基于MN3304实现的重复控制正弦波逆变器研究

摘要

正弦波逆变器设计的关键是确保正弦波逆变器的输出波形质量、稳定性及其对各类负载的适应能力.采用重复控制技术实现正弦波逆变器周期信号跟踪控制,给出重复控制型正弦波逆变器稳定性分析与设计的新方法,利用模拟延时芯片MN3304实现了模拟重复控制器,并以此为校正环节实现对单相正弦波逆变器的重复控制.制作了线路进行实验研究,实验结果表明系统稳定性好,对整流性非线性负载保持了较高的波形质量,具有一定的应用价值.%To ensure its output waveform, stablity and adaptablity to sorts of loads is the key of sine waveform inverter design. A new method that is repetitive control sine waveform inverter analysis and design is introduced to repetitive control to realize follow-up control to sine waveform inverter periodic signal.Analog delay IC MN3304 is used to achieve analog repetitive controller to repetitive controlling of single-phase sine waveform diverter for the part of correction.The circuit is designed and the experimental results show that the system,which could keep a high waveform quality for rectified non-linear load, is of great stability and some practical value.