摘要
本文概述了UPS由模拟控制改为数字控制的意义。介绍了逆变器的数字PID控制、重复控制、无差拍控制等三种数字控制方式的原理。详细推导了重复控制、无差拍控制UPS的数学模型和控制方法。针对无差拍控制的鲁棒性问题和控制延时问题,提出了相应的解决方案。最后简要介绍了滑模变结构控制和模糊控制的原理,指出了数字控制技术发展的趋势。
In this paper, the significance of the digital control for UPS is summarized. Several digital control schemes for UPS inverter- digital PID control, Deadbeat control and repetitive control- are introduced, and the principles and control laws of deadbeat control and repetitive control are deduced in detail. Several schemes are introduced to tackle the problem of robustness and control delay of deadbeat control. Finally sliding-mode control and fussy control are introduced, and the development trend of digital control technology is pointed out.
出处
《电力电子》
2006年第3期19-23,共5页
Power Electronics
