计算机与现代化 ›› 2023, Vol. 0 ›› Issue (09): 120-126.doi: 10.3969/j.issn.1006-2475.2023.09.019

• 信息安全 • 上一篇    

考虑分布式发电并网的配电网自适应保护系统

  

  1. (1.中国南方电网电力调度控制中心,广东 广州 510623; 2.国电南瑞南京控制系统有限公司,江苏 南京 215200)
  • 出版日期:2023-09-28 发布日期:2023-10-10
  • 作者简介:刘显茁(1991—),吉林白山人,高级工程师,博士,研究方向:电力调度自动化,E-mail: 3589856091@qq.com; 邓韦斯(1984—),男,浙江宁波人,高级工程师,硕士,研究方向:电力调度自动化; 谢恩彦(1968—),男,湖北随州人,高级工程师,学士,研究方向:电力调度自动化。
  • 基金资助:
    中国南方电网有限责任公司科技项目(ZDKJXM20210051)

Adaptive Protection System for Distribution Network Considering Grid Connection of Distributed Generation

  1. (1. China Southern Power Grid Power Dispatching Control Center, Guangzhou 510623, China;
    2. NARI-TECH Nanjing Control Systems Co. Ltd., Nanjing 215200, China)
  • Online:2023-09-28 Published:2023-10-10

摘要: 为进一步提高考虑分布式发电并网的配电网自适应保护的速动性,提出一种考虑分布式发电并网的配电网自适应保护系统,该系统通过改进微遗传算法实时优化和更新保护继电器的设置。为验证所提出的自适应保护系统的有效性,通过Simulink/MATLAB平台对包含多个故障案例的仿真搭建仿真数据库,并将所提出的自适应保护系统与其他2种配电网自适应保护系统对仿真数据库中故障线路切除效果进行对比。对比结果表明,通过所提出的自适应保护系统得到的故障线路切除速度明显优快于其他2种配电网自适应保护系统。

关键词: 自适应保护, 配电网, 分布式发电, 微遗传算法, 算法改进

Abstract:  To further improve the rapidness of adaptive protection of distribution network considering distributed generation grid connection, an adaptive protection system for distribution network considering distributed generation grid connection is proposed. The improved microgenetic algorithm is utilized to optimize and update the settings of protective relays in real time. In order to verify the effectiveness of the proposed adaptive protection system, a simulation database is built by Simulink/MATLAB platform for the simulation of multiple fault cases. The effect of the proposed adaptive protection system on fault line removal in the simulation database is compared with that of other two adaptive protection systems. The comparison results show that the fault line removal speeds obtained by the proposed adaptive protection system are significantly faster than those obtained by the other two adaptive protection systems.

Key words:  , adaptive protection; distribution network; distributed generation; microgenetic algorithm; algorithm improving

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