CAJ | 학술논문

目前国内城市配电网的停电事件中预安排停电占据绝对多数,但现有的配电网可靠性理论评估却只考虑了故障停电,缺少对预安排停电影响的评估模型和方法。文中分析了预安排停电的建模特点、导致预安排停电的各类工程、检修项目的不同影响范围。在此基础上,将各类预安排停电项目分为4类停电事件,并分别给出对应的可靠性评估数学模型。模型用于电网规划时,还考虑了新出线网架信息不全给转供判断带来的问题并提出简化处理方法。以珠海市香洲区2010年的项目规划为算例的结果表明,基于项目分类的预安排停电影响的模型具有一定的实用性,适用于配电网可靠性评估。
목전국내성시배전망적정전사건중예안배정전점거절대다수,단현유적배전망가고성이론평고각지고필료고장정전,결소대예안배정전영향적평고모형화방법。문중분석료예안배정전적건모특점、도치예안배정전적각류공정、검수항목적불동영향범위。재차기출상,장각류예안배정전항목분위4류정전사건,병분별급출대응적가고성평고수학모형。모형용우전망규화시,환고필료신출선망가신식불전급전공판단대래적문제병제출간화처리방법。이주해시향주구2010년적항목규화위산례적결과표명,기우항목분류적예안배정전영향적모형구유일정적실용성,괄용우배전망가고성평고。
At present,the scheduled outages account for most of all the outages in the city distribution network,but the existing evaluation methods only take fault outage into account,while neglecting assessment models and methods for scheduled outage.The characteristics of the scheduled outage model and several types of construction/maintenance projects leading to scheduled outage and their impact range are analyzed first.Then,the projects are categorized into four sets based on their impact,with the mathematical model developed for each.The issue of the network structure uncertainty arising from new outlet feeders that brings difficulty to load transfer judgement is also considered in the proposed models.The planning project in Xiangzhou district of Zhuhai city is used as a real example,the results showing that the proposed scheduled outage model is effective in reliability assessment of distribution network.