三相电路就是由对称三相电源和三相负载联接起来所组成的系统,本质上依然是正弦交流电路。工程上根据实际需要,可以组成Y-Y联接方式, Y-△ 联接方式,还有 △-Y 和 △-△ 联接方式,不同连接方式可以等效替换,但电路参数的关系互不相同。当组成三相电路的电源和负载都对称时,就称为对称三相电路。
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
利用等效电路,分析了三相异步电动机在不对称电压下的性能和对电机的危害。
By applying equivalent circuits, this paper has analyzed three-phase asynchronous motor property and the harm to generator under asymmetrical voltage.
基于上述三相交流电弧炉电路模型,分析了电流不对称和阻抗不对称对电弧功率的影响,并讨论了交流电弧炉三相电参数互相影响的复杂性。
The influences of the asymmetry of current and impedance on the arc voltage and power were analyzed, and the investigation complexity was also discussed.
应用推荐