作　　者： ; ; ; ;

机构地区： 西安交通大学

出　　处： 《陕西电力》 2007年第11期6-9,共4页

摘　　要： 根据地区电网的实际管理模式,提出了基于变电站九区调节的地区电网分层无功优化方法:将地区电网分成次输电电网和配电网。先对次输电网进行无功优化时,将配电网等效为负荷,此时控制变量少,采用传统算法可以快速求解。在此基础上,再采用九区图方法调整配电网的无功电压,进行迭代,逐层进行无功优化直到问题收敛。实际算例表明,这种方法优化了地区电网的运行,提高了无功优化的计算速度,并且更符合实际电网的管理模式,为地区电网无功电压调节提供了有益参考。 This paper presents the distributed solution based on nine-zone diagram method for reactive power optimization in regional system. First, the regional system is divided into a sub-transmission system and distribution system. While sub-transmission system is optimized, distribution system is equivalent to load. This will reduce control variables, so the optimization problem can be solved by traditional method quickly. Then, the voltage/var of distribution system can be modulated by nine-zone diagram. Repeated this process until the prohlem optimization converges. Case study shows that： the proposed method optimizes the system operation and increases calculation speed. Furthermore, it matches with the practical management mode, and can provide some useful reference for reactive power adjustment.

关 键 词： 无功优化 九区图 电网分层 遗传算法

领　　域： [电气工程]