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简要介绍了三相逆变电源的正弦波脉宽调制(SPWM)控制技术,利用80C196单片机系统完成了三相115V400Hz逆变电源的设计,编制了不对称规则采样法控制算法的软件。
The control technology of sine wave pulse width modulation (SPWM) of three-phase inverter is introduced briefly. The design of three-phase 115V400Hz inverter is completed by using the 80C196 single-chip microcomputer system. The control algorithm of asymmetric regular sampling method is developed.