CN114270198A - 一种绝缘电阻检测电路、方法、装置及其存储介质 - Google Patents

一种绝缘电阻检测电路、方法、装置及其存储介质 Download PDF

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Publication number
CN114270198A
CN114270198A CN202080056880.8A CN202080056880A CN114270198A CN 114270198 A CN114270198 A CN 114270198A CN 202080056880 A CN202080056880 A CN 202080056880A CN 114270198 A CN114270198 A CN 114270198A
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China
Prior art keywords
capacitor
resistor
voltage
value
state
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Pending
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CN202080056880.8A
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English (en)
Inventor
蒋晶
吴志伟
赵晓鹏
莫维
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Huawei Digital Power Technologies Co Ltd
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Huawei Digital Power Technologies Co Ltd
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Publication of CN114270198A publication Critical patent/CN114270198A/zh
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

本申请提供一种绝缘电阻检测电路、方法、装置及其存储介质，用于检测绝缘电阻是否发生故障，包括：状态控制单元、第一分压支路、第二分压支路和处理器；状态控制单元跨接在待检测装置电源的正极和负极之间；第一分压支路与第一电容并联，得到第一电压波形；第二分压支路与第二电容并联，得到第二电压波形；处理器与状态控制单元、第一分压支路和第二分压支路连接，根据当前时刻的第一电压波形和第二电压波形，计算当前时刻之前设定时长内不同时刻的第一电容电压特征值和不同时刻的第二电容电压特征值；根据不同时刻的第一电容电压特征值和/或不同时刻的第二电容电压特征值，确定下一切换时刻，在下一切换时刻控制状态控制单元进行状态切换。

Description

PCT国内申请，说明书已公开。

Claims (24)

  1. PCT国内申请，权利要求书已公开。
CN202080056880.8A 2020-06-29 2020-06-29 一种绝缘电阻检测电路、方法、装置及其存储介质 Pending CN114270198A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/099031 WO2022000206A1 (zh) 2020-06-29 2020-06-29 一种绝缘电阻检测电路、方法、装置及其存储介质

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CN114270198A true CN114270198A (zh) 2022-04-01

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US (1) US20230128107A1 (zh)
EP (1) EP4155739A4 (zh)
CN (1) CN114270198A (zh)
WO (1) WO2022000206A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114660504A (zh) * 2022-04-08 2022-06-24 东方电气集团东方电机有限公司 绝缘监测回路的检测方法、装置、电子设备及存储介质
CN115078844A (zh) * 2022-06-01 2022-09-20 中国第一汽车股份有限公司 Y电容的测试方法、测试设备、存储介质及处理器
CN117192314A (zh) * 2023-11-03 2023-12-08 广州疆海科技有限公司 基于绝缘检测电路的绝缘检测方法、装置和计算机设备
CN118091523A (zh) * 2024-04-25 2024-05-28 宁德时代新能源科技股份有限公司 检测电路、检测设备及检测方法

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CN117665396B (zh) * 2024-01-31 2024-06-07 徐州徐工汽车制造有限公司 用于动力电池的绝缘电阻检测电路、方法、装置及介质

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CN110501645A (zh) * 2019-08-02 2019-11-26 华人运通(江苏)技术有限公司 绝缘故障检测方法、装置、电动汽车和计算机存储介质
CN110726907A (zh) * 2018-07-17 2020-01-24 宁德时代新能源科技股份有限公司 储能系统的绝缘检测装置和方法

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CN210742435U (zh) * 2019-09-09 2020-06-12 北京新能源汽车股份有限公司 一种电动汽车的绝缘检测系统及汽车

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007240300A (ja) * 2006-03-08 2007-09-20 Yazaki Corp 絶縁検出方法および装置
US20110012606A1 (en) * 2009-07-15 2011-01-20 Yazaki Corporation Insulation state detector
KR20130127828A (ko) * 2012-05-15 2013-11-25 주식회사 엘지화학 확장형 칼만 필터를 이용한 배터리 절연 저항 측정 장치 및 방법
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114660504A (zh) * 2022-04-08 2022-06-24 东方电气集团东方电机有限公司 绝缘监测回路的检测方法、装置、电子设备及存储介质
CN114660504B (zh) * 2022-04-08 2023-07-07 东方电气集团东方电机有限公司 绝缘监测回路的检测方法、装置、电子设备及存储介质
CN115078844A (zh) * 2022-06-01 2022-09-20 中国第一汽车股份有限公司 Y电容的测试方法、测试设备、存储介质及处理器
CN117192314A (zh) * 2023-11-03 2023-12-08 广州疆海科技有限公司 基于绝缘检测电路的绝缘检测方法、装置和计算机设备
CN117192314B (zh) * 2023-11-03 2024-04-02 广州疆海科技有限公司 基于绝缘检测电路的绝缘检测方法、装置和计算机设备
CN118091523A (zh) * 2024-04-25 2024-05-28 宁德时代新能源科技股份有限公司 检测电路、检测设备及检测方法

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US20230128107A1 (en) 2023-04-27
EP4155739A4 (en) 2023-07-19
EP4155739A1 (en) 2023-03-29

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