JP3960350B1 - 地絡検出方法 - Google Patents
地絡検出方法 Download PDFInfo
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- JP3960350B1 JP3960350B1 JP2006063648A JP2006063648A JP3960350B1 JP 3960350 B1 JP3960350 B1 JP 3960350B1 JP 2006063648 A JP2006063648 A JP 2006063648A JP 2006063648 A JP2006063648 A JP 2006063648A JP 3960350 B1 JP3960350 B1 JP 3960350B1
- Authority
- JP
- Japan
- Prior art keywords
- ground fault
- voltage
- power supply
- arm side
- smoothing capacitor
- Prior art date
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- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
-
- 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
- G01R31/34—Testing dynamo-electric machines
- G01R31/346—Testing of armature or field windings
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
- H02H3/162—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems
- H02H3/165—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems for three-phase systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
- H02M1/123—Suppression of common mode voltage or current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Inverter Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
【解決手段】三相モータ10に地絡が発生すると、インバータ回路20を構成するハイアーム側トランジスタQ21〜Q23およびローアーム側トランジスタQ24〜Q26のいずれかがONからOFFに切り替わるたびに平滑コンデンサ1の両端電圧が上昇する。地絡検出部3から平滑コンデンサ1の両端電圧を検出し、第1所定期間内の増分および第2所定期間内の増分を算出することで、突発的な電源異常を切り分けて、地絡を検出することができる。
【選択図】図4
Description
図1は本発明にかかる地絡検出技術を実現するインバータシステムを示す概略構成図である。インバータ100は、三相交流電源40から電源供給を受け、三相モータ10を駆動する。
3 電圧検出部
10 三相モータ
Q21〜Q23 ハイアーム側トランジスタ
Q24〜Q26 ローアーム側トランジスタ
D21〜D26 ダイオード
Claims (3)
- インバータ(100)が駆動する誘導性多相負荷(10)に発生した地絡を検出する地絡検出方法であって、
前記インバータは、
第1の直流電源線(VH)と、
前記第1の直流電源線より低い電位が印加される第2の直流電源線(VL)と、
前記第1の直流電源線及び第2の直流電源線の間に接続された平滑コンデンサ(1)と、
前記誘導性多相負荷と接続する複数の出力線(L4,L5,L6)と、
前記第1の直流電源線と前記出力線の各々との間でそれぞれ接続された複数のハイアーム側スイッチ(Q21,Q22,Q23)と、
前記ハイアーム側スイッチとそれぞれ並列に接続され、前記第1の直流電源線に接続されたカソードを有するダイオード(D21,D22,D23)と、
前記第2の直流電源線と前記出力線の各々との間でそれぞれ接続された複数のローアーム側スイッチ(Q24,Q25,Q26)と、
前記ローアーム側スイッチとそれぞれ並列に接続され、前記第2の直流電源線に接続されたアノードを有するダイオード(D24,D25,D26)と
を備えており、
前記ハイアーム側スイッチおよび前記ローアーム側スイッチのうち、少なくともいずれか一つのスイッチがONからOFFに切り替わることに伴って、前記平滑コンデンサの両端電圧が上昇することを以って前記地絡が発生したと判断する、地絡検出方法。 - 請求項1記載の地絡検出方法であって、
(a)前記平滑コンデンサの第1の前記両端電圧(Vt1)を検出するステップ(S1)と、
(b)前記ステップ(a)が実行された時点から、前記ハイアーム側スイッチおよび前記ローアーム側スイッチのうち、少なくともいずれか一つのスイッチがONからOFFに切り替わった後、前記平滑コンデンサの第2の前記両端電圧(Vt2)を検出するステップ(S2)と、
(c)前記第1の前記両端電圧に対する前記第2の前記両端電圧の増分(ΔV1)が第1の所定の値を越えているか否かを判断するステップ(S3,S4)と
を実行する、地絡検出方法。 - (d)前記ステップ(b)が実行された時点から、前記ハイアーム側スイッチおよび前記ローアーム側スイッチのうち、少なくともいずれか一つのスイッチがONからOFFに切り替わった後、前記平滑コンデンサの第3の前記両端電圧(Vt3)を検出するステップ(S5)と、
(e)前記第2の前記両端電圧と前記第3の前記両端電圧の増分(ΔV2)が第2の所定の値を越えているか否かを判断するステップ(S6,S7)と
をさらに実行する、請求項2記載の地絡検出方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006063648A JP3960350B1 (ja) | 2006-03-09 | 2006-03-09 | 地絡検出方法 |
EP07737874.3A EP1995870A4 (en) | 2006-03-09 | 2007-03-06 | Earth-fault detecting method |
PCT/JP2007/054327 WO2007102503A1 (ja) | 2006-03-09 | 2007-03-06 | 地絡検出方法 |
CNA2007800051073A CN101385236A (zh) | 2006-03-09 | 2007-03-06 | 接地故障检测方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006063648A JP3960350B1 (ja) | 2006-03-09 | 2006-03-09 | 地絡検出方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP3960350B1 true JP3960350B1 (ja) | 2007-08-15 |
