JPS5788897A - Control circuit for inverter - Google Patents

Control circuit for inverter

Info

Publication number
JPS5788897A
JPS5788897A JP55162567A JP16256780A JPS5788897A JP S5788897 A JPS5788897 A JP S5788897A JP 55162567 A JP55162567 A JP 55162567A JP 16256780 A JP16256780 A JP 16256780A JP S5788897 A JPS5788897 A JP S5788897A
Authority
JP
Japan
Prior art keywords
signal
voltage
generates
triangular wave
zero
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
JP55162567A
Other languages
Japanese (ja)
Other versions
JPS6114757B2 (en
Inventor
Takeshi Shioda
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.)
Toyo Denki Seizo KK
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Denki Seizo KK
Toyo Electric Manufacturing 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 Toyo Denki Seizo KK, Toyo Electric Manufacturing Ltd filed Critical Toyo Denki Seizo KK
Priority to JP55162567A priority Critical patent/JPS5788897A/en
Publication of JPS5788897A publication Critical patent/JPS5788897A/en
Publication of JPS6114757B2 publication Critical patent/JPS6114757B2/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)
  • Inverter Devices (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To reduce the torque pulsation of 6F1 frequency of a motor by setting the ratio of the seventh harmonic voltage with fifth harmonic wave at the predetermined value. CONSTITUTION:A triangular wave generator 10 generates a triangular wave signal F synchronized with the oscillation frequency P with a speed set signal S and an oscillation frequency P, while a level unit 9 generates a preselected reference voltage E, and delivers to various modulators 11. The modulators 11 compares the voltage level of the triangular wave signal F with the reference voltage E to produce a chopping signal K to a distributor 8 so as to decide the zero width of the voltage between lines at the position over + or -30 deg. or + or -150 deg.. A zero modulation position determining unit 12 produces respective phase modulating positions A', B', C' for determining the zero modulating positions of the respective phases with the outputs A, B, C of 3-phase signal generator. The distributor 8 generates gate signals A, B, C of the respective phases to an inverter 7 with the 3-phase signals A, B, C and modulating position signals A', B', C' and chopping signal K, and eventually producing line voltage waveforms U', V', W' of a motor.
JP55162567A 1980-11-20 1980-11-20 Control circuit for inverter Granted JPS5788897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55162567A JPS5788897A (en) 1980-11-20 1980-11-20 Control circuit for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55162567A JPS5788897A (en) 1980-11-20 1980-11-20 Control circuit for inverter

Publications (2)

Publication Number Publication Date
JPS5788897A true JPS5788897A (en) 1982-06-02
JPS6114757B2 JPS6114757B2 (en) 1986-04-21

Family

ID=15757036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55162567A Granted JPS5788897A (en) 1980-11-20 1980-11-20 Control circuit for inverter

Country Status (1)

Country Link
JP (1) JPS5788897A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995147A (en) * 1973-01-18 1974-09-10
JPS53103123A (en) * 1977-02-21 1978-09-08 Sanken Electric Co Ltd Inverter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995147A (en) * 1973-01-18 1974-09-10
JPS53103123A (en) * 1977-02-21 1978-09-08 Sanken Electric Co Ltd Inverter

Also Published As

Publication number Publication date
JPS6114757B2 (en) 1986-04-21

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