中国电力 ›› 2020, Vol. 53 ›› Issue (10): 187-191.DOI: 10.11930/j.issn.1004-9649.201907162

• 电网 • 上一篇    下一篇

基于一致性算法的微电网无差调频控制策略

王岳1, 杨国华1,2, 庄家懿1, 潘欢1,2, 邹玙琦1, 韩世军2   

  1. 1. 宁夏大学 电气工程与自动化系,宁夏 银川 750021;
    2. 宁夏电力能源安全自治区重点实验室,宁夏 银川 750021
  • 收稿日期:2019-07-23 修回日期:2020-03-16 发布日期:2020-10-05
  • 作者简介:王岳(1992—),男,硕士研究生,从事微电网与新能源发电研究,E-mail:wangyue3546@126.com;杨国华(1972—),男,通信作者,教授,从事新能源发电与微网技术的研究,E-mail:ygh@nxu.edu.cn;庄家懿(1996—),男,硕士研究生,从事电力系统通讯技术研究,E-mail:zhjy_ha@126.com
  • 基金资助:
    国家自然科学基金资助项目(含分布式电源的复杂电网脆弱性综合评估与同步控制,61763040);宁夏自治区重点研发计划资助项目(2018BFH03004);宁夏自治区自然科学基金资助项目(NZ17022)

Zero-Error Frequency Regulation Control Method for Microgrids Based on Consensus Algorithm

WANG Yue1, YANG Guohua1,2, ZHUANG Jiayi1, PAN Huan1,2, ZOU Yuqi1, HAN Shijun2   

  1. 1. Department of Electrical Engineering and Automation, Ningxia University, Yinchuan 750021, China.;
    2. Ningxia Key Laboratory of Electrical Energy Security, Yinchuan 750021, China
  • Received:2019-07-23 Revised:2020-03-16 Published:2020-10-05
  • Supported by:
    This work is supported by the National Natural Science Foundation of China (Comprehensive vulnerability assessment and synchronization control of complex power grid with distributed generation, No.61763040); Key Research and Development Program of Ningxia Autonomus region (No.2018 BFH03004); Natural Science Foundation of Ningxia Autonomus region (No.NZ17022)

摘要: 微电网孤岛运行时,采用传统下垂控制策略的微电网频率因其输出功率的变化而偏离额定值,为此,提出一种微电网下垂系数自调节控制策略。微网内各微源由一致性算法获得下垂系数自调节值,实现微电网频率无静差,同时确保有功功率按额定容量分担负荷,在PSCAD中搭建微网模型,并与传统下垂控制仿真结果对比,表明了控制策略的有效性。

关键词: 微电网, 下垂控制, 一致性算法, 频率无静差, 功率分配

Abstract: For islanded microgrids, the microgrid system frequency with traditional droop control often deviates from the rated frequency due to the variation of output power. Therefore, a self-adjusting droop coefficient control strategy for microgrids is proposed. Through the consistency algorithm, the micro-power source in the micro-grid obtains the self-adjusting amount of the droop coefficient to achieve no static difference in the frequency of the micro-grid, while ensuring that the active power shares the load according to the rated capacity. A microgrid simulation model is built in PSCAD, and the simulation result verifies the effectiveness of the control strategy through comparison with that of traditional droop control.

Key words: micro-grid, droop control, consensus algorithm, zero-error frequency regulation, power sharing