高参数直流转换开关电流转换仿真与试验研究

Simulation and Experimental Study on Current Commutation of High Parameter DC Transfer Switches

基于特高压直流输电工程对直流转换开关的技术规范,分析了直流转换开关的拓扑结构,对电流转换过程进行了仿真研究。提出以低频振荡的试验方法,设计并搭建试验回路,分析了试验方法的可行性,验证了开关的电流转换能力。研制的直流转换开关,已成功通过了直流电流转换型式试验。

According to the technical requirements of DC transfer switch in UHV DC transmission project,the topology structure of DC transfer switch is analyzed,and the current commutation process is simulated.The test method of low frequency oscillation is proposed,and the test circuit is designed and built.The feasibility of the test method is analyzed and the current commutation ability of the switch is verified.The developed DC transfer switch has successfully passed the DC current commutation type test.