摘要
给出了一种将低压直流电转换为220V/50Hz交流电的方案,阐述了电路的基本结构及控制策略。逆变控制芯片采用Freescale单片机MC9S08AC16,利用其中心对齐PWM模式产生SPWM,在不同类型负载下实现了低谐波系数、低负载调整率的纯正弦波输出。制作了实验样机并对方案进行了验证。
This paper gives a solution about converting low DC voltage to 220VAC of 50Hz, and describes the basic structure and control strategy of this circuit. The chip MC9S08AC16 of Freescale company is adopted on inverter con- trol, using it＇ s center - aligned PWM mode to generate SPWM, and pure sine wave output of low harmonics and low load regulation is realized at different types of load. A experimental prototype has been designed and the scheme is validated.
出处
《电测与仪表》
北大核心
2013年第1期106-111,共6页
Electrical Measurement & Instrumentation
