基于可信度的电缆配电网不良数据辨识与修正

Bad data identification and correction based on confidence level for cable power distribution system

根据流过一条母线的各个开关的负荷间的平衡约束以及流过直接相连开关的负荷间的平衡约束,提出可信度分析的3个原则,建议数据质量评价步骤。在此基础上,提出一种基于可信度的配电网不良数据辨识与修正方法,根据节点数据的可信度差异对不良数据进行修正,以配电网数据的整体可信度最大为目标。实例结果表明:在仅有少量不良数据的情况下,所提方法可以对不良数据进行修正,达到提高数据可信度的目的。

According to the load balance constraint among the switches ot a bus and mat among directly connected switches ,three principles of confidence level appreciation are proposed and the procedure of data quality evaluation is suggested, based on which,a method of bad data identification and correction based on confidence level is proposed for power distribution network. It corrects bad data according to the confidence level difference of bus data and takes the maximum overall confidence level of distribution network data as its objective. Results of case study show that,when the confidence level is improved. there are only a few bad data,they are corrected and