孤岛直流微电网的光储协调控制策略  

Coordinated control strategy with photovoltaic storage for isolated DC microgrid

作　　者：尹聪聪 杨旭红 YIN Congcong;YANG Xuhong(State Grid Zhejiang Yuyao Power Supply Company,Ningbo 315400,Zhejiang,China;College of Automation Engineering,Shanghai University of Electric Power,Shanghai 200090,China)

机构地区：[1]国网浙江余姚市供电公司,浙江宁波315400 [2]上海电力大学自动化工程学院,上海200090

出　　处：《上海电机学院学报》2020年第4期194-199,206,共7页Journal of Shanghai Dianji University

基　　金：上海市电站自动化技术重点实验室开放课题资助项目(13DZ2273800);上海市科技创新行动计划高新技术领域重点资助项目(14511101200);上海市重点科技攻关计划(上海市科委地方院校能力建设资助项目)(14110500700);国家自然科学基金资助项目(61203224)。

摘　　要：针对孤岛模式下的直流微电网,光伏电池由于容易受到外界因素干扰而出现微电网内功率不平衡现象,为此提出采用非对称模糊控制策略跟踪最大功率点充分利用光能。对于传统模式下的微电网协调控制策略容易出现电能质量波动范围大,从而导致微电网内部协调控制模式切换频率高的问题,提出了把直流微电网母线电压进行分段式协调控制的方式。通过Matlab/Simulink实验仿真,验证了方案的有效性和可行性。For the DC microgrid in the island mode,the photovoltaic cells are prone to be disturbed by the external factors,which leads to power imbalance in the microgrid.Therefore,an asymmetric fuzzy control strategy is proposed to track the maximum power point and make full use of the light energy.For the problem that the power quality fluctuates widely in the traditional coordinated control strategy of the microgrid,which leads to frequent frequency switching of the internal coordinated control mode of the microgrid,this paper proposes a method of the sectional coordinated control of the DC microgrid bus voltage.The effectiveness and feasibility of the proposed scheme are verified by the Matlab/Simulink experimental simulation.

关 键 词：直流微电网 非对称模糊 布尔量 母线电压 分段式控制 

分 类 号：TM727[电气工程—电力系统及自动化]