单相耦合电感型全桥软开关逆变器的仿真研究

摘要

零电压开关逆变器的操作范围受到电源与负载变化的很大限制.为了达到电源、负载宽范围的适应能力,本文采取了一种可变匝数比的耦合电感型全桥软开关逆变器.该逆变器可以应用于高功率场合,并可以显著地提高效率.详细介绍了耦合电感型软开关电路的操作原理与设计准则.采用Pspice对该软开关逆变器进行了仿真,验证了该软开关逆变器的优越性.%The operating range of a zero-voltage switched inverter is typically constrained by the source and load variation. A variable turns ratio coupled magnetic type soft-switching inverter for a wide-range source and load adaptabilityed are adopted. The inverter can be used in high power applications, and achieve high efficiency. The operating principle and design guideline are described in detail. Simulations are conducted with Pspice, and the results prove the superiority of the proposed soft-switching inverter design.