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ISSN 0254-0096 CN 11-2082/K

太阳能学报 ›› 2022, Vol. 43 ›› Issue (10): 458-464.DOI: 10.19912/j.0254-0096.tynxb.2021-0144

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基于MMC-PET的直流微电网综合控制策略

赵振民1, 程静1,2, 王维庆1,2, 张陵3, 南东亮1,3   

  1. 1. 新疆大学电气工程学院,乌鲁木齐 830047;
    2. 可再生能源发电与并网控制工程技术教育部工程研究中心,新疆大学,乌鲁木齐 830047;
    3. 国网新疆电力有限公司电力科学研究院,乌鲁木齐 830011
  • 收稿日期:2021-02-02 出版日期:2022-10-28 发布日期:2023-04-28
  • 通讯作者: 程 静(1980——),女,博士、副教授,主要从事高比例新能源并网控制技术方面的研究。157511515@qq.com
  • 基金资助:
    新疆可再生能源发电与并网技术自治区重点实验室开放课题(2020D04048); 新疆维吾尔自治区自然科学基金(2018D01C046); 国家自然科学基金(52067020); 新疆高校科研计划(XJEDU2021I010)

RESEARCH ON DC MICROGRID LOMPREHENSIVE CONTROL STRATEGY BASED ON MMC-PET

Zhao Zhenmin1, Cheng Jing1,2, Wang Weiqing1,2, Zhang Ling3, Nan Dongliang1,3   

  1. 1. School of Electrical Engineering, Xinjiang University, Urumuqi 830047, China;
    2. Engineering Research Center of Education Ministry for Renewable Energy Power Generation and Grid Technology, Xinjiang University, Urumuqi 830047, China;
    3. Electric Power Research Institute of State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830011, China
  • Received:2021-02-02 Online:2022-10-28 Published:2023-04-28

摘要: 为提升智能配电网电能质量,提出一种基于模块化多电平型电力电子变压器的直流微网构架及其综合控制策略,对分布式电源并网方式进行简化,设计MMC-PET及风光储系统的控制器,对智能配电网中电压深度跌落、三相不平衡等电能质量问题进行治理。在PSCAD/EMTDC平台搭建基于MMC-PET的直流微网风光储系统仿真模型,进行仿真分析总结,结果表明该方法很大程度地提高了新能源接入适应性,具备更快的动态响应速度和更强的鲁棒性,能有效改善智能配电网电能质量。

关键词: 直流微网, 电能质量, 新能源, 电力电子变压器, 模块化多电平变流器, 控制策略

Abstract: In order to improve the power quality of the smart distribution network, a DC microgrid architecture based on the MMC-PET and its integrated control strategy are proposed. The grid connection mode of distributed power supply is simplified. The controller of MMC-PET, wind and solar storage system is designed to deal with power quality problems such as deep voltage drop and three-phase imbalance in the intelligent distribution network. The MMC-PET based DC microgrid wind and solar storage system simulation model was built on the PSCAD/EMTDC platform, and the simulation analysis is summarized. The results show that the method greatly improved the adaptability of new energy access, and had a faster dynamic response speed and stronger robustness, by which the power quality of smart distribution networks can be effectively improved.

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