电力弹簧在电压暂降治理中的应用研究

Research on Voltage Sag Governance by Electrical Spring

电压暂降已经成为最严重的电能质量问题之一,为满足电网的分布式与精细化发展需要,本文将电力弹簧运用在电压暂降治理中。在对电力弹簧的工作原理进行阐述与理论推导的基础上,研究了电力弹簧的补偿策略,并搭建了仿真模型,模拟了电压暂降发生时,电力弹簧的补偿作用。仿真结果表明,电压暂降发生时,电力弹簧能够迅速的检测出电压暂降,对敏感负荷进行电压补偿并将暂降转移至非敏感负荷上。

Voltage sag has become one of the most serious power quality problems, to meet the distributed development and refinement of the power grid needs, electrical spring is applied to voltage sag governance in this paper. On the basis of elaborating and deriving working principle of electrical spring, this paper study on the compensation strategy of electrical spring, a simulation model is built to exam the effect when voltage sag happen. The result show that, electrical spring can detect voltage sag quickly when voltage sag happen, and critical load is compensated when the voltage sag is transferred to non-critical load at the same time.