JP6918428B2 - 地絡検出装置 - Google Patents
地絡検出装置 Download PDFInfo
- Publication number
- JP6918428B2 JP6918428B2 JP2018236247A JP2018236247A JP6918428B2 JP 6918428 B2 JP6918428 B2 JP 6918428B2 JP 2018236247 A JP2018236247 A JP 2018236247A JP 2018236247 A JP2018236247 A JP 2018236247A JP 6918428 B2 JP6918428 B2 JP 6918428B2
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- Prior art keywords
- switch
- capacitor
- battery
- ground fault
- vcn
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Classifications
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- 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
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2617—Measuring dielectric properties, e.g. constants
- G01R27/2623—Measuring-systems or electronic 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
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- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- 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
-
- 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
-
- 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
Description
ここで、前記スイッチ群を2つのc接点リレーで構成してもよい。
110 制御装置
131 c接点リレー
132 c接点リレー
520 昇圧器
540 負荷
Claims (2)
- 昇圧回路を介して負荷に電源を供給する非接地のバッテリと接続し、前記バッテリが設けられた系の絶縁抵抗を算出して地絡を検出する地絡検出装置であって、
フライングキャパシタとして動作するコンデンサと、
第1端が接地された電圧測定用抵抗と、
前記バッテリの正極と前記コンデンサの第1極板との間に設けられた第1スイッチと、
前記バッテリの負極と前記コンデンサの第2極板との間に設けられた第2スイッチと、
前記コンデンサの第1極板と前記電圧測定用抵抗の第2端との間に設けられた第3スイッチと、
前記コンデンサの第2極板と接地との間に設けられた第4スイッチと、
前記各スイッチを制御して前記コンデンサの充電経路を切り替え、各充電経路で充電された前記コンデンサの電圧を、前記前記第3スイッチと前記第4スイッチとを導通させたときに前記電圧測定用抵抗に生じる電圧を測定することで取得する制御部であって、
前記第1スイッチと前記第2スイッチとを導通させたV0充電経路で得られた測定値であるV0、前記第1スイッチと前記第4スイッチとを導通させたVcn充電経路で得られた測定値であるVcn、前記第2スイッチと前記第3スイッチとを導通させたVcp充電経路で得られた測定値であるVcpに基づいて前記絶縁抵抗を算出する制御部と、を備え、
前記制御部は、
正電圧を測定範囲としたものであり、
Vcnが0の場合に、前記コンデンサの充電状態を保ったまま前記Vcp充電経路に切り替えて測定値を取得し、得られた測定値から前記コンデンサの放電後に得られたVcpを引くことでVcnを算出することを特徴とする地絡検出装置。 - 前記第1スイッチと前記第3スイッチとを1つのc接点リレーで構成し、前記第2スイッチと前記第4スイッチとを別の1つのc接点リレーで構成したことを特徴とする請求項1に記載の地絡検出装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018236247A JP6918428B2 (ja) | 2018-12-18 | 2018-12-18 | 地絡検出装置 |
DE102019219349.8A DE102019219349A1 (de) | 2018-12-18 | 2019-12-11 | Erdschlusserfassungsvorrichtung |
US16/712,557 US11187759B2 (en) | 2018-12-18 | 2019-12-12 | Ground fault detection device |
CN201911309105.4A CN111337850B (zh) | 2018-12-18 | 2019-12-18 | 接地故障检测装置 |
Applications Claiming Priority (1)
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JP2018236247A JP6918428B2 (ja) | 2018-12-18 | 2018-12-18 | 地絡検出装置 |
Publications (2)
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JP2020098142A JP2020098142A (ja) | 2020-06-25 |
JP6918428B2 true JP6918428B2 (ja) | 2021-08-11 |
