林跃欢,黄彦璐.配电网低电压治理方案动态评价方法研究[J].电测与仪表,2023,60(6):74-80. Lin Yuehuan,Lin Yuehuan.Research on Dynamic Evaluation Method of Low-voltage Governance Scheme in Distribution Network[J].Electrical Measurement & Instrumentation,2023,60(6):74-80.
配电网低电压治理方案动态评价方法研究
Research on Dynamic Evaluation Method of Low-voltage Governance Scheme in Distribution Network
In view of the lack of effective dynamic evaluation schemes for current low-voltage reconstruction projects of distribution networks, starting from the economics and governance effects of project reconstruction, and taking into account the dynamic growth of loads, the station-feeder-transformer-user(S-F-T-U) low-voltage refined evaluation system On the basis of this, the comprehensive voltage qualification rate, load-voltage sensitivity, effect cost ratio and other indicators are proposed to dynamically evaluate the distribution network reconstruction project. The comprehensive voltage qualification rate is used to characterize the level of voltage quality in the area, and to measure the effect of low voltage treatment before and after the project reconstruction. The load-voltage sensitivity characterizes the impact of load changes on voltage quality in the region, establishes the relationship between regional voltage deviation and load, and estimates the voltage quality after the project transformation. The effect-cost ratio is used as a dynamic evaluation index for project transformation. The effectiveness of the method has been verified through an example.
