基于多滑模变结构控制的三相PWM整流器非线性控制

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Abstract A multi-sliding mode variable structure control strategy is proposed combined input-output feedback linearization control with sliding mode variable structure control, according to the nonlinear characteristics of three-phase PWM rectifier. Voltage outer loop uses sliding mode variable structure control strategy based on the index reaching law, to ensure output voltage stable and provide a reference current instruction to the current loop. After building two-input and two-output affine nonlinear model of three-phase PWM rectifier, the current inner loop was linearized, and the inner current loop controller was designed by sliding mode control theory. Simulation model in Matlab/Simulink and a 15 kW experimental prototype were built . The results verify the control scheme. The rectifier using the proposed control scheme has such advantages as good system dynamic characteristics, strong robustness, strong anti-jamming ability, etc. At the same time, the drawback that input-output feedback linearization requires precise mathematical model is overcome.

Key words： Three-phase PWM rectifier input-output feedback linearization sliding mode variable structure control nonlinear control theory differential geometry

Published: 03 March 2016

PACS:

TM461

Fund:国家自然科学基金（512277034）和广州市珠江科技新星专项（2012J2200042）资助

Corresponding Authors: 陆翔男,1973年生,博士研究生,高级实验师,研究方向为多电平变换器及其非线性控制。E-mail: luxiang@gxu.edu.cn

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	Lu Xiang
	Xie Yunxiang
	Gui Cunbing
	Cheng Li

Cite this article:

Lu Xiang,Xie Yunxiang,Gui Cunbing等. Nonlinear Control of Three-Phase PWM Rectifier Based on Multi-Sliding Mode Variable Structure Control[J]. Transactions of China Electrotechnical Society, 2016, 31(4): 79-87.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I4/79

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