提高中压配电网供电可靠性的措施及其成本/效益分析研究

对配电网可靠性评估的故障遍历方法和利用故障遍历事件集搜寻薄弱环节的方法进行了简要说明,而得到电网薄弱环节后就可制定相应的改进措施。为了对改进的措施进行评估,提出了因提高电网可靠性而发生的成本以及产生的效益的概念公式,在综合分析两者的基础上,引入了成本/效益比的概念来制定评价电网改造方案可行性和最优性的判据。最后对我国江西省某地区的县级实际中压配电网从四个方面提出了改进措施,同时利用上述判据对改进措施进行评估并得到最终的改进方案。

Measurement of improving the reliability of medium voltage power distribution system and its cost/benefit analysis

This paper explains the fault traversal algorithm of distribution system and how to find the fragile area using the fault affairs,then sets down corresponding measurements to improve the reliability of the system. In order to evaluate the measurements, it presents the cost and the benefit caused by adopting the measurements. Based on the above analysis, the cost /benefit ratio for the criterion of feasibility and optimization is put forward. In the end, this method takes up four measurements to a certain area of Jiangxi Province, the criterion above evaluates the measurements and gives the improved project.