双馈电机初始并网的两种新方法

本文提出了两种双馈电机定子并网发电初始并网的方法,并实现无冲击电流初始并网.根据网侧电压与定子侧电压的关系,采用标量分析法,创新性地推导出能准确、直观的表现出满足并网条件的包络线,为双馈电机初始并网提供了理论依据.文中提出的空间矢量分析法,对网侧电压和定子侧电压空间矢量进行分析,使得合闸条件的分析过程得以简化.最后通过双馈电机并网实验验证了所设计方法的正确性和可行性.

Two new methods of the initial grid connection of the doubly-fed motor

Two kinds of methods of the initial grid connection of the doublely-fed motor stator grid generation were put forward, and the initial grid with no shock current was implemented. According to the relationship between the network voltage and the stator voltage, the scalar analysis was innovatively used to deduce the envelope that performs the grid conditions accurately , which provides a theoretical references for the doubly-fed motor initial grid. Space vector method was presented to analyze the network voltage and stator voltage space vector, and the analysis process of interconnection was simplified by using it. Finally the doublely-fed motor experiment was carried out to verify the correctness of this method.