JPS5480950A - Control system for ac elevator - Google Patents

Control system for ac elevator

Info

Publication number
JPS5480950A
JPS5480950A JP14815177A JP14815177A JPS5480950A JP S5480950 A JPS5480950 A JP S5480950A JP 14815177 A JP14815177 A JP 14815177A JP 14815177 A JP14815177 A JP 14815177A JP S5480950 A JPS5480950 A JP S5480950A
Authority
JP
Japan
Prior art keywords
controlling
control
phase
control system
braking torque
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.)
Granted
Application number
JP14815177A
Other languages
Japanese (ja)
Other versions
JPS612589B2 (en
Inventor
Keishin Hatakeyama
Takeshi Ohira
Tomiaki Kurihara
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 JP14815177A priority Critical patent/JPS5480950A/en
Publication of JPS5480950A publication Critical patent/JPS5480950A/en
Publication of JPS612589B2 publication Critical patent/JPS612589B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Elevator Control (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To provide a control system for controlling operation of AC elevator, in which gain of a phase-shift controlling means is designed to be switched between accelerating operation and decelerating operation so as to afford a proper gain to both of acceleration contolling system and deeleration conrolling system, whereby it is enabled to make the control system economical and efficient.
CONSTITUTION: Control element for controlling driving torque of three-phase induction motor is constituted by thyristors 11, 12 connected in parallel reversely, and control element for controlling the braking torque is constituted by a rectifying control circuit made of thyristors 11, 12 and diodes 13, 14. furter, the same control means 18-1 is employed in a phase-shift controlling unit 18 for controlling the driving torque and braking torque, and a control system is constituted by the means 18-1, control means 18-3 capable of freely controlling the gain of phase-shifting characteristics of said unit 18 at the time of controlling driving torque and braking torque, and switching means 18-2 for switching the operation of said control means 18-3 at the time of contolling the driving torque and braking torque. By means of the phase-shift controlling unit 18 arranged as above, current and velocity damping means are eliminated and construction of standard-velocity instructing means 15 can be simplified. Further, other control sections otherwise required can be also eliminated, so that construction of the entire system can be made simple and hence economical, and at the same time, operation of the control system is rendered reliable.
COPYRIGHT: (C)1979,JPO&Japio
JP14815177A 1977-12-12 1977-12-12 Control system for ac elevator Granted JPS5480950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14815177A JPS5480950A (en) 1977-12-12 1977-12-12 Control system for ac elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14815177A JPS5480950A (en) 1977-12-12 1977-12-12 Control system for ac elevator

Publications (2)

Publication Number Publication Date
JPS5480950A true JPS5480950A (en) 1979-06-28
JPS612589B2 JPS612589B2 (en) 1986-01-25

Family

ID=15446396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14815177A Granted JPS5480950A (en) 1977-12-12 1977-12-12 Control system for ac elevator

Country Status (1)

Country Link
JP (1) JPS5480950A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0351275A (en) * 1989-07-18 1991-03-05 Mitsubishi Electric Corp Elevator controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0351275A (en) * 1989-07-18 1991-03-05 Mitsubishi Electric Corp Elevator controller

Also Published As

Publication number Publication date
JPS612589B2 (en) 1986-01-25

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