FR2313802A1 - Inverter thyristors control unit - is connected to three-phase mains for supply of a current to DC motors and uses saw-tooth voltage - Google Patents

Inverter thyristors control unit - is connected to three-phase mains for supply of a current to DC motors and uses saw-tooth voltage

Info

Publication number
FR2313802A1
FR2313802A1 FR7614902A FR7614902A FR2313802A1 FR 2313802 A1 FR2313802 A1 FR 2313802A1 FR 7614902 A FR7614902 A FR 7614902A FR 7614902 A FR7614902 A FR 7614902A FR 2313802 A1 FR2313802 A1 FR 2313802A1
Authority
FR
France
Prior art keywords
voltage
saw
motors
control unit
supply
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
FR7614902A
Other languages
French (fr)
Other versions
FR2313802B3 (en
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2313802A1 publication Critical patent/FR2313802A1/en
Application granted granted Critical
Publication of FR2313802B3 publication Critical patent/FR2313802B3/fr
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
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/75—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
    • H02M7/757—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Control Of Electrical Variables (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Power Conversion In General (AREA)
  • Motor And Converter Starters (AREA)

Abstract

When a control voltage coincides with a saw-tooth voltage, an ignition command is delivered to the corresponding thyristors. The starting point of the saw- tooth voltage depends on a smoothed test voltage which is derived in a series of integrators from zero crossings of a phase voltage. The zero crossing of a test voltage is derived from a phase voltage and this zero crossing is shifted by a phase shifter and a smoothing circuit into the area of another zero crossing of a phase voltage; it serves as a reference point for the beginning of the saw- tooth voltage integration for a next half-wave.
FR7614902A 1975-06-02 1976-05-18 Inverter thyristors control unit - is connected to three-phase mains for supply of a current to DC motors and uses saw-tooth voltage Granted FR2313802A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752524371 DE2524371C3 (en) 1975-06-02 1975-06-02 Control unit

Publications (2)

Publication Number Publication Date
FR2313802A1 true FR2313802A1 (en) 1976-12-31
FR2313802B3 FR2313802B3 (en) 1980-10-17

Family

ID=5948017

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7614902A Granted FR2313802A1 (en) 1975-06-02 1976-05-18 Inverter thyristors control unit - is connected to three-phase mains for supply of a current to DC motors and uses saw-tooth voltage

Country Status (4)

Country Link
JP (1) JPS51145847A (en)
DE (1) DE2524371C3 (en)
FR (1) FR2313802A1 (en)
IT (1) IT1078823B (en)

Also Published As

Publication number Publication date
FR2313802B3 (en) 1980-10-17
DE2524371A1 (en) 1976-12-09
JPS51145847A (en) 1976-12-15
IT1078823B (en) 1985-05-08
DE2524371B2 (en) 1978-09-21
DE2524371C3 (en) 1979-05-31

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