谐振武逆变器及其调速系统

Voltage-Source Inverter with Resonance-DC-Link and Variable-Speed Systems for A.C Motor

具有共振直流环节的电压型逆变器是在传统的PWM硬件开关电路上加一个共振环节,构成高频、无开关损耗电压型逆变器。这种电路与目前通用的PWM逆变器相比,具有频率高、噪音低、开关损耗小、系统体积小、电磁干扰小,有较好的输出波形和不需要阻尼电路等优点。

Adding a resonance link to the traditional PWM inflexible switching circuit, a voltage-source inverter of high frequency and no switching less was formed. Compared with current PWM inverters, this circuit has the advantages of high frequency, low noise, low switching-loss, little system volume, low electromagnetic interference, quite good output wareforms and no need of damping circuit.