Design and real-time implementation of perturbation observer based sliding-mode control for VSC-HVDC systems

被引：45

作者：

Yang, B. ^{[1
,2
]}

Sang, Y. Y. ^{[2
]}

Shi, K. ^{[2
]}

Yao, Wei ^{[3
]}

Jiang, L. ^{[2
]}

Yu, T. ^{[4
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Elect Power Engn, Kunming 650504, Peoples R China

[2] Univ Liverpool, Dept Elect Engn & Elect, Liverpool L69 3GJ, Merseyside, England

[3] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China

[4] South China Univ Technol, Sch Elect Engn, Guangzhou 510641, Guangdong, Peoples R China

来源：

CONTROL ENGINEERING PRACTICE | 2016年 / 56卷

基金：

中国国家自然科学基金;

关键词：

Sliding-mode control; Perturbation observer; VSC-HVDC systems; HIL test; EXTENDED STATE OBSERVER; ADAPTIVE-CONTROL;

D O I：

10.1016/j.conengprac.2016.07.013

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper develops a perturbation observer based sliding-mode control (POSMC) scheme for voltage source converter based high voltage direct current (VSC-HVDC) systems. The combinatorial effect of nonlinearities, parameter uncertainties, unmodelled dynamics and time-varying external disturbances is aggregated into a perturbation, which is estimated online by a sliding-mode state and perturbation observer. POSMC does not require an accurate system model and only one state measurement is needed. Moreover, a significant robustness can be provided through the real-time compensation of the perturbation. Four case studies are carried out on the VSC-HVDC system, such as active and reactive power tracking, AC bus fault, system parameter uncertainties, and weak AC grid connection. Simulation results verify its advantages over vector control and feedback linearization sliding-mode control. Then a hardware-in-the-loop (HIL) test is undertaken to validate the implementation feasibility of the proposed approach. Crown Copyright (C) 2016 Published by Elsevier Ltd. All rights reserved.

引用

页码：13 / 26

页数：14

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