高频链矩阵变换器(High Frequency Link Matrix Converter,HFLMC)作为一种变换级数较少的整流器,具有高传输效率,是一种具有良好发展前景的变换器。本文以HFLMC为研究对象,在双极性电流空间矢量调制策略(Bipolar Current Space Vector pulse width Modulation,B-C-SVM)基础上,分析调制策略的原理,提出一种简单的比例积分闭环控制方法,通过控制调制度来实现对输出电压的控制。实验波形验证了本文所提控制方法的有效性以及正确性。
英文摘要:
As a rectifier with fewer conversion series, high frequency chain matrix converter has high transmission efficiency, and it is a converter with good prospects for development. In this paper, based on the bipolar current space vector modulation strategy, the principle of the modulation strategy is analyzed, and a simple proportional-integral closed-loop control method is proposed to control the output voltage by controlling the modulation degree. The experimental waveforms verify the validity and correctness of the proposed control method.