A reactive power compensation method based on tracing the power flow and loss function of power system

This paper proposes a new method for locating and sizing of reactive power compensation of power system. The proposed method is based on the reactive power flow tracing. Defines the power loss distribution coefficient, which has direct response distribution of reactive power sources with clear physical concepts. Utilize this new factor to determine the points of compensation. Calculate the second order loss sensitivity, combined with the principle of most economical operation, to determine the optimal capacity. Application of proposed method is useful for the optimization of reactive power distribution and the reduction of power loss. The simulation result of the IEEE 39-bus system shows the correctness and effectiveness of the proposed method.