In view of such issue as coordination and optimization grouping of substation capacitor bank and dynamic reactive power compensation device

a kind of new reactive power optimization configuration method based on overshoot rate index is proposed.The substation reactive power optimization planning index system is constructedand the contradiction between the reactive power configuration group numbers and the single group capacity is coordinated by the reactive overshoot rate index.The reactive power planning grid model and mathematical model are set up and the improved genetic algorithm is used to optimize and obtain the optimal reactive power configuration capacity.Voltage and reactive sensitivity analysis is performed on the compensation point to obtain the size of the reactive overshoot rate indicator.The recommended reactive power configuration scheme of capacitor bank coordinated with static synchronous compensator guided by reactive overshoot ratio is obtained.Moreover

the adjustment scheme using only capacitor banks is given.The effectiveness and practicability of the proposed method are demonstrated by way of comparing with other three existed methods.