JPS6434189A - Control system of induction motor - Google Patents

Control system of induction motor

Info

Publication number
JPS6434189A
JPS6434189A JP62188568A JP18856887A JPS6434189A JP S6434189 A JPS6434189 A JP S6434189A JP 62188568 A JP62188568 A JP 62188568A JP 18856887 A JP18856887 A JP 18856887A JP S6434189 A JPS6434189 A JP S6434189A
Authority
JP
Japan
Prior art keywords
motor
contact
speed
group
induction motor
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
JP62188568A
Other languages
Japanese (ja)
Inventor
Masayuki Nashiki
Motosumi Yura
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.)
Okuma Corp
Original Assignee
Okuma Machinery Works 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 Okuma Machinery Works Ltd filed Critical Okuma Machinery Works Ltd
Priority to JP62188568A priority Critical patent/JPS6434189A/en
Publication of JPS6434189A publication Critical patent/JPS6434189A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To rotate a motor smoothly in a very low speed and control the rotating position of the motor accurately, by connecting a current limiting element between the induction motor and a frequency converter in the low speed. CONSTITUTION:When the motor rotating speed command SA of a high speed is outputted from a speed command generating circuit 1, the group 4 of switches is closed and the contact of a switching circuit 2 is switched to the contact S1. On the other hand, when a rotating position command SC is outputted from a position command generating circuit 3, the group 4 of switches is opened and the contact of the switching circuit 2 is switched to the contact S2. Then, an inverter 20 outputs 3-phase AC voltage, having a frequency proportional to the output signal of a speed error amplifier 9, to a motor 30 through the group 5 of resistors.
JP62188568A 1987-07-28 1987-07-28 Control system of induction motor Pending JPS6434189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62188568A JPS6434189A (en) 1987-07-28 1987-07-28 Control system of induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62188568A JPS6434189A (en) 1987-07-28 1987-07-28 Control system of induction motor

Publications (1)

Publication Number Publication Date
JPS6434189A true JPS6434189A (en) 1989-02-03

Family

ID=16225964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62188568A Pending JPS6434189A (en) 1987-07-28 1987-07-28 Control system of induction motor

Country Status (1)

Country Link
JP (1) JPS6434189A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006255887A (en) * 2006-04-21 2006-09-28 Toshiba Mach Co Ltd Tool, transmission, machine tool and tool management system
CN102009364A (en) * 2010-09-30 2011-04-13 芜湖日升重型机床有限公司 Feeding and rapid moving stepless variable system for shaft of boring mill

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571095B2 (en) * 1977-01-12 1982-01-09
JPS6110993A (en) * 1984-06-25 1986-01-18 Matsushita Electric Ind Co Ltd Electronic rectification type motor for washing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571095B2 (en) * 1977-01-12 1982-01-09
JPS6110993A (en) * 1984-06-25 1986-01-18 Matsushita Electric Ind Co Ltd Electronic rectification type motor for washing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006255887A (en) * 2006-04-21 2006-09-28 Toshiba Mach Co Ltd Tool, transmission, machine tool and tool management system
CN102009364A (en) * 2010-09-30 2011-04-13 芜湖日升重型机床有限公司 Feeding and rapid moving stepless variable system for shaft of boring mill

Similar Documents

Publication Publication Date Title
DE3370732D1 (en) Three-phase power factor controller with induced emf sensing
AU546056B2 (en) Three-phase power factor controller
GB2313202A (en) A method for measuring phase currents in an inverter
CA2195085A1 (en) Transmission Line Power Controller with a Continuously Controllable Voltage Source Responsive to a Real Power Demand and a Reactive Power Demand
JPS57207901A (en) Digital controlling device
JPS6434189A (en) Control system of induction motor
EP0325301A3 (en) Power control apparatus
JPS5450812A (en) Power source change over device of induction motors
KR830005752A (en) 3-phase power factor controller
JPS6469266A (en) Three-phase pwm signal generation circuit for inverter device
JPS562568A (en) Bridge measuring instrument
JPS55111682A (en) Dc motor control circuit
JPS648837A (en) Ac no-break power unit
JPS5442712A (en) Electric car controlling system
JPS5644394A (en) Controller for ac motor
JPS57129182A (en) Speed controller for motor
JPS57122694A (en) Speed controller for step motor
JPS6464503A (en) Artificial main circuit, artificial motor circuit for vvvf vehicle controller checker
JPS5656185A (en) Speed control system for dc motor
JPS5568803A (en) Reducing method of higher harmonic component of source current
UA8587A1 (en) Device to control frequency- adjustable electric drive
NOLA Phase detector for three-phase power factor controller[Patent]
JPS57189596A (en) Single-phase condenser motor
JPS5513651A (en) Control device of single phase induction motor
JPS56153992A (en) Controlling device of motor