基于高压配电网主馈线分段开关配置的可靠性指标优化求取方法研究

Research on Reliability Index Optimization Method Based on Sectional Switch Configuration of Main Feeders in High Voltage Distribution Network

针对传统故障遍历法运算高压配电网主馈线分段开关配置的可靠性指标过程中,存在的成本高以及精确度差的弊端。提出基于区间融合故障检索法的高压配电网主馈线分段开关配置的可靠性指标优化求取方法 ,该种方法先采用广度优先搜索法将开关当成边界完成主馈线的分区操作,再通过故障检索法获取四种故障类型,按照网络的拓扑关系和区间的相关干扰状态,获取各区间内部故障指标、区间子网故障指标和区间外网故障指标三种可靠性指标,这些可靠性指标之和则是该区间的年总故障指标。将可靠性指标转化成经济指标后,采用贪婪方法实现分段开关的优化配置。实验结果说明,采用所提方法获取的可靠性指标更加优秀,在该可靠性指标下进行分段开关配置,可增强高压配电网的可靠性和经济性。

It has the disadvantages of high cost and poor accuracy in the reliability index of the distribution of the power distribution network of the main feeder in the main feeder line of the high voltage distribution network of the traditional fault.Fault retrieval method based on interval fusion of high voltage distribution webmaster feeder section switch configuration optimization method is put forwarol to calculate reliability index.The method uses breadth-first search method,at first switch as a boundary to complete the main feeder partition,and then through the fault retrieval method for four kinds of fault types.According to the network topology and interval correlation jamming condition,it obtains the interval internal fault indicators,subnet fault indicator and interval network fault indicators three reliability index,the reliability index is the sum of the area between the annual total failure indicator.After conversion of reliability index into economic indexes,the optimal allocation of segmentation switch is realized by greedy method.The experimental results show that the reliability index obtained by the proposed method is better,and the configuration of the segmented switch under the reliability index can enhance the reliability and economy of the high voltage distribution network.