广东电力2017，Vol.30Issue(8)：19-25,7.DOI:10.3969/j.issn.1007-290X.2017.08.004
含V2G的直流微网电压分层控制策略
Hierarchical Control Strategy for DC Micro-grid Voltage with V2G
摘要
Abstract
In allusion to problems of DC micro-grid such as expensive energy storage, single control and bad stability, this paper proposes a kind of hierarchical control strategy for DC micro-grid voltage with vehicle-to-grid (V2G) technology.On the basis of current control method based on DC bus signal (DBS), this strategy introduces V2G technology to replace part of static energy storage, which can improve system stability and economy.By means of optimizing energy storage control, it proposes different control methods for hybrid energy storage units according to different conditions of grid connection or disconnection.Under the condition of operational states of the micro-grid changing, each converter of the system smoothly switches operational state according to bus voltage interval so as to maintain power balance of the micro-grid, stabilize voltage fluctuation and improve overall stability of the DC micro-grid.It establishes a simulation model for DC micro-grid in MATLAB-Simulink for simulation analysis under different operational conditions.Results verify effectiveness of the proposed hierarchical control strategy for voltage.关键词
直流微网/V2G/分层控制/母线电压/功率平衡Key words
DC micro-grid/vehicle-to-grid (V2G)/hierarchical control/bus voltage/power balance分类
信息技术与安全科学引用本文复制引用
周建萍,张纬舟,王涛,李欣煜,李泓青..含V2G的直流微网电压分层控制策略[J].广东电力,2017,30(8):19-25,7.基金项目
国家自然科学基金项目(61275038) （61275038）
上海市重点科技攻关计划(15160500800、14110500700) （15160500800、14110500700）
上海市科学技术委员会工程技术研究中心项目资助(14DZ2251100) （14DZ2251100）
