斯坦梅茨三相平衡理论在民用电网上的应用

我国民用电网中大多采用的是三相四线制系统,这种系统会有零序电流的存在。因此在进行平衡零序电流的时候则会比平衡三相三线制电路更复杂。文章将三相平衡理论作为核心思想,利用Y-变换平衡三相负荷,保障电力系统可以安全运行。此基础上,利用simulink建模仿真,证明该补偿理论不仅对所有三相四线制系统是适应的,还可以实现三相四线制系统的电流平衡化。

The three-phase four-wire system is mostly used in the civil power grid in our country,which will have zero sequence current.Therefore,it is more complex to balance the zero sequence current than the balanced three-phase three-wire circuit.In this paper,the three-phase balance theory is taken as the core idea,and the Y-transformation is used to balance the three-phase load to ensure the safe operation of the power system.On this basis,using simulink modeling and simulation,it is proved that the compensation theory is not only suitable for all three-phase four-wire systems,but also can realize the current balance of three-phase four-wire systems.