JPS6489971A - Pulse width modulation system for power rectifier - Google Patents

Pulse width modulation system for power rectifier

Info

Publication number
JPS6489971A
JPS6489971A JP62243682A JP24368287A JPS6489971A JP S6489971 A JPS6489971 A JP S6489971A JP 62243682 A JP62243682 A JP 62243682A JP 24368287 A JP24368287 A JP 24368287A JP S6489971 A JPS6489971 A JP S6489971A
Authority
JP
Japan
Prior art keywords
waves
carrier
carrier waves
pulse width
width modulation
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
JP62243682A
Other languages
Japanese (ja)
Inventor
Masayoshi Kumano
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62243682A priority Critical patent/JPS6489971A/en
Publication of JPS6489971A publication Critical patent/JPS6489971A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Inverter Devices (AREA)

Abstract

PURPOSE:To reduce modulated waves, by selecting four carrier waves synchronized with modulation signal waves having the phase difference of pi/2 mutually as the carrier waves, in order in every 1/2 cycle of said modulation signal waves, and by using the selected carrier waves. CONSTITUTION:The pulse width modulation system of a power converter is provided with power converter units 2a-2b, a balance reactor 5, a timing signal generating circuit 6, a signal wave generating circuit 8, a code inversion circuit 9, a pulse width modulation circuit 10, a carrier wave generating circuit 12 for generating four chopping waves(carrier waves)A-D having the phase difference of pi/2 mutually, and carrier wave selecting circuits 11U-11W. Then, as carrier waves, four carrier waves synchronized with modulation signal waves having the phase difference of pi/2 mutually are selected in order in every 1/2 cycle of said modulation signal waves, and the selected carrier waves are used. Then, on overall line output voltage, zero-level output drop in every 1/2 cycle of the carrier waves is prevented from being generated.
JP62243682A 1987-09-30 1987-09-30 Pulse width modulation system for power rectifier Pending JPS6489971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62243682A JPS6489971A (en) 1987-09-30 1987-09-30 Pulse width modulation system for power rectifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62243682A JPS6489971A (en) 1987-09-30 1987-09-30 Pulse width modulation system for power rectifier

Publications (1)

Publication Number Publication Date
JPS6489971A true JPS6489971A (en) 1989-04-05

Family

ID=17107419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62243682A Pending JPS6489971A (en) 1987-09-30 1987-09-30 Pulse width modulation system for power rectifier

Country Status (1)

Country Link
JP (1) JPS6489971A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006109688A (en) * 2004-09-10 2006-04-20 Meidensha Corp Pwm control method of polyphase serial multiplexing power conversion apparatus
JP2010148157A (en) * 2008-12-16 2010-07-01 Meidensha Corp Method of detecting output current of serial multiple inverter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006109688A (en) * 2004-09-10 2006-04-20 Meidensha Corp Pwm control method of polyphase serial multiplexing power conversion apparatus
JP2010148157A (en) * 2008-12-16 2010-07-01 Meidensha Corp Method of detecting output current of serial multiple inverter

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