电器与能效管理技术 ›› 2023, Vol. 0 ›› Issue (4): 67-71.doi: 10.16628/j.cnki.2095-8188.2023.04.011

• 分布式电源及并网技术 • 上一篇    下一篇

分布式光伏逆变器无功优化与安全提升装置的研制

薛冰1, 杨欢红2, 葛云芳1, 刘书培1, 程丰平1, 柴磊2   

  1. 1.国网安徽省电力有限公司 宣城供电公司, 安徽 宣城 242000
    2.上海电力大学, 上海 200090
  • 收稿日期:2022-11-30 出版日期:2023-04-30 发布日期:2023-05-09
  • 作者简介:薛 冰(1982—),男,高级工程师,主要从事智能用电、用电信息采集技术研究。|杨欢红(1965—),女,副教授,研究方向为综合能源系统优化技术。|葛云芳(1979—),女,高级工程师,主要从事新能源微电网系统研究。
  • 基金资助:
    国网安徽省电力有限公司科技项目(B312G0220005)

Development of Reactive Power Optimization and Safety Improvement Device for Distributed Photovoltaic Inverter

XUE Bing1, YANG Huanhong2, GE Yunfang1, LIU Shupei1, CHENG Fengping1, CHAI Lei2   

  1. 1. Xuancheng Power Supply Company,State Grid Anhui Electric Power Co.,Ltd.,Xuancheng 242000,China
    2. Shanghai University of Electric Power,Shanghai 200090,China
  • Received:2022-11-30 Online:2023-04-30 Published:2023-05-09

摘要:

针对规模化分布式光伏接入配电网引起的配电网孤岛效应保护不可靠、过电压、无功紊乱、倒送故障电流等不利影响,提出一种分布式光伏逆变器无功优化与安全提升装置。通过设计的过电压快速保护电路、防倒送故障电流电路、孤岛辅助保护电路、无功优化电路等,装置能有效提升分布式光伏接入配电网的适应性,具备良好的实用价值。

关键词: 分布式光伏, 无功优化, 安全提升, 逆变器, 高压触发二极管

Abstract:

In view of the adverse effects caused by the large-scale distributed photovoltaic access to distribution networks,such as unreliable island effect protection,overvoltage,reactive power disturbance,and reverse transmission of fault current in the distribution network,a distributed photovoltaic inverter reactive power optimization and safety improvement device is proposed.The adaptive performance of distributed photovoltaic access to the distribution network has been effectively improved through the design of fast overvoltage protection circuits,anti reverse fault current circuits,island auxiliary protection circuits,reactive power optimization circuits.The proposed device has good practical value.

Key words: distributed photovoltaic, reactive power optimization, safe improvement, inverter, silicon diode alternating current(SIDAC)

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