A study of flexible reactive power planning to cope with system multi-scenario operations

Reactive power planning involves numerous of uncertainty, and these uncertainties are scenarioed in this paper. Through this treatment, numbers of sciences is used to show the dynamic process of system development. On account of the traditional reactive power planning is lack of flexibility, an idea of flexible reactive power planning based on multi-scenario is proposed. It divides the objective function into initial investment and fluctuation investment. With a slight increase in the early planning of reactive power investment, it makes the planning more flexible to adapt to the future environment changes. Also, a multi-step optimal method which is used to deal with multi-scenario is proposed. The effectiveness and practicality of the proposed method are validated by the result of both IEEE 14-bus system and a certain actual distribution network with 1206-bus.