Enhanced nonlinear robust control for TCSC in power system
type: Item
instance of: scholarly article
title: Enhanced nonlinear robust control for TCSC in power system
zbMATH Open document ID: 1426.93073
DOI: 10.1155/2018/1416059
author: Chao Zhang
author: Xing Wang
author: ZhengFeng Ming
author: Zhuang Cai
published in: Mathematical Problems in Engineering
publication date: 2019-02-08T00:00:00Z
review text: Summary: This paper proposes an enhanced robust control method, which is for thyristor controlled series compensator (TCSC) in presences of time-delay nonlinearity, uncertain parameter, and external disturbances. Unlike conventional adaptive control methods, the uncertain parameter is estimated by using system immersion and manifold invariant (I\&I) adaptive control. Thus, the oscillation of states caused by the coupling between parameter estimator and system states can be avoided. In addition, in order to overcome the influences of time-delay nonlinearity and external disturbances, backstepping sliding mode control is adopted to design control law recursively. Furthermore, robustness of TCSC control subsystem is achievable provided that dissipation inequality is satisfied in each step. Effectiveness and efficiencies of the proposed control method are verified by simulations. Compared with adaptive backstepping sliding mode control and adaptive backstepping control, the time of reaching steady state is shortened by at least 11\% and the oscillation amplitudes of transient responses are reduced by at most 50\%.
Mathematics Subject Classification ID: 93B35
Mathematics Subject Classification ID: 93C40
Mathematics Subject Classification ID: 93B12
Mathematics Subject Classification ID: 93C10
zbMATH DE Number: 7018482
zbMATH Keywords: nonlinear robust control
zbMATH Keywords: power system
zbMATH Keywords: backstepping sliding mode control
zbMATH Keywords: manifold invariant adaptive control
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2018/1416059
OpenAlex ID: W2799439732
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description: scientific article; zbMATH DE number 7018482