广东电力2018，Vol.31Issue(2)：58-64,7.DOI:10.3969/j.issn.1007-290X.2018.002.009
光储联合运行直流微电网控制策略
Control Strategy for DC Micro-grid Based on Photovoltaic and Energy Storage Systems
张小东 1王宇 2李白 2焦飞3
作者信息
- 1. 浙江省计量科学研究院,浙江 杭州310018
- 2. 北京云道智造科技有限公司,北京100083
- 3. 中国电力科学研究院有限公司,北京100192
- 折叠
摘要
Abstract
In order to solve the problem of photovoltaic (PV)grid-connection,the paper proposes a kind of control strategy for DC micro-grid operation based on PV and energy storage systems.It firstly constructs structure of the DC micro-grid sys-tem based on unified operation of PV and energy storage which consists of the PV system,the energy storage system,the non-isolated DC-DC converter and the high-frequency isolated DC-DC converter.By dividing six kinds of operation modes for the system and in the premise of ensuring stable DC busbar voltage,this strategy can determine operating state of the en-ergy storage system by detecting and comparing PV output power and load demand power in real time,which is to consider the energy storage system as the relaxation node of the DC micro-grid so as to ensure stable operation of the system.Finally, it verifies effectiveness of this system and the control strategy by PSCAD/EMTDC simulation.Meanwhile,it studies proto-type of the high-frequency isolated DC-DC converter,and the experimental results prove accuracy of theoretical analysis.关键词
光伏并网/直流微电网/控制策略/高频隔离型DC-DC变换器Key words
photovoltaic grid-connection/DC micro-grid/control strategy/high-frequency isolated DC-DC converter分类
信息技术与安全科学引用本文复制引用
张小东,王宇,李白,焦飞..光储联合运行直流微电网控制策略[J].广东电力,2018,31(2):58-64,7.
