江苏电网220kV变电站受电力率合格率考核

首先介绍了江苏电网对220 kV变电站受电力率的考核办法;其次结合调度中心能量管理系统（EMS）保存的历史运行数据对该考核办法进行了分析,指出了其不足之处;最后提出了更为完善的考核标准。该标准考虑了无功功率倒送、电压合格区间和低功率因数情况,可为无功电压优化运行和管理提供参考。

Analysis and Suggestions of the Assessment Method of Power Factors at 220 kV Substations in Jiangsu Power Grid

The assessment method of power factors at 220kV substations in Jiangsu Power Grid is introduced in the paper.This method is then analyzed along with some operational data saved by the energy management systems（EMS） at the dispatch center.Several drawbacks of the assessment method are pointed out.Finally,a more comprehensive assessment standard is proposed.The proposed standard considering reverse reactive power flow,qualified voltage interval and low power factor situations can be used as reference for the optimization of reactive power and voltage management in the future.