In view of the increasingly scarce land resources and the requirement of state grid for the integration

compactness and intellectualization of reactive compensation equipment

a multi-objective reactive power planning method for substation considering land cost is proposed in this paper. The bilayer planning model is established with minimum annual cost and minimum floor area as objective function

and Pareto optimal solution set is obtained with fast and elitist non-dominated sorting generic algorithm. Taking a city’s actual district power grid as an example

the set of Pareto optimal reactive power planning proposal is obtained by the use of the model and algorithm in this paper so to provide guidance and basis for the decision oftheplanner.