摘要
本文建立了PWM逆变器的数学模型。介绍了重复控制理论,为了改善逆变器波形质量,提出了一种基于改进型重复控制的单相逆变器系统的设计。采用DSP实现了数字闭环控制方案,设计了系统硬件和软件,并进行了实验。实验结果证明带重复补偿的逆变系统波形质量好,精度高,输出电压波形畸变率小;该控制系统既有较好的稳态性能,又有较快的响应速度。
This paper establishes a mathematical model of PWM inverter and introduces repetitive control theory.In order to improve the quality of inverter waveform,a modified repetitive control system based on single-phase inverter is proposed.Using DSP,it realizes digital closed-loop control,and designs system＇s hardware and software experiments.Experimental results show that the inverter system with a repeat compensation has good waveform quality,high precision and.low distortion output voltage waveform.The control system has both good static performance and fast response.
出处
《船电技术》
2011年第1期1-5,共5页
Marine Electric & Electronic Engineering
