CAJ | 학술논문

将用户报装容量纳入接线模式研究过程，建立了供电能力“死区”模型。对用户报装容量概率分布条件下的线路期望负荷、期望接入用户数进行了分析，并以此为基础提出了计及“死区”影响的线路负载率、变电站出线间隔利用系数和用户平均占用出线间隔数等指标的计算方法。实际算例表明，该方法能够有效降低“死区”造成的不利影响，大幅度提升馈线实际接入能力和电网资源实际利用率，对提高配电网规划建设的经济性具有较强的指导意义。
장용호보장용량납입접선모식연구과정，건립료공전능력“사구”모형。대용호보장용량개솔분포조건하적선로기망부하、기망접입용호수진행료분석，병이차위기출제출료계급“사구”영향적선로부재솔、변전참출선간격이용계수화용호평균점용출선간격수등지표적계산방법。실제산례표명，해방법능구유효강저“사구”조성적불리영향，대폭도제승궤선실제접입능력화전망자원실제이용솔，대제고배전망규화건설적경제성구유교강적지도의의。
Considering the influence caused by user’ s stepwise capacity in mid-voltage distribution network, the dead zone model of power supply capability, which reflects the shortfall in actual load supply capability compared by the ideal one, is presented in this paper. Expectation of load and number of users in one feeder is firstly ana-lyzed based on the probability distribution of user’ s capacity. According to the results above, this paper also gives out the formulation of several indices by using dead zone model, such as load ratio of feeder, utilization ratio of in-tervals in substation and average interval occupation per user, which are used to evaluate the efficiency of different types of connection mode in mid-voltage distribution network. The final example shows that, in order to promote the operational economy, this kind of method can greatly enhance the access capacity of one feeder and resource utiliza-tion in distribution network, meanwhile decreasing the negative impact caused by dead zone.