电器与能效管理技术 ›› 2022, Vol. 0 ›› Issue (12): 38-45.doi: 10.16628/j.cnki.2095-8188.2022.12.007

• 电气设计与探讨 • 上一篇    下一篇

物联塑壳断路器的拓扑识别模块设计

周云红, 黄飞, 王玉莹   

  1. 南京工程学院 电力工程学院, 江苏 南京 210000
  • 收稿日期:2022-07-21 出版日期:2022-12-30 发布日期:2023-01-16
  • 作者简介:周云红(1982—),女,教授,博士,研究方向为特种电力传动、飞轮储能以及智能配用电技术。|黄 飞(1998—),男,硕士研究生,研究方向为电气自动化。|王玉莹(2000—),女,硕士研究生,研究方向为配电网技术。
  • 基金资助:
    国家自然科学基金项目(51977103);江苏省重点研发计划项目(BE2021094);南京工程学院科研基金项目(YKJ202208)

Design of Topology Identification Module for IOT Molded Case Circuit Breaker

ZHOU Yunhong, HUANG Fei, WANG Yuying   

  1. School of Power Engineering,Nanjing Institute of Technology, Nanjing 210000, China
  • Received:2022-07-21 Online:2022-12-30 Published:2023-01-16

摘要:

面向泛在电力台区建设需要,设计一款内置专用拓扑识别模块的新型物联塑壳断路器,具有特征电流自发送、自接收和自检测功能。利用快速傅里叶变换与功率谱密度估值进行特征电流信号的检测和判别,后台融合终端查询到各断路器的拓扑记录后,再根据时间戳判断出各断路器所处的层级,最终汇总为台区拓扑关系图。所提方案具有注入特征电流小,对电网质量无影响的优点,并且无须配备单独的信号发送和识别装置,实现电路简单。试验以及试点台区的运行结果,验证了所提方案的可行性和有效性,具有一定的工程应用价值。

关键词: 物联网断路器, 拓扑识别, 特征电流, 低压台区

Abstract:

For the construction of ubiquitous power stations,a new IOT molded case circuit breaker with built-in dedicated topology identification module is designed,which has the functions of characteristic current self-sending,self-receiving and self-detecting.The fast Fourier transform and power spectral density estimation are utilized to detect and distinguish the characteristic current signal.After the background fusion terminal queries the topology records of each circuit breaker,the level of each circuit breaker is determined according to the timestamp,and finally the substation area topology diagram is summarized.The proposed scheme has the advantages of small injected characteristic current,no influence on the quality of power grid,no need for the separate signal transmission and identification device,and simple circuit.The test and the operation results of the pilot station verify the feasibility and effectiveness of the method,which has certain engineering application value.

Key words: IOT circuit breaker, topology identification, characteristic current, low voltage station area

中图分类号: