一种双向功率电力试验电源

设计了一种双向功率电力试验电源,其拓扑由两级组成,前级为单相可逆PWM整流器,后级为双向全桥变换器。前后级半导体器件均为可控开关管,以实现功率双向流动。该试验电源应用范围广,并且可以一机多用,替代多种设备。其能将能量回馈电网,实现了绿色能源变换。分析了双向功率电力试验电源的工作原理和控制策略,并用Saber软件仿真进行了验证,仿真结果证明了分析的正确性和设计的可行性。

A Bi-Directional Power Supply for Testing

A bi-directional power supply for testing is designed in this paper. And a two-stage topology constituted with the front single-phase reversible PWM rectifier and the back bi-directional full-bridge converter is proposed. In order to reach the bi-directional power supply,all of the switches are controllable devices. This power supply has widely applications and multi-usages,witch can instead of a variety of devices. Green energy transformation is achieved by the function of feedback energy to the grid. The theory of operations and strategy of controls are detailed. And the simulation results are provided to verify the analysis of the converter and the feasibility of the design.