【摘要】 本文对具有谐振直流环节的新型电压型逆变器及其交流调速系统进行了分析与研究。这种新型逆变器与普通逆变器相比,其突出特点是理论上可以实现无损耗开关,因此可以大幅度提高逆变器的开关频率,从而可实现逆变器高频化。这种逆变器具有噪音低、损耗小、重量轻、体积小,输出波形好且不需要吸收电路等优点。更多还原

【Abstract】 A new resonant DC link voltage-source inverter and its adjustable speed AC system are studied and analyzed in this paper. Compared with the regular voltage-source in- verter, the new inverter has the characters of realizing zero-switching-loss theoretically. Therefore, the inverter switching frequencies can be increased greatly, and then high-fre- quency of inverter can be realized. The inverter has the advantages of lower noise, lower loss, less volume, lighter weight, better output waveforms and without damping circuit.更多还原