MY148223A - Elevator leakage current reduction apparatus - Google Patents

Elevator leakage current reduction apparatus

Info

Publication number
MY148223A
MY148223A MYPI20090968A MY148223A MY 148223 A MY148223 A MY 148223A MY PI20090968 A MYPI20090968 A MY PI20090968A MY 148223 A MY148223 A MY 148223A
Authority
MY
Malaysia
Prior art keywords
converter
common mode
power line
current
inverter
Prior art date
Application number
Inventor
Junji Takeda
Original Assignee
Toshiba Elevator Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Elevator Kk filed Critical Toshiba Elevator Kk
Publication of MY148223A publication Critical patent/MY148223A/en

Links

Landscapes

  • Control Of Ac Motors In General (AREA)
  • Rectifiers (AREA)
  • Power Conversion In General (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

AN ELEVATOR LEAKAGE CURRENT REDUCTION APPARATUS INCLUDES A POWER CONVERTER (3) WHICH TEMPORARILY CONVERTS AN ALTERNATING CURRENT SUPPLIED FROM AN AC POWER SUPPLY (1) INTO A DIRECT CURRENT BY USING A CONVERTER (4), CONVERTS THE DIRECT CURRENT INTO AN ALTERNATING CURRENT AGAIN BY USING AN INVERTER (7), AND SUPPLIES THE ALTERNATING CURRENT TO AN ELECTRIC MOTOR (10) WHICH MOVES AN ELEVATOR CAR, A MAIN CONTROLLER (22) WHICH IS PROVIDED WITH AN INVERTER DRIVING UNIT (24) WHICH DRIVES THE INVERTER TO MOVE THE CAR TO A TARGET FLOOR, A COMMON MODE CURRENT EXTRACTION CIRCUIT (14) WHICH IS CONNECTED TO A POWER LINE (9) EXTENDING FROM THE INVERTER IN THE POWER CONVERTER TO THE ELECTRIC MOTOR AND EXTRACTS A COMMON MODE CURRENT FLOWING IN THE POWER LINE, AN INTERPHASE CAPACITOR (15) WHICH IS CONNECTED TO A POWER LINE (2) EXTENDING FROM THE AC POWER SUPPLY TO THE CONVERTER AND HAS A NEUTRAL POINT INTO WHICH A COMMON MODE CURRENT EXTRACTED BY THE COMMON MODE CURRENT EXTRACTION CIRCUIT FLOWS, A COMMON MODE CHOKE (17) WHICH IS INSERTED BETWEEN THE INTERPHASE CAPACITOR AND THE CONVERTER ON THE POWER LINE EXTENDING TO THE CONVERTER, AND A CONTROL POWER SUPPLY CIRCUIT (21) WHICH IS CONNECTED BETWEEN THE INTERPHASE CAPACITOR AND THE COMMON MODE CHOKE ON THE POWER LINE EXTENDING TO THE CONVERTER.
MYPI20090968 2008-03-12 2009-03-11 Elevator leakage current reduction apparatus MY148223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008063011A JP4968689B2 (en) 2008-03-12 2008-03-12 Elevator leakage current reduction device

Publications (1)

Publication Number Publication Date
MY148223A true MY148223A (en) 2013-03-29

Family

ID=41190626

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20090968 MY148223A (en) 2008-03-12 2009-03-11 Elevator leakage current reduction apparatus

Country Status (3)

Country Link
JP (1) JP4968689B2 (en)
CN (1) CN101572407B (en)
MY (1) MY148223A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4616397B2 (en) * 2009-02-23 2011-01-19 ファナック株式会社 PWM rectifier
JP5460881B2 (en) * 2010-11-24 2014-04-02 三菱電機株式会社 Motor drive circuit
US8704481B2 (en) * 2011-01-26 2014-04-22 Rockwell Automation Technologies, Inc. Choke with current sensor
EP2973964A4 (en) * 2013-03-13 2016-12-14 Kone Corp Arrangement, frequency converter and elevator system
JP5792268B2 (en) * 2013-11-28 2015-10-07 ファナック株式会社 Power converter with LC filter abnormality detection function
CN104716822A (en) * 2013-12-13 2015-06-17 施耐德东芝换流器欧洲公司 Frequency converter control method and control device
CN104319988B (en) * 2014-09-28 2017-09-22 安徽中科医药成像技术科技有限公司 The system for eliminating the method for interfering frequency and eliminating interfering frequency
CN104300872A (en) * 2014-10-09 2015-01-21 台州市百施度工贸有限公司 Constant-power output intelligent frequency modulating and speed regulating frequency conversion system and control method thereof
CN105049086B (en) * 2015-08-31 2018-01-09 山东中大电源科技有限公司 The non-phase power carrier system of alternating current circuit
JP6797748B2 (en) * 2017-03-21 2020-12-09 株式会社東芝 Power converter and power conversion system
JP7483055B2 (en) 2020-12-24 2024-05-14 三菱電機株式会社 Power conversion device and air conditioner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6295965A (en) * 1985-10-23 1987-05-02 Oki Electric Ind Co Ltd Switching regulator in self-excitation system
JP2656684B2 (en) * 1991-06-12 1997-09-24 三菱電機株式会社 Elevator blackout operation device
KR0115015Y1 (en) * 1991-09-19 1998-10-01 이헌조 Switching driving circuit
JP2863833B2 (en) * 1996-09-18 1999-03-03 岡山大学長 Active common mode canceller
DE69928336T2 (en) * 1998-09-08 2006-07-27 Kabushiki Kaisha Toshiba, Kawasaki Power conversion system
JP2003182943A (en) * 2001-12-14 2003-07-03 Otis Elevator Co Elevator with noise compensation device
JP2004032938A (en) * 2002-06-27 2004-01-29 Mitsubishi Electric Corp Noise filter for inverter device

Also Published As

Publication number Publication date
CN101572407A (en) 2009-11-04
JP4968689B2 (en) 2012-07-04
JP2009219317A (en) 2009-09-24
CN101572407B (en) 2012-05-30

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