Adaptive coordinated passivation control for generator excitation and thyristor controlled series compensation system |
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| Affiliation: | 1. Key Laboratory of Integrated Automation of Process Industry, Ministry of Education, School of Information Science and Engineering, Northeastern University, Shenyang 110004, PR China;2. Department of Information Engineering, Research School of Information Sciences and Engineering, The Australian National University, Canberra ACT 0200, Australia;3. Department of Computer Engineering, Dogus University, Kadikoy, TR-34722 Istanbul, Turkey;4. Faculty of Electrical and Information Engineering, SS Cyril and Methodius University, MKD-1000, Skopje, Republic of Macedonia;1. Signals and Systems, Uppsala University, Uppsala, Sweden;2. Centre for Complex Dynamic Systems and Control, The University of Newcastle, NSW 2308, Australia;1. Key Laboratory of Dependable Sevice Computing in Cyber Physical Society, Ministry of Education, China;2. School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, 639798, Singapore;3. School of Automation Science and Electrical Engineering, BeiHang University, Beijing, China;4. School of Automation, Chongqing University, Chongqing 400044, China |
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| Abstract: | The problem of transient stability for a single machine infinite bus system with the generator excitation and thyristor controlled series compensation (TCSC) is addressed via the coordinated passivation method. The system does not need to be linearized. Two types of uncertainties, namely, the damping coefficient uncertainty and the modeling error of TCSC, are considered. First, an excitation control input and a parameter updating law are obtained simultaneously via adaptive back-stepping and Lyapunov methods to achieve stability of the zero dynamics subsystem. Then, a reactance modulated input is derived to ensure the feedback passivity of the whole system, based on which a stabilizing controller for the closed-loop system is designed. Simulation results show that the proposed controller produces better transient performance than the conventional direct feedback linearization controller. |
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