煤矿低压配电系统中电力电子变压器研究

Study on Power Electronic Transformer in Low-voltage Power Distribution System of Coal Mine

提出了适用于煤矿井下低压配电系统中电力电子变压器的设计方案,介绍了电力电子变压器的工作原理,设计了变压器的拓扑电路和控制方法,利用MATLAB/Simulink仿真软件对拓扑电路进行仿真。结果表明该电力电子变压器能够输出恒定127 V交流电压。

The design scheme of power electronic transformer applied to low-voltage power distribution system in coal mine is put forward.And the working principle of power electronic transformer is introduced.The topology circuit and control strategy of this transformer are designed.With the help of the simulation software named MATLAB/Simulink,the simulation of topology circuit is accomplished.The simulation results reveal that the power electronic transformer is capable of outputting a constant 127 V AC voltage.