JPS57129170A - Controlling method for pulse width modulation control inverter - Google Patents

Controlling method for pulse width modulation control inverter

Info

Publication number
JPS57129170A
JPS57129170A JP56012738A JP1273881A JPS57129170A JP S57129170 A JPS57129170 A JP S57129170A JP 56012738 A JP56012738 A JP 56012738A JP 1273881 A JP1273881 A JP 1273881A JP S57129170 A JPS57129170 A JP S57129170A
Authority
JP
Japan
Prior art keywords
modulation factor
pulse mode
output frequency
pulse width
pulse
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
JP56012738A
Other languages
Japanese (ja)
Other versions
JPS6361875B2 (en
Inventor
Ikuo Yasuoka
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 JP56012738A priority Critical patent/JPS57129170A/en
Publication of JPS57129170A publication Critical patent/JPS57129170A/en
Publication of JPS6361875B2 publication Critical patent/JPS6361875B2/ja
Granted 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)
  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To control the switching of a pulse mode by detecting the fact that modulation factor calculated in each pulse mode according to the power source voltage and output frequency reaches the maximum modulation factor determined by the number of pulses and the output frequency. CONSTITUTION:The predetermined pulse train is obtained by comparing a synchronized sinusoidal modulation wave S with a triangular wave T, and the pulse width is controlled by controlling the modulation factor of the peak values of the sinusoidal and triangular waves. In a pulse mode selector 3, the fact that the modulation factor alphaN calculated in each pulse mode according to the power source voltage Ed and the output frequency (f) reaches the maximum modulation factor alphaN determined by the number of pulses and the output frequency (f), thereby controlling the switching of the pulse mode.
JP56012738A 1981-01-30 1981-01-30 Controlling method for pulse width modulation control inverter Granted JPS57129170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012738A JPS57129170A (en) 1981-01-30 1981-01-30 Controlling method for pulse width modulation control inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012738A JPS57129170A (en) 1981-01-30 1981-01-30 Controlling method for pulse width modulation control inverter

Publications (2)

Publication Number Publication Date
JPS57129170A true JPS57129170A (en) 1982-08-11
JPS6361875B2 JPS6361875B2 (en) 1988-11-30

Family

ID=11813765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012738A Granted JPS57129170A (en) 1981-01-30 1981-01-30 Controlling method for pulse width modulation control inverter

Country Status (1)

Country Link
JP (1) JPS57129170A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0293844A2 (en) * 1987-06-01 1988-12-07 Hitachi, Ltd. A control apparatus for PWM-controlled, variable voltage/variable frequency inverters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0293844A2 (en) * 1987-06-01 1988-12-07 Hitachi, Ltd. A control apparatus for PWM-controlled, variable voltage/variable frequency inverters

Also Published As

Publication number Publication date
JPS6361875B2 (en) 1988-11-30

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