配电网多目标无功优化方法研究与应用

无功优化是电力系统安全经济运行的核心问题之一,电力系统无功优化规划是一个较复杂、多目标、非线性的混合规划.它的目标是在满足约束条件的前提下,使系统的某个指标或多个指标达到最优.文章在分析配电网无功优化所面临困难的基础上提出了一种优化方法,并结合一配电网实例利用PowerStation软件的优化潮流程序加以实现.计算结果表明,这种多目标无功优化方法及应用软件有利于提高配电网的无功优化水平.

Research and Applications of the Distribution Network Reactive Power Flow Multi-Objectives Optimization Method

In the security-constrained economic operation of a power system,the problem of reactive power flow(VAR) optimization is one of the key issues.The reactive power optimal planning of a power system is complicated,nonlinear,mixed,with multi-objectives involved.The objective of optimization is to make a power system reach the optimal status and to satisfy one or multiple objectives under some constraints.This paper provided an optimization method based on the analysis of difficulties in distribution network reactive power optimal planning.Using the optimal power flow program in PowerStation software,the optimization method has been realized and verified in a real distribution network.Calculation results indicated that the multi-objectives optimization method and application software were helpful to raise the level of distribution network reactive power flow optimization.