实时无功优化研究及其在线实现

Study on real-time reactive power optimization and its on-line application

分析了无功调节对系统的影响和无功补偿设备的调节特性,讨论了实时无功优化的应用特点及其在线应用的相关影响因素。建立了以有功网损最小为目标,电压与无功越限为罚函数的无功优化数学模型。然后,按EMS的在线应用要求设计了实时无功优化软件的体系结构,优化求解上采用了一种具有分解-协调效能的协同进化算法。最后用一个实际电网进行了算例分析,以验证其可行性与有效性。

The influences and characteristics of reactive power adjustment on power system are analyzed in this paper. Some specialties and effect factors of real-time reactive power optimization are also discussed. An optimal mathematic model of reactive power is founded according to minimization active power loss with penalty function of voltage and reactive power restriction. Software framework of real-time reactive power optimization is designed by the on-line application requirement of EMS. The co-evolution method is adopted to solve reactive power optimization. In the end, a simulation of actual electric power grid is performed for proving feasibility and validity.