储能科学与技术 ›› 2019, Vol. 8 ›› Issue (4): 665-670.doi: 10.12028/j.issn.2095-4239.2019.0118

• 微电网与分布式储能技术专刊 • 上一篇    下一篇

面向低压配变台区的微电网技术

寇凌峰1, 熊雄1, 侯小刚1, 牛耕1, 屈小云1, 陈凡2   

  1. 1 中国电力科学研究院有限公司, 北京 100192;
    2 国网安徽省电力有限公司电力科学研究院, 安徽 合肥 230601
  • 收稿日期:2019-06-02 修回日期:2019-06-15 出版日期:2019-07-01 发布日期:2019-06-13
  • 通讯作者: 寇凌峰(1985-),男,高级工程师,研究方向为分布式发电、微电网及综合能源系统等,E-mail:klf0927@126.com。
  • 作者简介:寇凌峰(1985-),男,高级工程师,研究方向为分布式发电、微电网及综合能源系统等,E-mail:klf0927@126.com。
  • 基金资助:
    国家电网公司科技项目(PDB17201700022提高光伏扶贫地区电网消纳能力与保障技术的研究及应用)。

Microgrid technology for low voltage distribution transformer station area

KOU Lingfeng1, XIONG Xiong1, HOU Xiaogang1, NIU Geng1, QU Xiaoyun1, CHEN Fan2   

  1. 1 China Electric Power Research Institute, Beijing 100192, China;
    2 Electric Power Research Institute of State GridAnhui Electric Power Company, Hefei 230601, Anhui, China
  • Received:2019-06-02 Revised:2019-06-15 Online:2019-07-01 Published:2019-06-13

摘要: 大规模分布式电源、储能和电动汽车等电力电子装置分散接入配电网,致使出现用户侧供电电压频繁双向越限、台区潮流倒送、谐波超标等问题,给配电网供电电能质量、运行经济性和供电可靠性造成了重大影响;本文结合配电网台区实际建设情况,提出了一种面向低压配变台区的新型微电网配置方法,并系统阐述了面向低压配变台区的微电网技术架构、功能架构和控制目标,建立了基于台区微电网两阶段协调控制模型,通过微电网协调控制与优化调度,实现分布式电源优化并网和高效发电。采用典型台区微电网进行了仿真计算,验证了方法和模型的有效性。

关键词: 分布式电源, 配变台区, 台区微电网, 两阶段协调控制

Abstract: Large-scale distributed power supply, energy storage and electric vehicles are distributed into the distribution network, resulting in frequent bidirectional overrun of power supply voltage at the user side, power flow reversal at the station area, harmonic overrun and other issues, which have a signifcant impact on the power quality, operation economy and reliability of distribution network. A new micro-grid confguration method for low-voltage distribution transformer area is presented. The technical framework, functional framework and control objectives of the micro-grid oriented to lowvoltage distribution transformer area are systematically described. A two-stage coordinated control model based on the micro-grid is established. Through the coordinated control and optimal dispatch of the micro-grid, the optimal grid-connected and effcient generation of distributed generation are realized. The validity of the method and model is validated by the simulation calculation of typical microgrid.

Key words: distributed power supply, distribution area, station microgrid, two-stage coordinated control

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