摘要
分析了单相逆变器的模型,针对负载扰动,采用了输出电压外环、电容电流内环的双闭环控制方法,以提高逆变器的动、静态性能。逆变器的控制以单片机PIC16F877A为核心,采用正弦脉宽调制算法。实验结果表明,基于PIC单片机的单相SPWM逆变器具有较好的稳定性,控制精度高,满足逆变器输出电压质量的要求。
In this paper, the model of single-phase inverter is analyzed. Against load disturbance, the double closed loop control, which output voltage is used as out ring and the capacitor current as inner, is used to improve dynamic and static properties of the inverter. The control of inverter centers on PIC16F877A. The SPWM algorithms is used. The experiment results show that the single-phase SPWM inverter based on PIC SCM has good stability and high control precision. It meets the needs of output voltage quality.
出处
《电气自动化》
2012年第6期9-10,16,共3页
Electrical Automation
基金
河西学院2012年度青年教师科研基金项目(基金号QN2012-16)
