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文章摘要
基于本地自适应调节的交直流混合微电网全局协调控制
Global coordination control for AC/DC hybrid microgrid based on local adaptive regulation
Received:March 24, 2020  Revised:April 13, 2020
DOI:10.19753/j.issn1001-1390.2022.07.021
中文关键词: 交直流混合微电网  模糊下垂控制  同步信号  全局协调控制
英文关键词: AC/DC hybrid microgrid, fuzzy droop control, synchronous signal, global coordinated control
基金项目:国家自然科学基金项目( 项目编号:61873159)上海市科委项目(18020500700);上海绿色能源并网工程技术研究中心项目资助(13DZ2251900) ,“电气工程”上海市II类高原学科;上海市电站自动化技术重点实验室。,国家自然科学基金项目( 项目编号)
Author NameAffiliationE-mail
Fu Yang Shanghai University of Electric Power mfudong@126.com 
Wang Xiaoxu Shanghai University of Electric Power 2897788210@qq.com 
Mi Yang* Shanghai University of Electric Power 2897788210@qq.com 
Zhang Zhiquan Shanghai University of Electric Power zzhiquan@126.com 
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中文摘要:
      针对交直流混合微电网,提出了一种基于本地自适应调节的微电网全局协调控制策略。对直流子微网内的分布式电源(DG)设计模糊自适应下垂控制,通过自动调节下垂系数消除线路阻抗的影响,实现直流子微电网内部有功功率的精确分配。对交流子微电网内的分布式电源,设计基于同步补偿的改进下垂控制,从而消除线路阻抗的影响,保证有功功率均分的同时实现无功功率均分。在本地调节的基础上,设计计及储能参与的混合微电网全局协调控制策略,消除频率/电压偏差并恢复至额定值,实现交直流子微网间、子微网与储能系统间功率的合理流动和自主分配。与此同时制定功率交换控制规则,以避免不必要的功率交换,降低了功率损耗并延长了储能寿命。最后运用Matlab仿真平台,对本文所设计控制策略的有效性进行验证。
英文摘要:
      A global coordination control strategy based on local adaptive regulation is proposed forAC/DC hybrid microgrid. In order to eliminate the effect of line resistance and realize accurate power allocation, the fuzzy droop control is designed to the distributed generation in DC microgrid. In order to eliminate the effect of line impedance and realize reactive power sharing and active power sharing,an improved droop control strategy based on synchronous signals designed to the distributed generation in AC microgrid. Based on local regulation, the global coordination control is used for hybrid microgrids with energy storage, which can eliminate frequency/voltage deviations and restore them to their rated values, can achieve a reasonable and autonomous power flow between AC sub-microgrid and DC sub-microgrid, and between sub-microgrids and energy storage systems. Meanwhile, the power exchange control law is formulated to avoid unnecessary power exchange and extend energy storage life. Finally, the proposed control method is verified by simulation platform of MATLAB/SIMULINK, the results show the effectiveness of the proposed strategy.
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