一种新型的零电压谐振极型逆变器

为实现一种结构简单，高效，高频，低的电压应力，易于控制的软开关三相逆变器。该文提出一种新型的三相谐振极逆变器，它可以实现逆变器主开关的零电压开通，辅助开关管的零电流开关，谐振电路功率小，与传统的辅助谐振变换极逆变器(ARCPI)不同，它避免了ARCPI使用的2个大电容，也没有中性点电位的变化问题。与三角形或星型谐振吸收逆变器(RSI)的三相谐振电路之间互相耦合不同，它的三相之间是互相独立的，这就使得逆变器易于应用各种控制策略。该文选取一相电路，对其工作原理进行了分析，给出了在不同工作模式下的等效电路图，仿真和实验结果都验证了原理的正确性。

A Novel Zero-Voltage Switching Resonant Pole Inverter

In order to realize a simple topology, high efficiency, high frequency, low voltage stress, easy to control soft switching three phase inverter, this paper introduces a novel resonant pole three phase inverter, which realized the zero-voltage switching of the main switches, zero-current switching of auxiliary switches and possesses the small power auxiliary circuit and full PWM capability. It avoids the bulk capacitor of the auxiliary resonant commutated pole inverter (ARCPI) and no center tap potential variation problem of ARCPI, unlike the delta or wye(Y) configured resonant snubber inverter, the inverter possesses the advantages of the decoupled resonation of each phase, it is easy to implement the various control schemes. The operation principle of one phase circuit has been analyzed and the equivalent circuits at different operation modes for both ZCS and ZVS operations are present. Simulation and experimental results are proposed to verify the theoretical analysis.