JPS55122484A - Sine-wave inverter - Google Patents

Sine-wave inverter

Info

Publication number
JPS55122484A
JPS55122484A JP2908879A JP2908879A JPS55122484A JP S55122484 A JPS55122484 A JP S55122484A JP 2908879 A JP2908879 A JP 2908879A JP 2908879 A JP2908879 A JP 2908879A JP S55122484 A JPS55122484 A JP S55122484A
Authority
JP
Japan
Prior art keywords
output
motor
sine
wave
triangular
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
JP2908879A
Other languages
Japanese (ja)
Other versions
JPS591072B2 (en
Inventor
Shigeki Kawada
Hiroshi Ishida
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
Fujitsu Fanuc 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 Fanuc Corp, Fujitsu Fanuc Ltd filed Critical Fanuc Corp
Priority to JP54029088A priority Critical patent/JPS591072B2/en
Publication of JPS55122484A publication Critical patent/JPS55122484A/en
Publication of JPS591072B2 publication Critical patent/JPS591072B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current

Abstract

PURPOSE:To make it possible to increase a current upto the limit value when a motor current is increased, by detecting the overcurrent, and controlling a pulse- width modulating means by a triangular-wave generating means and a timer. CONSTITUTION:A command signal and a speed signal for an induction motor 1 is input of a V/f converter 24, and the output pulses are supplied to a sine-wave generator 27 via a frequency divider 26, thereby an artificial sine wave is output. On the other hand, the output of a triangular-wave generator 28 is compared with the sine wave in a comparator 29, given to a pulse-width modulator 30 to control transistors Q, thereby the rpm of the motor 1 is controlled. When a load current exceeds a limit value, the output of a comparator 33 is supplied to a timer 31 and the triangular- wave generator 28, thereby the transistors Q are controlled. Therefore, the current to be flown to the motor can be fully increased upto the limit value, and the large torque can be generated.
JP54029088A 1979-03-13 1979-03-13 sine wave inverter Expired JPS591072B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54029088A JPS591072B2 (en) 1979-03-13 1979-03-13 sine wave inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54029088A JPS591072B2 (en) 1979-03-13 1979-03-13 sine wave inverter

Publications (2)

Publication Number Publication Date
JPS55122484A true JPS55122484A (en) 1980-09-20
JPS591072B2 JPS591072B2 (en) 1984-01-10

Family

ID=12266587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54029088A Expired JPS591072B2 (en) 1979-03-13 1979-03-13 sine wave inverter

Country Status (1)

Country Link
JP (1) JPS591072B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003596A1 (en) * 1983-03-03 1984-09-13 Fanuc Ltd Method of controlling synchronous motor
JPS6392275A (en) * 1986-10-04 1988-04-22 Yutaka Denki Seisakusho:Kk Overcurrent control circuit for inverter
CN107852124A (en) * 2015-09-30 2018-03-27 株式会社日立产机系统 Power inverter and its automated tuning method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003596A1 (en) * 1983-03-03 1984-09-13 Fanuc Ltd Method of controlling synchronous motor
JPS59162794A (en) * 1983-03-03 1984-09-13 Fanuc Ltd Control system of synchronous motor
JPS6392275A (en) * 1986-10-04 1988-04-22 Yutaka Denki Seisakusho:Kk Overcurrent control circuit for inverter
CN107852124A (en) * 2015-09-30 2018-03-27 株式会社日立产机系统 Power inverter and its automated tuning method
EP3358743A4 (en) * 2015-09-30 2019-06-12 Hitachi Industrial Equipment Systems Co., Ltd. Power conversion device and auto-tuning method therefor

Also Published As

Publication number Publication date
JPS591072B2 (en) 1984-01-10

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