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JP2018236247A Active JP6918428B2 (ja) | 2018-12-18 | 2018-12-18 | 地絡検出装置 |
Country Status (4)
Country | Link |
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US (1) | US11187759B2 (ja) |
JP (1) | JP6918428B2 (ja) |
CN (1) | CN111337850B (ja) |
DE (1) | DE102019219349A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP7391482B2 (ja) * | 2021-05-31 | 2023-12-05 | 矢崎総業株式会社 | 地絡検出装置 |
JP7395240B2 (ja) * | 2021-08-06 | 2023-12-11 | 矢崎総業株式会社 | 地絡検出装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3224977B2 (ja) * | 1994-12-12 | 2001-11-05 | 本田技研工業株式会社 | 非接地電源の絶縁検出方法及び装置 |
EP2322945B1 (en) * | 2008-08-11 | 2014-11-26 | LG Chem, Ltd. | Apparatus and method for sensing battery leakage current, and battery driving apparatus and battery pack comprising the apparatus |
JP5406611B2 (ja) | 2009-07-08 | 2014-02-05 | 矢崎総業株式会社 | 絶縁状態検出装置 |
JP5681409B2 (ja) * | 2010-08-17 | 2015-03-11 | 矢崎総業株式会社 | 非接地電源の絶縁状態検出回路 |
JP5947584B2 (ja) * | 2012-03-27 | 2016-07-06 | 矢崎総業株式会社 | 絶縁状態検出装置 |
JP6063282B2 (ja) * | 2013-02-05 | 2017-01-18 | 矢崎総業株式会社 | 絶縁状態検出装置 |
JP6433305B2 (ja) * | 2014-04-09 | 2018-12-05 | 矢崎総業株式会社 | 非接地電源の絶縁検出装置及び絶縁検出方法 |
JP6597409B2 (ja) * | 2016-03-04 | 2019-10-30 | トヨタ自動車株式会社 | 電圧検出装置 |
JP6391619B2 (ja) * | 2016-03-25 | 2018-09-19 | 株式会社デンソーテン | 劣化特定装置および劣化特定方法 |
JP6625586B2 (ja) * | 2017-02-07 | 2019-12-25 | 矢崎総業株式会社 | 地絡検出装置 |
US10330716B2 (en) * | 2017-02-07 | 2019-06-25 | Yazaki Corporation | Earth fault detector with flying capacitor |
JP2018146264A (ja) * | 2017-03-01 | 2018-09-20 | 矢崎総業株式会社 | 絶縁状態検出装置 |
JP6698599B2 (ja) * | 2017-09-21 | 2020-05-27 | 矢崎総業株式会社 | 地絡検出装置 |
JP6633585B2 (ja) * | 2017-10-04 | 2020-01-22 | 矢崎総業株式会社 | 地絡検出装置 |
JP6676026B2 (ja) * | 2017-11-01 | 2020-04-08 | 矢崎総業株式会社 | 地絡検出装置 |
JP6854750B2 (ja) * | 2017-12-25 | 2021-04-07 | 矢崎総業株式会社 | 地絡検出装置 |
JP6781212B2 (ja) * | 2018-08-23 | 2020-11-04 | 矢崎総業株式会社 | 地絡検出装置 |
JP7171412B2 (ja) * | 2018-12-18 | 2022-11-15 | 矢崎総業株式会社 | 地絡検出装置 |
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2018
- 2018-12-18 JP JP2018236247A patent/JP6918428B2/ja active Active
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2019
- 2019-12-11 DE DE102019219349.8A patent/DE102019219349A1/de active Pending
- 2019-12-12 US US16/712,557 patent/US11187759B2/en active Active
- 2019-12-18 CN CN201911309105.4A patent/CN111337850B/zh active Active
Also Published As
Publication number | Publication date |
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JP2020098142A (ja) | 2020-06-25 |
US20200191881A1 (en) | 2020-06-18 |
CN111337850A (zh) | 2020-06-26 |
CN111337850B (zh) | 2022-05-13 |
DE102019219349A1 (de) | 2020-06-18 |
US11187759B2 (en) | 2021-11-30 |
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