（本科生课程设计）主要实现的功能是设计一个恒压恒频正弦波逆变电源，具体参数如下：单相交流输入220V/50Hz，输出单相交流电压110V/50Hz,THD<5 ,负载为一般的阻感负载，功率1500W。利用matlab中simulink实现仿真功能。-The main functions of the (undergraduate curriculum design) is designing a constant voltage constant frequency sine wave inverter, specific parameters are as follows: single-phase AC input 220V/50Hz, output single-phase AC voltage 110V/50Hz, THD < 5　load general resistance inductive load, power 1500W. Matlab in simulink simulation capabilities.