As for the issue of extensive reactive compensation allocation principle in 100kV substation

which only gives generally larger allocation range without considering the difference between substations. In this paper

a kind of reactive power allocation method of multi-dimensional variable parameters in 110kV substation is proposed. The reactive power allocation rate of 110kV 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 110kV sectional grid

the sensitivity of reactive power allocation rate to the feature parameters is analyzed and evaluated and differential reactive power compensation allocation method of 110kV substation with the feature para-meters as reference quantity. It is proved by the real example that the proposed method can plan the reac-tive power allocation plan of the 110kV substation conveniently and correctly and is easy for promotion and application.