基于DSP双闭环控制的单相逆变电源设计与实现
逆变电源spwm调制和闭环控制主要由中断程序 完成。中断程序流程如图5所示。进入中断后，首 先对电压和电流进行采样，将采到的数据进行调 理，计算电压的误差，经过pi调节后作为电流内环 的给定值，然后计算电流的误差值，经过比例调节 后生成spwm信号。
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