基于交流调节器的正弦波逆变器波形控制研究

瞬时值反馈型正弦波逆变器因其对非线性负载适应能力强,受到应用者的关注,是有前景的一种逆变器控制方式,但其控制器设计方法尚不如直流控制系统的控制器成熟,是当前急需解决的一个应用问题。文章首先针对线性时不变交流反馈控制系统的特点,讨论了直流控制系统的调节器不能直接用于交流控制系统的原因,然后给出了适用于线性时不变交流控制系统的交流调节器设计方法,以一个瞬时值反馈正弦波逆变器的控制回路设计问题为例进行了应用性研究,取得了预期的结果。

Research on Waveform Control of Sinusoidal Inverter Based on AC Regulator

Instantaneous feedback control method for sinusoidal inverter is a promising control method,which is paid close attention for its good adaptivity to nonlinear load.However,its controller design method is not as mature as DC control system,and this is an urgent problem in application.Firstly,aiming at the characteristic of the linear time-invariant ac feedback control system,the reason that the regulator of the dc control system cannot be directly used in the ac control system is discussed in this paper.Then,the ac regulator design method which is suitable for the linear time-invariant ac control system is proposed.Finally,a control loop design of the instantaneous feedback sinusoidal inverter is taken as an example,and the expected result is obtained.