独立调压调频单相正弦波变频电源的一种新型控制策略的研究

Research on A Novel Control Strategy of Single-phase Sine-wave Frequency Variation Power Supply

重复控制方法具有良好的稳态输出特性和鲁棒性能,尤其是在非线性负载系统中,它能在很大程度上消除输出波形的谐波成分,因而重复控制方法在逆变电源中的应用备受关注。但重复控制方法也有动态响应速度较慢的问题,根据本设计的具体要求,本文提出了一种基于重复控制和数字PID控制的新型控制策略,并在Matlab/Simulink软件环境下建立了独立调压、调频的单相正弦波变频电源的闭环控制系统的仿真模型。实验结果表明,该控制方法是可行、有效的。

This paper gives a novel control strategy based on a repetitive controller and a digital PID controller, and provides a Matlab/ simulink emulational model of a single-phase sine-wave variable frequency power supply which can be independentily variated by volt and/or frequency. The experimental results verify that the control strategy is feasible and valid.