The Optimization Of The Reactive Power Flow In Power System

Active and reactive power optimization are very important for ensuring voltage quality, security and economics of power system. Fast computational speed is the main advantage of classical approach. Theoretical analysis, development of programs and verification by IEEE standard testing systems of active and reactive power optimization base on classical approach are conducted in this paperThe classical reactive power optimization method presented in this paper can consider all factors affecting reactive power flow such as generator terminal voltage, output of reactive power sources and transformer tap positions. Reactive power optimization of IEEE standard testing systems verifies the validity of the method.The paper admittance matrix method for calculating reactive incremental transmission losses are derived in this paper. This paper studies a kind of theory algorithm that the reactive power optimization in power system, namely the method of linear programming 。 The objective function of the proposed reactive power optimization method is the total power losses and the control variables include switch reactive power compensate capacity, generator bus voltages and transformer tap positions。 The paper used inward method in solving linear programming model, In order to make whole networking of system loss minimum.