Adaptive Master-Slave Control Strategy for Medium Voltage DC Distribution Systems Based on a Novel Nonlinear Droop Controller

doi:10.1109/TSG.2021.3104413

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	Adaptive Master-Slave Control Strategy for Medium Voltage DC Distribution Systems Based on a Novel Nonlinear Droop Controller
	Xie, Xingfeng 1,2; Quan, Xiangjun 1; Wu, Zaijun 1; Cao, Xiaoyong 1; Dou, Xiaobo 1; Hu, Qinran 1
刊名	IEEE TRANSACTIONS ON SMART GRID
	2021-11
卷号	12 期号:6 页码:4765-4777
关键词	Voltage control Control systems Switches Steady-state Power conversion Master-slave Converters MVDCDS N-1 contingency adaptive master-slave control nonlinear droop controller AC-DC power conversion small-signal model
ISSN号	1949-3053
DOI	10.1109/TSG.2021.3104413
英文摘要	To ensure accurate active power-sharing and an improved dynamic response to DC voltages in a medium voltage DC distribution system (MVDCDS), this paper presents an adaptive master-slave (AMS) control strategy based on a novel nonlinear droop (ND) controller. This ND controller, which is based on an improved sigmoid nonlinear function, is applied to the slave converter stations. An improved sigmoid function is designed to achieve a continuous and nonlinear droop curve. Through use of the proposed ND controller, the proposed AMS strategy can achieve seamless switching between the master-slave control and droop control modes automatically. Consequently, the AMS control strategy not only guarantees precise control of the active power in the steady state but also allows a superior dynamic performance to be achieved in the transient state, during which the system suffers from both large-scale disturbances and communication failures. The effectiveness and superiority of the proposed AMS control strategy are illustrated by theoretical analyses and validated by performing hardware-in-the-loop (HIL) tests in a +/- 10 kV MVDCDS.
WOS研究方向	Engineering
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000709090100020
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150094]
专题	兰州理工大学
作者单位	1.Southeast Univ, Sch Elect Engn, Nanjing 210000, Peoples R China; 2.Lanzhou Univ Technol, Coll Elect Engn & Informat Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Xie, Xingfeng,Quan, Xiangjun,Wu, Zaijun,et al. Adaptive Master-Slave Control Strategy for Medium Voltage DC Distribution Systems Based on a Novel Nonlinear Droop Controller[J]. IEEE TRANSACTIONS ON SMART GRID,2021,12(6):4765-4777.
APA	Xie, Xingfeng,Quan, Xiangjun,Wu, Zaijun,Cao, Xiaoyong,Dou, Xiaobo,&Hu, Qinran.(2021).Adaptive Master-Slave Control Strategy for Medium Voltage DC Distribution Systems Based on a Novel Nonlinear Droop Controller.IEEE TRANSACTIONS ON SMART GRID,12(6),4765-4777.
MLA	Xie, Xingfeng,et al."Adaptive Master-Slave Control Strategy for Medium Voltage DC Distribution Systems Based on a Novel Nonlinear Droop Controller".IEEE TRANSACTIONS ON SMART GRID 12.6(2021):4765-4777.