Smart SPD Impulse Current Life Assessment Method Based on Weibull Distribution and MOV Impulse Characteristics

HUANG Xin; ZHOU Qibin; WU Di; YE Linlong; TANG Feipeng; CAO Ting

doi:10.13296/j.1001-1609.hva.2024.08.020

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Smart SPD Impulse Current Life Assessment Method Based on Weibull Distribution and MOV Impulse Characteristics

Research & Analysis | 更新时间：2025-04-26

- Smart SPD Impulse Current Life Assessment Method Based on Weibull Distribution and MOV Impulse Characteristics
- High Voltage Apparatus Vol. 60, Issue 8, Pages: 167-173(2024)
- 作者机构：
  
  1.国网浙江省电力有限公司平湖市供电公司，浙江　平湖　 314200
  2.上海大学机电工程与自动化学院，上海　 200444
  3.常州市创捷防雷电子有限公司，江苏　常州　 213023
  4.国网浙江省电力有限公司丽水市莲都区供电公司，浙江　丽水　 323000
  5.国网上海市电力公司松江供电公司，上海　 201600
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(62273224)
- DOI：10.13296/j.1001-1609.hva.2024.08.020
  CLC：
- Received：16 January 2024，
  
  Revised：19 March 2024，
  
  Published：16 August 2024
- 稿件说明：
移动端阅览
HUANG Xin, ZHOU Qibin, WU Di, et al. Smart SPD Impulse Current Life Assessment Method Based on Weibull Distribution and MOV Impulse Characteristics[J]. High voltage apparatus, 2024, 60(8): 167-173.
DOI：

HUANG Xin, ZHOU Qibin, WU Di, et al. Smart SPD Impulse Current Life Assessment Method Based on Weibull Distribution and MOV Impulse Characteristics[J]. High voltage apparatus, 2024, 60(8): 167-173. DOI： 10.13296/j.1001-1609.hva.2024.08.020.

摘要

浪涌保护器（SPD）是低压电力线路中用于限制过电压，泄放电涌电流的重要电气装置。随着物联网的发展，传统的SPD逐步发展成为具有在线监测工作状态、故障诊断、寿命预测等功能的智能SPD。由于SPD的寿命与其核心元件金属氧化物压敏电阻（MOV）的寿命密切相关，文中基于Weibull分布并结合MOV的脉冲电流寿命特性，通过试验得到了MOV在不同冲击下的特性方程。根据建立的脉冲电流寿命特性方程和运行中SPD的脉冲电流监测数据，提出了一种SPD剩余寿命评估方法，为智能SPD的不断发展提供了理论支持。

Abstract

Surge protection device (SPD) is an important electrical device for limiting over-voltage and releasing surge current in low-voltage power lines. With the development of the internet of things

the traditional SPD has gradually developed into an intelligent SPD with the functions of online monitoring

fault diagnosis and life prediction. Since the life of SPD is closely related to the life of its core component

namely metal oxide varistor (MOV). In this paper

the characteristics equations of MOV under different impulse current are obtained through test on the basis of the Weibull distribution and the impulse current life characteristics of MOV. A kind of residual life assessment method is proposed in accordance with the established impulse current life characteristics equations and the impulse current monitoring data of SPD in operation

which provides the theoretical support for the development of smart SPD.

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