摘要
介绍了车载单相正弦脉宽调制(SPWM)IGBT 逆变器的基本结构方案,以车用24V 直流电源为逆变器输入,变换得到50 Hz/220 V 交流电。该方案采用中间直流环节的高频变压器式逆变电源系统结构,它由高频逆变、高频变压器隔离升压、整流滤波、高频 SPWM 逆变和输出滤波组成。对逆变器的控制及保护电路也在作了详细的介绍,并给出试验结果。
This paper presents a design scheme of single-phase sine pulse wide modulation(SPWM)IGBT inverter for mobile vehicle. This inverter converts the 24V DC battery power supply to 50Hz/220V alternative current source,This design scheme adopts high fre- queney transformer inverter power system structure with DC-link in middle.It consists of high frequency inverter,isolation and voltage transformer,rectifier with filter,high frequency SPWM inverter and output filter.The control and protection circuits are intro- duced in detail in this paper,and the experiment is also presented.
