基于供电成本最小的配电网重构

在电力市场环境下，针对多电源供电网络，各电源点购电价格不同时，重构方案不再依赖于传统的以网损最小为目标。为了考虑配电网系统的供电成本最小（效益最大）问题，提出了一种基于供电成本最小的配电网重构算法。结合考虑电源点购电价格差别的改进支路交换算法，使用近似网损代替精确网损，避免了使用复杂的启发式规则，能够迅速确定重构的网络拓扑，重构过程中无需进行潮流计算，降低了问题求解复杂度。算例结果表明所提算法简单实用，对寻找网络的经济运行结构具有参考意义。

Distribution Network Reconfiguration Based on Minimum Cost of Power Supply

Under the electricity market environment, when power supply of distribution network feed from several substations which power purchase prices are different, the optimal reconfiguration topology can not depend upon the object of minimum network power losses. This paper proposes a reconfiguration algorithm which considering the minimal power supply cost or maximal benefit else. Associate a refined branch-exchange algorithm which includes the differences of power purchase prices, substitute the actual network losses by approximate losses, and the use of complicated heuristic rules is avoided, network topology through the optimization can quickly confirmed. In this course, there is no need to calculate power flow, therefore the complexity of the problem can reduced evidently. The result of calculation example show the simplicity and utility of the proposed algorithm, also have suggestive meaning for finding economical operation structure of the network.