SPWM逆变电源抗偏磁电路设计  

Design of Magnetic-bias Circuit in SPWM Inverter

作　　者：权建洲[1] 吴胜华[1] 吴保芳[1] 权晓红[2] 

机构地区：[1]空军雷达学院,武汉430019 [2]兰州工业高等专科学校,兰州730030

出　　处：《电气自动化》2003年第5期19-20,33,共3页Electrical Automation

摘　　要：针对单、三相SPWM逆变电源直流偏磁问题,提出了以各桥臂中点电压作为反馈来抑制直流偏磁的统一方法。具有电路简单,可靠性高和较好的通用性。可以产生较好的经济效益。By analyzing the causes of the magnetic-bias in the main transformer of the SPWM inverter, a new approach of avoiding magnetic-bias is presented. The bridge midpoint voltage is detected one by one and is used as feedback signal to adjusting voltage into sinusoidal ware. This method can be used both single-phase inverter and three-phase inverter.

关 键 词：SPWM 逆变电源 抗偏磁电路 电路设计 逆变器 

分 类 号：TM464[电气工程—电器]