JPS6460283A - Controller of elevator - Google Patents

Controller of elevator

Info

Publication number
JPS6460283A
JPS6460283A JP62212705A JP21270587A JPS6460283A JP S6460283 A JPS6460283 A JP S6460283A JP 62212705 A JP62212705 A JP 62212705A JP 21270587 A JP21270587 A JP 21270587A JP S6460283 A JPS6460283 A JP S6460283A
Authority
JP
Japan
Prior art keywords
current components
induction motor
inverter
stepdown transformer
elevator
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP62212705A
Other languages
Japanese (ja)
Inventor
Shunsuke Mitsune
Kiyoshi Nakamura
Takeyoshi Ando
Hiromi Inaba
Masaaki Nakazato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62212705A priority Critical patent/JPS6460283A/en
Publication of JPS6460283A publication Critical patent/JPS6460283A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce the capacity in heavy torque operation, by connecting a stepdown transformer between an inverter device and a driving induction motor in heavy torque operation and by correcting the vector deviation between the exciting current components and torque current components of output current. CONSTITUTION:The output of a three-phase power source 1 is supplied to an induction motor 8 through a converter 3 and an inverter 5. In heavy torque operation such as in testing, etc. an emergency stopper of an elevator, a stepdown transformer 7 is connected between the inverter 5 and the induction motor 8, while the vector deviation between the exciting current components and torque current components of output current to be changed by the stepdown transformer 7 is corrected through a vector control circuit 28.
JP62212705A 1987-08-28 1987-08-28 Controller of elevator Pending JPS6460283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62212705A JPS6460283A (en) 1987-08-28 1987-08-28 Controller of elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62212705A JPS6460283A (en) 1987-08-28 1987-08-28 Controller of elevator

Publications (1)

Publication Number Publication Date
JPS6460283A true JPS6460283A (en) 1989-03-07

Family

ID=16627062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62212705A Pending JPS6460283A (en) 1987-08-28 1987-08-28 Controller of elevator

Country Status (1)

Country Link
JP (1) JPS6460283A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675374A (en) * 1993-11-26 1997-10-07 Fujitsu Limited Video teleconferencing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675374A (en) * 1993-11-26 1997-10-07 Fujitsu Limited Video teleconferencing system

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