配电网潮流计算方法的改进与研究

针对传统的潮流计算法牛顿—拉夫逊法和快速分解法在计算配电网潮流时收敛效果的不理想及配电网的特殊结构,对各种潮流算法进行了比较,提出了解决配电网潮流计算的改进快速分解法及前推回代法。实例表明,这两种方法是一种实用的配电网潮流计算法。

Study and Application in Development of Fast-decoupled Power Flow and Backward-forward Sweep Method Calculating Power Flow in Distribution Network

The effects of convergence of the traditional power flow calculation methods.such as Newton-Raphson method and fast-decoupled power flow method are not perfect in calculating power flow in distribution network.The paper improves these traditional methods and uses them in the calculation in distribution network.considering the special construction of distribution network and comparing all kinds of traditional power flow calculation methods,the paper also proposes two other methods,fast-decoupled power flow method and back-forward sweep method,to deal with power flow calculation in distribution network.The former can handle much better the cases of multi-mains and multinet-holes.The latter can settle perfectly the issues of power flow calculation in radioactive distribution network because of its little influence of voltage initial value,fast calculation and less occupation system memory.When a calculation fails to converge,another one is changed over to solve the problem which the traditional power flow calculation method in distribution network is hard to converge.