湖南电力 ›› 2025, Vol. 45 ›› Issue (1): 130-135.doi: 10.3969/j.issn.1008-0198.2025.01.019

• 配电网与用能技术 • 上一篇    下一篇

基于下垂控制的孤岛混合微电网群功率协调控制策略

智明, 杨飞, 符瑞, 邹杰, 陈笑, 夏磊, 徐迅   

  1. 国网江苏省电力有限公司泰州供电公司,江苏 泰州 225300
  • 收稿日期:2024-10-23 修回日期:2024-11-19 出版日期:2025-02-25 发布日期:2025-03-05
  • 通信作者: 杨飞(1989),男,硕士,高级工程师,研究方向为电力系统调度控制、配电自动化。
  • 作者简介:智明(1980),男,高级工程师,研究方向为配电网调度控制、微电网运行与控制、新能源发电技术。符瑞(1986),男,高级工程师,研究方向为配电网运行与控制、供电可靠性管理。邹杰(1983),男,高级工程师,研究方向为配电网运行与控制、配电自动化。陈笑(1988),女,工程师,研究方向为配电网运行与控制、新能源发电技术。夏磊(1989),男,高级工程师,研究方向为微电网运行与控制、配网自动化。徐迅(1991),男,工程师,研究方向为电力系统调度控制、微电网运行与控制。
  • 基金资助:
    国网江苏省电力有限公司科技项目(J2023104)

Power Coordination Control Strategy for Islanded Hybrid Microgrid Group Based on Droop Control

ZHI Ming, YANG Fei, FU Rui, ZOU Jie, CHEN Xiao, XIA Lei, XU Xun   

  1. State Grid Taizhou Power Supply Company, Taizhou 225300, China
  • Received:2024-10-23 Revised:2024-11-19 Online:2025-02-25 Published:2025-03-05

摘要: 将多个交直流混合微电网进行互联,构成混合微电网群是目前负荷供电的常用方式,发挥其中子微网的自治特性、实现子微网间功率互动支撑是交直流混合微电网群功率管理的关键问题之一。为此,针对孤岛运行的交直流混合微电网群,提出一种由子网功率自治控制层、相邻子网间功率互动支撑层及混合微电网群功率平衡层组成的功率管理策略。通过三层之间的协调控制可以有效提高孤岛交直流混合微电网群的供电可靠性和供电质量,并降低微电网群功率损耗。最后,通过搭建实验平台对所提控制策略进行验证,实验结果表明所提策略在通信正常和通信故障下具有较好的鲁棒性。

关键词: 交直流混合微电网群, 功率自治, 功率互动支撑, 功率平衡

Abstract: Interconnecting multiple AC/DC hybrid microgrids to form a hybrid microgrid cluster is a common way to supply loads, and how to utilize the autonomy of the sub-microgrids and realize the interactive power support between sub-microgrids is one of the key issues in AC/DC hybrid microgrid cluster power management. For this reason, this paper proposes a power management strategy consisting of three layers: power autonomy control layer of subgrids, power interaction support layer between neighboring subgrids, and power balance layer of the hybrid microgrid cluster for the AC/DC hybrid microgrid cluster with islanded operation. The coordinated control among the three layers can effectively improve the power supply reliability and quality of the isolated AC/DC hybrid microgrid cluster and reduce the power loss of the microgrid cluster. Finally, the proposed control strategy is verified by building an experimental platform, and the experimental results show that the proposed strategy has better robustness under normal communication and communication failure.

Key words: AC/DC hybrid multi-microgrids, power autonomy control, power interaction support, power balance

中图分类号: