JPS57132769A - Control system for voltage type pwm inverter - Google Patents

Control system for voltage type pwm inverter

Info

Publication number
JPS57132769A
JPS57132769A JP56017761A JP1776181A JPS57132769A JP S57132769 A JPS57132769 A JP S57132769A JP 56017761 A JP56017761 A JP 56017761A JP 1776181 A JP1776181 A JP 1776181A JP S57132769 A JPS57132769 A JP S57132769A
Authority
JP
Japan
Prior art keywords
converter
inverter
signal
voltage
variation
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
JP56017761A
Other languages
Japanese (ja)
Inventor
Yukio Aizawa
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 JP56017761A priority Critical patent/JPS57132769A/en
Publication of JPS57132769A publication Critical patent/JPS57132769A/en
Pending 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
    • H02M7/505—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 thyratron or thyristor type requiring extinguishing means
    • H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/525—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
    • H02M7/527—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To stabilize the control of a voltage type PWM inverter by detecting the varied amount in the DC voltage of a converter in response to the quantity of variation in the rotation of an induction motor, applying it in the same polarity as the frequency reference to feed back it to the oscillation frequency signal of an inverter. CONSTITUTION:An AC power source 1 is connected to a converter 2, the output of the converter is applied to an inverter 3, and an electric power is supplied to an induction motor 4. The signal of a frequency setter 7 is applied to a voltage controller 10, is compared with a signal of a triangular generator 12, is applied as a pulse width modulation signal to a converter 13, and the signal from the setter 7 and the detection signal of a detector 6 which detects the differentiated value of the variation in DC voltage of the converter 2 are applied in the same polarity to the converter 13 through a V/F converter 9, thereby controlling the inverter 3 through a distributor 14 in accordance with both the signals. Accordingly, the variation in the rotation of a motor 4 can be produced in the form of the variation in the voltage of the converter 2, thereby extremely stably controlling the inverter.
JP56017761A 1981-02-09 1981-02-09 Control system for voltage type pwm inverter Pending JPS57132769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56017761A JPS57132769A (en) 1981-02-09 1981-02-09 Control system for voltage type pwm inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56017761A JPS57132769A (en) 1981-02-09 1981-02-09 Control system for voltage type pwm inverter

Publications (1)

Publication Number Publication Date
JPS57132769A true JPS57132769A (en) 1982-08-17

Family

ID=11952694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56017761A Pending JPS57132769A (en) 1981-02-09 1981-02-09 Control system for voltage type pwm inverter

Country Status (1)

Country Link
JP (1) JPS57132769A (en)

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