elect Engn & Informat Engn, Lanzhou 730050, Gansu, Peoples R China; 3.Tech Res Inst, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jinjing,Wang, Xinggui,Song, Wenqin,et al. Analyzing the Effects of Micro-Source Disconnection on Interactive Stability of Grid and Micro-Grid with Series Inverters[J]. IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING,2021,16(4):618-624.
APA	Zhang, Jinjing,Wang, Xinggui,Song, Wenqin,&Yang, Weiman.(2021).Analyzing the Effects of Micro-Source Disconnection on Interactive Stability of Grid and Micro-Grid with Series Inverters.IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING,16(4),618-624.
MLA	Zhang, Jinjing,et al."Analyzing the Effects of Micro-Source Disconnection on Interactive Stability of Grid and Micro-Grid with Series Inverters".IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING 16.4(2021):618-624.