针对双主动桥DC-DC变换器(DAB)的模块化直流变压器,我公司在新型双有源DC-DC拓扑直流变压器进行设计应用,开展了适用于IGCT-Plus作为模组开关器件的直流变压器试验,实现不同电压等级的直流系统的互联,为不同直流负荷提供稳定的直流电压,试验中该直流变压器存在各支路电流长期不平衡流动,会严重影响直流变压器及整个电力系统的长期稳定运行。根据以往工程经验,通过加装均流磁环可对直流变压器低压侧各支路进行均流,均衡三条并联支路的输出特性,防止某一路长期电流应力过大,造成器件老化损坏 ...
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