110kV变电站多维度变参数无功配置方法

Reactive Power Allocation Method Considering Multi-dimensional Variable Parameters in 110kV Substation

针对110kV变电站现有无功补偿配置原则较为粗放的问题,即没有考虑变电站之间的差异性,仅笼统地给出了一个幅度较大的配置范围,本文提出一种110kV变电站多维度变参数无功配置方法。通过分析配电网无功配置需求影响因素并选取特征参数,在构建110kV片网典型结构模型的基础上,采用多维度变参数方式计算110kV变电站在不同情况下的无功配置率,分析评估无功配置率对特征参数的敏感度,形成110kV变电站以特征参数为参考量的差异化无功补偿配置方法。实例证明所提方法能方便、准确地规划出110kV变电站无功配置方案,易于推广应用。

As for the issue of extensive reactive compensation allocation principle in 100 kV substa- tion, which only gives generally larger allocation range without considering the difference between subst- ations. In this paper,a kind of reactive power allocation method of multi-dimensional variable parameters in 110 kV substation is proposed. The reactive power allocation rate of 110 kV substation at different situations is calculated by the multi-dimensional variable parameters method by way of analyzing the influence factor of reactive power allocation need of distribution grid and of selecting feature parameters and on the basis of constructing typical model structure of 110 kV sectional grid,the sensitivity of reac- tive power allocation rate to the feature parameters is analyzed and evaluated and differential reactive power compensation allocation method of 110 kV substation with the feature para-meters as reference qua- ntity. It is proved by the real example that the proposed method can plan the reac-tive power allocation plan of the 110 kV substation conveniently and correctly and is easy for promotion and application.