JP2007244104A JP2007244104A (ja) | 2007-09-20 |
Family
ID=38456466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006063648A Expired - Fee Related JP3960350B1 (ja) | 2006-03-09 | 2006-03-09 | 地絡検出方法 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1995870A4 (ja) |
JP (1) | JP3960350B1 (ja) |
CN (1) | CN101385236A (ja) |
WO (1) | WO2007102503A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113002333A (zh) * | 2021-03-24 | 2021-06-22 | 清华大学 | 全贯通式柔性交流牵引供电系统的大功率变流器接地方案 |
US20210341548A1 (en) * | 2018-09-28 | 2021-11-04 | Liquid Robotics, Inc., A Subsidiary Of The Boeing Company | Leakage Detection for Electronic Device |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100956488B1 (ko) | 2008-03-10 | 2010-05-07 | 엘에스산전 주식회사 | 인버터를 지락으로부터 보호하기 위한 장치 및 방법 |
EP2112521A1 (de) * | 2008-04-24 | 2009-10-28 | ABB Schweiz AG | Verfahren zur Fehlererkennung in einer Umrichterschaltung |
WO2010119620A1 (ja) * | 2009-04-17 | 2010-10-21 | ダイキン工業株式会社 | 電源回路、及び電源回路の制御プログラムを記憶したコンピュータ読取可能な記憶媒体 |
CN102466770A (zh) * | 2010-11-11 | 2012-05-23 | 株洲南车时代电气股份有限公司 | 交直交电力机车接地故障点的判断方法和判断系统 |
TW201428309A (zh) * | 2013-01-14 | 2014-07-16 | Li shu qi | 主動型連續式直流供電絕緣故障偵測電路 |
JP2015208143A (ja) | 2014-04-22 | 2015-11-19 | 日立オートモティブシステムズ株式会社 | 電動機駆動装置 |
JP6348424B2 (ja) * | 2015-01-13 | 2018-06-27 | 株式会社Soken | 電力変換装置 |
GB2623134A (en) * | 2022-11-11 | 2024-04-10 | Mclaren Applied Ltd | Fault detection in an electric drive train of a vehicle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63161815A (ja) * | 1986-12-23 | 1988-07-05 | 三菱電機株式会社 | インバ−タ装置の地絡保護装置 |
JPH05223906A (ja) * | 1992-02-17 | 1993-09-03 | Mitsubishi Electric Corp | 地絡検出制御装置 |
JP2903863B2 (ja) * | 1992-05-29 | 1999-06-14 | 三菱電機株式会社 | インバータ装置 |
JPH0654550A (ja) * | 1992-07-29 | 1994-02-25 | Toshiba Toransupooto Eng Kk | 欠相検知装置 |
US6856137B2 (en) * | 2002-02-19 | 2005-02-15 | Bae Systems Controls Inc. | Ground fault detection system and method |
JP2004289903A (ja) * | 2003-03-20 | 2004-10-14 | Toyota Motor Corp | インバータ装置 |
JP2005304138A (ja) | 2004-04-08 | 2005-10-27 | Toyota Motor Corp | モータ駆動装置 |
-
2006
- 2006-03-09 JP JP2006063648A patent/JP3960350B1/ja not_active Expired - Fee Related
-
2007
- 2007-03-06 WO PCT/JP2007/054327 patent/WO2007102503A1/ja active Application Filing
- 2007-03-06 CN CNA2007800051073A patent/CN101385236A/zh active Pending
- 2007-03-06 EP EP07737874.3A patent/EP1995870A4/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210341548A1 (en) * | 2018-09-28 | 2021-11-04 | Liquid Robotics, Inc., A Subsidiary Of The Boeing Company | Leakage Detection for Electronic Device |
US11609280B2 (en) * | 2018-09-28 | 2023-03-21 | Liquid Robotics, Inc. | Leakage detection for electronic device |
CN113002333A (zh) * | 2021-03-24 | 2021-06-22 | 清华大学 | 全贯通式柔性交流牵引供电系统的大功率变流器接地方案 |
CN113002333B (zh) * | 2021-03-24 | 2022-07-19 | 清华大学 | 全贯通式柔性交流牵引供电系统的大功率变流器接地方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1995870A4 (en) | 2017-09-27 |
EP1995870A1 (en) | 2008-11-26 |
JP2007244104A (ja) | 2007-09-20 |
WO2007102503A1 (ja) | 2007-09-13 |
CN101385236A (zh) | 2009-03-11 |
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