摘要
在三相四线制条件下,采用三角形联结的补偿装置对不平衡电流的负序分量进行补偿,采用星形联结的补偿装置来平衡电流的零序分量,并且将功率因数提高到1。这样实现了不平衡负荷无功和电流的综合补偿。在理论推导的过程中,分析了其它补偿方案的不足之处,在本文补偿方案中针对他们的不足进行了优化设计。最后通过仿真,验证了本文的正确性和优良性。
For the three-phase four-wire system, the deltaconnection compensation devices are adopted to compensate the negative sequence current, the star-connection compensations are used to balance zero sequence current, and the power factor is improved to 1. The reactive power and current of three-phase unbalanced load are compensated. In the process of theory derivation, the defects of other compensation schemes are analyzed and optimized. Comparison of the optimal design and compensation principle are made with MATLAB simulation, which demonstrates that this theory and design are valid.
出处
《现代电力》
2007年第6期17-20,共4页
Modern Electric Power
关键词
三相四线制
不平衡负荷
负荷补偿
优化设计
three-phase four-wire
unbalanced load
load compensation
optimal design
