JPS56148182A - Controlling method of pwm switching for three-phase bridge current type inverter/converter - Google Patents

Controlling method of pwm switching for three-phase bridge current type inverter/converter

Info

Publication number
JPS56148182A
JPS56148182A JP5219380A JP5219380A JPS56148182A JP S56148182 A JPS56148182 A JP S56148182A JP 5219380 A JP5219380 A JP 5219380A JP 5219380 A JP5219380 A JP 5219380A JP S56148182 A JPS56148182 A JP S56148182A
Authority
JP
Japan
Prior art keywords
phase
phase bridge
wave form
signals
absolute value
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
JP5219380A
Other languages
Japanese (ja)
Inventor
Norio Onishi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP5219380A priority Critical patent/JPS56148182A/en
Publication of JPS56148182A publication Critical patent/JPS56148182A/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

Landscapes

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

Abstract

PURPOSE:To optionally obtain a 3-phase AC current wave form by a method wherein commutation pulse signals are obtained by comparing with two kinds of triangular wave forms different by 90 deg. in phase from each other and the wave form for comparison and made the signals in the 3-phase bridge circuit. CONSTITUTION:The two kinds of the triangular wave forms et1, et2 different by 90 deg. in phase from each other and absolute value wave forms eS1, eS2 of the other two phase currents excluding a current wave form in the phase of the largest absolute value among optional 3-phase set current wave forms iUS, iVS, iWS are compared with each other to obtain the commutation pulse signals P1, P2, and further, a commutation pulse signal P3 is obtained from those common pulse arrays. Those commutation pulse signals are allowed to select switching arms S1-S6 of the 3-phase bridge according to current polarities of the respective phases and to make short-circuit actions only in the section of a pulse signal P4 logically inverted and the same procedures are repeated at a time when the phase of the current wave form with the largest absolute value is changed over to get obtaining control signals, thereby allowing the 3-phase bridge circuit to be PWM switching-controlled.
JP5219380A 1980-04-18 1980-04-18 Controlling method of pwm switching for three-phase bridge current type inverter/converter Pending JPS56148182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5219380A JPS56148182A (en) 1980-04-18 1980-04-18 Controlling method of pwm switching for three-phase bridge current type inverter/converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5219380A JPS56148182A (en) 1980-04-18 1980-04-18 Controlling method of pwm switching for three-phase bridge current type inverter/converter

Publications (1)

Publication Number Publication Date
JPS56148182A true JPS56148182A (en) 1981-11-17

Family

ID=12907949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5219380A Pending JPS56148182A (en) 1980-04-18 1980-04-18 Controlling method of pwm switching for three-phase bridge current type inverter/converter

Country Status (1)

Country Link
JP (1) JPS56148182A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204470A (en) * 1983-05-04 1984-11-19 Hitachi Ltd Controller of current type inverter
JPS6098876A (en) * 1983-11-02 1985-06-01 Hitachi Ltd Controller of current type inverter
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55125082A (en) * 1979-03-19 1980-09-26 Toshiba Corp Controlling method for three-phase current pulse width controlling inverter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55125082A (en) * 1979-03-19 1980-09-26 Toshiba Corp Controlling method for three-phase current pulse width controlling inverter

Cited By (3)

* 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
JPS59204470A (en) * 1983-05-04 1984-11-19 Hitachi Ltd Controller of current type inverter
JPS6098876A (en) * 1983-11-02 1985-06-01 Hitachi Ltd Controller of current type inverter

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