基于重复控制和状态反馈的三相逆变器最优预见控制

doi:10.19595/j.cnki.1000-6753.tces.201705

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Abstract In order to solve the problem of output voltage distortion in off-grid inverter with nonlinear load, a new compound control strategy is proposed in this paper, which is based on six-fold repetitive controller and optimal preview control. The feedback coefficients of state variables, repetitive controllers and instructions can be solved by given a control weighting matrix and output weighting matrix, and the system stability can be guaranteed. According to the state space equation of the controlled object and the six-fold frequency repetitive controller, the extended error equation is designed. The parameter design problem of the repetitive controller is transformed into a linear quadratic problem, and the control parameters are optimally adjusted through the Riccati equation. Finally, a 10kV·A prototype is built to verify the effectiveness of the proposed method.

Key words： Repetitive control optimal preview control off-grid inverter nonlinear load

Received: 29 December 2020

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TM464

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	Lan Ziran
	Hao Ruixiang
	Jiao Honglin
	You Xiaojie

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Lan Ziran,Hao Ruixiang,Jiao Honglin等. Optimal Preview Control of Three-Phase Inverter Based on Repetitive Control and State-Feedback[J]. Transactions of China Electrotechnical Society, 2022, 37(6): 1473-1481.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201705 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I6/1473

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