| 基于母线电压分层的直流微网系统协调控制 |
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| 引用本文： | 林其友,蒋文良,李媛媛,汪冬冬,牟思南. 基于母线电压分层的直流微网系统协调控制[J]. 中国电力, 2022, 55(2): 166-171,180. DOI: 10.11930/j.issn.1004-9649.202012071 |
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| 作者姓名： | 林其友 蒋文良 李媛媛 汪冬冬 牟思南 |
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| 作者单位： | 1. 国网安徽省电力有限公司芜湖供电公司，安徽 芜湖 241000;2. 安徽工程大学 电气工程学院，安徽 芜湖 241000;3. 中国城市能源变革产业发展联盟，北京 100123 |
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| 基金项目： | 国家自然科学基金资助项目(基于不变网络的大型分布式信息系统故障检测与定位研究,61572032)。 |
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| 摘 要： | 在直流微网系统中,各分布式单元通常以分散的方式接入直流母线,而分布式电源和负荷易受到外界环境影响,从而影响直流微网母线电压稳定性.因此设计一种基于母线电压分层的直流微网系统协调控制策略,构建以光伏发电为主的直流微网系统结构,将母线电压划分为5个层级,针对不同层级对应的运行模式,研究分布式单元运行方式及其控制策略,最后通...
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| 关 键 词： | 直流微网 电压分层 协调控制 能量调度 运行模式 |
| 收稿时间： | 2020-12-15 |
| 修稿时间： | 2022-01-06 |
Coordinated Control of DC Microgrid System Based on Bus Voltage Stratification |
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| LIN Qiyou,JIANG Wenliang,LI Yuanyuan,WANG Dongdong,MOU Sinan. Coordinated Control of DC Microgrid System Based on Bus Voltage Stratification[J]. Electric Power, 2022, 55(2): 166-171,180. DOI: 10.11930/j.issn.1004-9649.202012071 |
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| Authors: | LIN Qiyou JIANG Wenliang LI Yuanyuan WANG Dongdong MOU Sinan |
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| Affiliation: | 1. State Grid Wuhu Electric Power Co., Ltd., Wuhu 241000, China;2. College of Electrical Engineering, Anhui Polytechnic University, Wuhu 241000, China;3. China City Energy Development Industrial Alliance, Beijing 100123, China |
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| Abstract: | In a DC microgrid system,distributed units are usually connected to the DC bus in a decentralized manner,and distributed power sources and loads are easily affected by the external environment,which degrades the bus voltage stability of the DC microgrid.In order to solve this problem,a coordinated control strategy for DC microgrid system based on bus voltage stratification is proposed in this paper.The strategy builds a DC microgrid system structure mainly based on photovoltaic power generation,and then divides the bus voltage into five levels.Under the corresponding operation mode of each level,the operation mode and the control strategy are studied.Finally,the effectiveness of the proposed control strategy in suppressing the fluctuation of the system bus voltage is verified when the fluctuation of the photovoltaic power generation and the load is caused by the change of environmental factors. |
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| Keywords: | DC microgrid system voltage stratification coordinated control energy scheduling operation mode |
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