JPS5668268A - Controlling system of cyclo converter current - Google Patents

Controlling system of cyclo converter current

Info

Publication number
JPS5668268A
JPS5668268A JP14308179A JP14308179A JPS5668268A JP S5668268 A JPS5668268 A JP S5668268A JP 14308179 A JP14308179 A JP 14308179A JP 14308179 A JP14308179 A JP 14308179A JP S5668268 A JPS5668268 A JP S5668268A
Authority
JP
Japan
Prior art keywords
phase input
power factor
phase
load current
cyclo converter
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
JP14308179A
Other languages
Japanese (ja)
Other versions
JPS6147068B2 (en
Inventor
Kihei Nakajima
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 JP14308179A priority Critical patent/JPS5668268A/en
Publication of JPS5668268A publication Critical patent/JPS5668268A/en
Publication of JPS6147068B2 publication Critical patent/JPS6147068B2/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
    • H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
    • H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
    • H02M5/22—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC 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
    • H02M5/27—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC 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 for conversion of frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

PURPOSE:To improve the input power factor of the cyclo converter by maintaining the phase input signal for determining the ignition timing of a thyristor sequentially constant during 1/3 of load current half period. CONSTITUTION:The cyclo converter 2 which includes thyristor converters capable of being controlled by currents is provided in each of three-phase star connected AC loads 3. The phase input signals pHU', pHV', pHW' for determining the firing timing of the respective phase thyristors are sequentially set constantly to 1/3 of the half period of the load currents IU, IV, IW, respectively, and the load current value is controlled by other two phases during this period. Thus, the load current is so set that the phase input is large in the vicinity of the peak, that is, the control delay angle is minimum, the phase input power factor is maximum, and the composite power factor of all the phases can be impoved.
JP14308179A 1979-11-05 1979-11-05 Controlling system of cyclo converter current Granted JPS5668268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14308179A JPS5668268A (en) 1979-11-05 1979-11-05 Controlling system of cyclo converter current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14308179A JPS5668268A (en) 1979-11-05 1979-11-05 Controlling system of cyclo converter current

Publications (2)

Publication Number Publication Date
JPS5668268A true JPS5668268A (en) 1981-06-08
JPS6147068B2 JPS6147068B2 (en) 1986-10-17

Family

ID=15330463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14308179A Granted JPS5668268A (en) 1979-11-05 1979-11-05 Controlling system of cyclo converter current

Country Status (1)

Country Link
JP (1) JPS5668268A (en)

Also Published As

Publication number Publication date
JPS6147068B2 (en) 1986-10-17

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