摘要
建筑屋顶较为适合安装光伏及其所构成的直流微电网,有助于新能源消纳以及提高用电负荷的供电可靠性。由于供电营业厅具有负荷简单、用电需求与光伏发电特性一致的特点,结合偏僻地区负荷供电可靠性低的现状问题,提出以偏远地区的供电营业厅为载体的并网型直流微电网。首先总结了供电营业厅的用电特点,接着以乡镇供电营业厅为例,提出一种适用于楼宇的并网型直流微电网应用的试点场景,介绍了直流微网拓扑结构和直流微网能量路由器的功能、结构以及功率控制策略。最后通过仿真验证了直流微网控制策略的有效性。结果表明,所提直流微电网的控制策略在微网并网状态以及孤岛状态均能够有效运行。
The roof of the building is more suitable for installing photovoltaic and DC micro-grid formed by them,which helps to absorb new energy and improve the reliability of power supply for electric loads.Because the power supply business hall has the characteristics of simple load and power demand consistent with the characteristics of photovoltaic power generation,combined with the current problem of low load power supply reliability in remote areas,a grid-connected DC microgrid based on power supply business halls in remote areas as the carrier was proposed.Firstly,the power consumption characteristics of the power supply business halls were summarized,and a township power supply business hall was taken as an example,a pilot scenario for grid-connected DC microgrid applications suitable for buildings was proposed,and the DC microgrid topologic structure and the function,structure and power control strategy of DC microgrid energy router were introduced.Finally,the effectiveness of the DC microgrid control strategy was verified by simulation.The results show that the proposed control strategy of the DC microgrid can operate effectively in both the grid-connected state of the micro grid and the islanding state.
作者
陈志峰
梁海锋
张紫凡
王玕
王智东
罗艺华
Chen Zhifeng;Liang Haifeng;Zhang Zifan;Wang Gan;Wang Zhidong;Luo Yihua(School of Electrical Engineering,Guangzhou City University of Technology,Guangzhou Guangdong 510800,China;School of Electric Engineering,South China University of Technology,Guangzhou Guangdong 510641,China;Shaoguan Power Supply Bureau,Guangdong Power Grid Co.,Ltd.,Shaoguan Guangdong 512026,China)
出处
《电气自动化》
2022年第2期41-44,共4页
Electrical Automation
基金
广东电网有限责任公司韶关供电局“美丽乡村建设背景下智能中低压配电网技术研究示范”(GDKJXM20185771)——030200KK52180055。
作者简介
陈志峰(1974-),男,硕士,广东韶关人,高级工程师,研究方向:继电保护与控制技术;梁海锋(1997-),男,硕士研究生,广东肇庆人,研究方向:配网自动化;通信作者:张紫凡(1987--),女,硕士,河北石家庄人,副教授,研究方向:微电网运行与控制。
