JPS57196872A - Controlling method of pulse width modulation control inverter - Google Patents

Controlling method of pulse width modulation control inverter

Info

Publication number
JPS57196872A
JPS57196872A JP56079724A JP7972481A JPS57196872A JP S57196872 A JPS57196872 A JP S57196872A JP 56079724 A JP56079724 A JP 56079724A JP 7972481 A JP7972481 A JP 7972481A JP S57196872 A JPS57196872 A JP S57196872A
Authority
JP
Japan
Prior art keywords
pulse
width
modulation factor
modulated
pulse width
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
JP56079724A
Other languages
Japanese (ja)
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 JP56079724A priority Critical patent/JPS57196872A/en
Publication of JPS57196872A publication Critical patent/JPS57196872A/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

Abstract

PURPOSE:To shortcircuit the slit width of a pulse train by detecting that the ON-pulse width becomes longer than the prescribed value to shortcircuit the ON- pulse at the time of switching a pulse mode. CONSTITUTION:A sinusoidal modulation wave is compared by a triangular carrier as indicated in Figure A, thereby obtainig modulated pulse trains as indicated in Figures B and C. The pulse width of a modulated pulse train is varied by controlling the modulation factor alphaN of the ratio of the pulse trains in Figures B and C, the pulse mode is altered by switching the number of pulses in one cycle, thereby producing an output voltage of variable voltage and variable frequency from a DC voltage. When the fact that the modulation factor alphaN reaches the maximum modulation factor alphamax is detected, the pulse mode is switched to other pulse mode. When the fact that the ON-pulse width T0 of the modulated pulse train width becomes longer than the prescribed value is detected, the ON-pulse is shortcircuited, thereby shortcircuiting the slit width of the modulated pulse train. In this manner, the magnitude of the variation in the step of the modulation factor is reduced, thereby performing a smooth control.
JP56079724A 1981-05-26 1981-05-26 Controlling method of pulse width modulation control inverter Pending JPS57196872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56079724A JPS57196872A (en) 1981-05-26 1981-05-26 Controlling method of pulse width modulation control inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56079724A JPS57196872A (en) 1981-05-26 1981-05-26 Controlling method of pulse width modulation control inverter

Publications (1)

Publication Number Publication Date
JPS57196872A true JPS57196872A (en) 1982-12-02

Family

ID=13698140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56079724A Pending JPS57196872A (en) 1981-05-26 1981-05-26 Controlling method of pulse width modulation control inverter

Country Status (1)

Country Link
JP (1) JPS57196872A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581693A (en) * 1983-04-15 1986-04-08 Hitachi, Ltd. Apparatus for repeatedly applying short-circuit pulses to a current type inverter for output current control
JPH0213274A (en) * 1988-06-30 1990-01-17 Toyo Densan Kk Current limiting method for inverter
US4924168A (en) * 1987-06-01 1990-05-08 Hitachi, Ltd. Control apparatus for PWM-controlled, variable voltage/variable frequency inverters
CN104124881A (en) * 2013-04-25 2014-10-29 长沙理工大学 Novel sine pulse width modulation control algorithm
WO2015194225A1 (en) * 2014-06-18 2015-12-23 株式会社日立製作所 Inverter and drive system using same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5671479A (en) * 1979-11-15 1981-06-15 Mitsubishi Electric Corp Controlling method of variable voltage variable frequency three-phase inverter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5671479A (en) * 1979-11-15 1981-06-15 Mitsubishi Electric Corp Controlling method of variable voltage variable frequency three-phase inverter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581693A (en) * 1983-04-15 1986-04-08 Hitachi, Ltd. Apparatus for repeatedly applying short-circuit pulses to a current type inverter for output current control
US4924168A (en) * 1987-06-01 1990-05-08 Hitachi, Ltd. Control apparatus for PWM-controlled, variable voltage/variable frequency inverters
JPH0213274A (en) * 1988-06-30 1990-01-17 Toyo Densan Kk Current limiting method for inverter
CN104124881A (en) * 2013-04-25 2014-10-29 长沙理工大学 Novel sine pulse width modulation control algorithm
WO2015194225A1 (en) * 2014-06-18 2015-12-23 株式会社日立製作所 Inverter and drive system using same
JP2016005378A (en) * 2014-06-18 2016-01-12 株式会社日立製作所 Inverter and drive system employing the same

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