基于快速开关的10kV三相一体化串补装置

Integrated 10kV Three-Phase Series Compensator Based on Fast Circuit Breakers

中国西部、北部地区人口分布稀疏,电力负荷分布范围广,供电半径大,电路电压质量不合格的问题较为普遍,特别是10k V农村电网供电末端电压低、线路损耗大等问题非常突出。传统的并联补偿并不能完全满足配电网负荷分布的要求,自耦调压器可靠性差、调压速度慢,普通串补装置占地多、造价高、维护管理不便。采用快速开关控制的三相一体化分布式串联补偿装置,体积小、成本低、免维护,通过实际应用,实证了其是改善线路末端电压质量、降低线损的较为经济且实用的选择方案。

China＇s western and northern regions are sparsely populated, the distribution range of power load is wide, the radius of power supply is large, and the problem of unqualified voltage quality is is common, especially in country grid, such as low terminal voltage, large loss of transmission line is seriously. Traditional shunt compensation cannot fit the load distribution perfectly, autotransformer is not stable enough and adjust response is slow. Ordinary series compensator need large area, high cost and inconvenience maintenance. Integrated three-phase distributed series compensator based on fast circuit breakers tend to be small, low cost and maintenance-free. The application practice confirmed that it is an economical, realizable and optional way to improve terminal voltage quality and decrease loss of transmission line.