CAJ | 학술논문

对内蒙古首个智能微电网--内蒙古电力科技园智能微电网进行了并网转离网试验，结果证明：当主网失电时，借助储能系统，微电网可以在7 s 内完成由并网转离网模式切换。作为网内扩容的前期研究，比较了12个月微电网内2种额定功率均为10 kW的光伏及风力发电系统的发电情况，前者月均发电量比后者高82.5%，因此建议后续微电网电源的接入选择应以光伏系统为主。设计了一种离网的电动汽车充电方案，并使用网内RLC负载模拟电动汽车进行30 min的充电试验，从功率平衡角度证实了该充电方案的可行性。
대내몽고수개지능미전망--내몽고전력과기완지능미전망진행료병망전리망시험，결과증명：당주망실전시，차조저능계통，미전망가이재7 s 내완성유병망전리망모식절환。작위망내확용적전기연구，비교료12개월미전망내2충액정공솔균위10 kW적광복급풍력발전계통적발전정황，전자월균발전량비후자고82.5%，인차건의후속미전망전원적접입선택응이광복계통위주。설계료일충리망적전동기차충전방안，병사용망내RLC부재모의전동기차진행30 min적충전시험，종공솔평형각도증실료해충전방안적가행성。
The study was centered around the first smart microgrid of Inner Mogolia, the Inner Mogolia Electric Power Science and Technology Park Smart Microgrid. The on-grid to off-grid experiment proved that when the microgrid was disconnected from the distribution grid, with the support of energy switching system, the microgrid′ s operation mode could be switched from on-grid to off-grid mode within 7 s. As the research for enriching microgrid′ s energy capacity, this article analysised two kinds of distributed generations(wind power system and photovoltaic system) during one year. The result showed that, in terms of both 10 kW generators, the photovoltaic system′ s energy output was 82.5%, higher than wind power system, making it evident that photovoltaic system may be more ideal source for the microgrid. An off-grid charging scheme for electrical vehicle was proposed, and then experiment was conducted in which electrical vehicle was replaced by RLC load aiming at protecting the vehicle. The charging experiments was lasted for half an hour, which was verified in the aspect of power balance.