改进Tabu搜索方法在无功优化中的应用

根据短期负荷预测的负荷曲线,将一天的负荷分成T个负荷水平时段,提取各时段内的典型负荷点,建立分时段无功优化数学模型.该模型以一天总的有功网损最小为目标,以潮流方程作为等式约束,以负荷电压、电容器容量以及投切次数等作为不等式约束.根据配电电容器投切的特点,对Tabu搜索方法做了具体的改进和实现.并对补偿电容器组分组投切的二进制编码和初值的选取进行了研究.算例表明改进的Tabu搜索方法是一种高效、快速的启发式搜索方法,很好地解决了配电网无功优化问题.

The Application of Improved Tabu Search Method in Reactive Power Optimization

According to the short-term forecasted load curve, the load of one day is divided into pieces,the typical load point in each period is drawn,and the mathematical model of divided period reactive power optimization is established.The aim of thismodel is the minum of one day's active power loss.The cur- rent tide takes the equality restraint,and the load voltage,the capacity of condenser as well as the number of switching take the inequality restraint.According to the characteristics of con- denser switching,Tabu Search method is concretely improved and realized.How to generate the binary code of compensation condenser and how to chose initial value are researched.The example shows that the impoved Tabu Search method is a high- efficient,fast heuristic search method.It can solve distribution networks reactive power optimization very well.