CAJ | 학술논문

分布式电源并网对配电网有很大影响，包括电压水平、故障水平、线损、安全性、网络可靠性等方面，且其影响程度与分布式电源的容量和安装位置密切相关。本文基于径向式配电网、分布式电源的功率模型和恒功率静态负荷模型，分析和评估当两个等效的分布式电源系统同时并入简单径向配电网时，配电网线损的变化情况。文中，通过搭建理想模型，得出量化线损变化率的具体计算公式并对模型结果进行评述和讨论，将对未来提高线路输电效率的研究和保障配电网安全运行发挥重要作用。
분포식전원병망대배전망유흔대영향，포괄전압수평、고장수평、선손、안전성、망락가고성등방면，차기영향정도여분포식전원적용량화안장위치밀절상관。본문기우경향식배전망、분포식전원적공솔모형화항공솔정태부하모형，분석화평고당량개등효적분포식전원계통동시병입간단경향배전망시，배전망선손적변화정황。문중，통과탑건이상모형，득출양화선손변화솔적구체계산공식병대모형결과진행평술화토론，장대미래제고선로수전효솔적연구화보장배전망안전운행발휘중요작용。
The incorporation of the distributed generation will bring about great influences on distribution network ,including voltage levels ,the fault level ,power loss ,network reliability and so on .At the same time ,the influence degree is closely related to the installation location and the capacity of distributed generation .Based on the simple case of a radial distribution feeder with concentrated load and distributed generator ,this paper analyzes and evaluates the change of line loss for the dis-tribution network when two equivalent DGs are incorporated into a simple radial distribution feeder .The quantitative calcula-tion formula of line loss rate is provided through building an ideal model and then the model is reviewed and discussed , which is significant to improve line efficiency and ensure the safety operation of power distribution network .