CAJ | 학술논문

针对某些山区的配电网有多个小水电站通过升压变直接接入网络的特点,在分析了当前几种适合10kV配电网线损计算的方法后,利用配电网络上局部实时量测信息,借鉴配电网的CIM拓扑模型、电网状态估计和负荷预测思想,提出了配电网主线/支线间隔模型和利用前推回代法计算理论线损的原理、步骤及方法.算法采用pl/sql语言编程,以一条10 kV馈线数据为例,计算其潮流及理论线损,并与平均电流法做比较,结果表明所提出的方法可行,满足精度要求,优于传统方法.
침대모사산구적배전망유다개소수전참통과승압변직접접입망락적특점,재분석료당전궤충괄합10kV배전망선손계산적방법후,이용배전망락상국부실시량측신식,차감배전망적CIM탁복모형、전망상태고계화부하예측사상,제출료배전망주선/지선간격모형화이용전추회대법계산이론선손적원리、보취급방법.산법채용pl/sql어언편정,이일조10 kV궤선수거위례,계산기조류급이론선손,병여평균전류법주비교,결과표명소제출적방법가행,만족정도요구,우우전통방법.
For the distribution network of some mountainous area,which is directly connected with a number of hydroelectric power stations through step-up transformers,its main line/branch interval model and the principle,steps and method of network loss calculation with the back/forward sweep method are proposed after analyzing several calculation methods applied in 10 kV power distribution network.It applies the local real-time measurements of distribution network and the distribution network CIM topology model,as well as the grid state estimation and load forecast.The algorithm is developed with pl/sql language.For the data of a 10 kV feeder,its power flow and theoretic network loss are calculated,showing its feasibility and better precision than that by the monthly average current method.