三相不平衡对电网的影响及解决方法.

In view of the current three-phase unbalanced problems in the agricultural and urban networks, the operation characteristics and various indexes of the three-phase unbalance control in the radio distribution area are studied. Three kinds of common three-phase unbalance treatment schemes are proposed, including the phase switch type three-phase load automatic regulation device, the capacitive three-phase load automatic regulation device, and electronic three-phase load automatic regulation device. According to the different compensation principles, the three solutions compensate for the unbalanced three-phase current from the load side or the power side, and the purpose of load balancing compensation is achieved respectively. Through the detailed analysis of the working principle, the effect, the advantages and disadvantages and the application prospect of the three compensation devices, and the simulation of the compensation device, the validity and reliability of the three methods are proved, and the results can guide the related research and application work well. [ABSTRACT FROM AUTHOR]