A study on reliability of power customer in distribution network

[摘要] The existing power supply reliability index system is oriented to power system without considering actual electricity availability in customer side. In addition, it is unable to reflect outage or customer's equipment shutdown caused by instantaneous interruption and power quality problem. This paper thus makes a systematic study on reliability of power customer. By comparing with power supply reliability, reliability of power customer is defined and extracted its evaluation requirements. An indexes system, consisting of seven customer indexes and two contrast indexes, are designed to describe reliability of power customer from continuity and availability. In order to comprehensively and quantitatively evaluate reliability of power customer in distribution networks, reliability evaluation method is proposed based on improved entropy method and the punishment weighting principle. Practical application has proved that reliability index system and evaluation method for power customer is reasonable and effective.

[发布机构] South China University of Technology, School of Electric Power, Guangzhou; 510640, China^1

[效力级别] 电工学

[关键词] Improved entropies;ITS evaluation;Power customers;Power quality problem;Power supply reliability;Reliability Evaluation;Reliability Index;Systematic study