考虑支路电压稳定指标的无功定价新模型

Reactive Power Pricing Model Considering Line Voltage Stability Index

提出了一种考虑支路电压稳定指标的无功定价新模型和方法。首先运用电路理论推导出可迅速寻找系统电压最薄弱支路的电压稳定指标。然后将该支路电压稳定指标作为约束条件,与传统无功定价模型结合,建立了考虑电压稳定的无功定价新模型。最后运用结合免疫算法的改进多中心-校正内点法实现问题求解。对多个标准测试系统进行了试算,计算结果表明,所提出的模型及算法有效、可行。

A method to evaluate the reactive power pricing considering line voltage stability index was proposed.A line voltage stability index which can find the weakest voltage branch was deduced using circuit theory.And the line voltage stability,index used as constraints condition,was introduced into standard reactive pricing model in order to consider its influence to reactive power price.An adaptive immune algorithm with nonlinear multiple centrality correnctions interior point method was used to solve the problem.Different standard power systems were used to illustrate the proposed model and algorithm.