JPS558202A - Method of controlling dc braking - Google Patents

Method of controlling dc braking

Info

Publication number
JPS558202A
JPS558202A JP7797978A JP7797978A JPS558202A JP S558202 A JPS558202 A JP S558202A JP 7797978 A JP7797978 A JP 7797978A JP 7797978 A JP7797978 A JP 7797978A JP S558202 A JPS558202 A JP S558202A
Authority
JP
Japan
Prior art keywords
braking
current standard
signal
respect
amplifier amp2
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
JP7797978A
Other languages
Japanese (ja)
Inventor
Teruo Nakano
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7797978A priority Critical patent/JPS558202A/en
Publication of JPS558202A publication Critical patent/JPS558202A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE: To restrict the abrupt variation of the decelerating torque of an induction motor against braking torgue increasing rapidly in the vicinity of low speed by continuously reducing the current standard at DC braking time.
CONSTITUTION: When a signal f of reverse polarity with respect to the current standard of a signal e is applied to an arithmetic amplifier AMP2, an exponential fucntion singal of reverse polarity with respect to the standard e is applied through a resistor R23 to the amplifier AMP 2 by the operation of a resistor R22 and a capacitor C21 at the input of the amplifier AMP2 to thus cause the amplifier AMP2 to produce an output signal of exponential continuous signal as a DC braking current standard. When an induction motor is thus decelerated by means of DC braking, the current standard is continuously reduced with respect to the braking torgue abruptly increasing in the vicinity of low speed thereof to thereby restrict the abruptly increasing braking torque.
COPYRIGHT: (C)1980,JPO&Japio
JP7797978A 1978-06-29 1978-06-29 Method of controlling dc braking Pending JPS558202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7797978A JPS558202A (en) 1978-06-29 1978-06-29 Method of controlling dc braking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7797978A JPS558202A (en) 1978-06-29 1978-06-29 Method of controlling dc braking

Publications (1)

Publication Number Publication Date
JPS558202A true JPS558202A (en) 1980-01-21

Family

ID=13648996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7797978A Pending JPS558202A (en) 1978-06-29 1978-06-29 Method of controlling dc braking

Country Status (1)

Country Link
JP (1) JPS558202A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950302A (en) * 1982-09-14 1984-03-23 Metoroole:Kk Device for measuring wide range dimension
JPS60162491A (en) * 1984-02-03 1985-08-24 Matsushita Electric Ind Co Ltd Braking device of motor
JPH03253282A (en) * 1990-02-28 1991-11-12 Fuji Electric Co Ltd Direct-current damping of induction motor by use of inverter
JP2006060875A (en) * 2004-08-17 2006-03-02 Fuji Electric Fa Components & Systems Co Ltd Method of controlling motor drive unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239688U (en) * 1975-09-13 1977-03-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239688U (en) * 1975-09-13 1977-03-19

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950302A (en) * 1982-09-14 1984-03-23 Metoroole:Kk Device for measuring wide range dimension
JPH0256601B2 (en) * 1982-09-14 1990-11-30 Metorooru Kk
JPS60162491A (en) * 1984-02-03 1985-08-24 Matsushita Electric Ind Co Ltd Braking device of motor
JPH03253282A (en) * 1990-02-28 1991-11-12 Fuji Electric Co Ltd Direct-current damping of induction motor by use of inverter
JP2006060875A (en) * 2004-08-17 2006-03-02 Fuji Electric Fa Components & Systems Co Ltd Method of controlling motor drive unit
JP4539224B2 (en) * 2004-08-17 2010-09-08 富士電機システムズ株式会社 Control method of motor drive device

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