The invention relates to an enterprise
power grid reactive
power optimization method and
system based on comprehensive
benefit analysis, and belongs to the field of enterprise
power grid reactive
power optimization dispatching. An enterprise
power grid dispatching center overall coordinates generator excitation,
voltage regulation and reactive-load compensation equipment through a reactive
power optimization dispatching strategy with maximum comprehensive benefits as a target, the reactive
power output of a generator, the position of an on-load
transformer tap and the optimal switching state and switching capacity of the reactive-load compensation equipment are obtained through a self-adaption
genetic algorithm, and the selection of the investment time and place of the reactive-load compensation equipment and the investment capacity of the reactive-load compensation equipment are determined. The enterprise power grid reactive power optimization method and
system has the advantages that the reactive
power output of the generator, the compensation quantity of compensation equipment, the position of the
transformer tap, the cost of each adjusting method and the cost of active
power transmission losses are comprehensively considered; the historical data and the operating mode of
electric equipment are analyzed, a
load model is built, and the load of a
time frame to be optimized is predicated through the
load model.