JPS5631371A - Controlling method for reactive power compensation type cyclo-converter - Google Patents

Controlling method for reactive power compensation type cyclo-converter

Info

Publication number
JPS5631371A
JPS5631371A JP10553779A JP10553779A JPS5631371A JP S5631371 A JPS5631371 A JP S5631371A JP 10553779 A JP10553779 A JP 10553779A JP 10553779 A JP10553779 A JP 10553779A JP S5631371 A JPS5631371 A JP S5631371A
Authority
JP
Japan
Prior art keywords
phase
cyclo
reactive power
converter
power
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
JP10553779A
Other languages
Japanese (ja)
Other versions
JPS5914987B2 (en
Inventor
Shigeru Tanaka
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 JP10553779A priority Critical patent/JPS5914987B2/en
Publication of JPS5631371A publication Critical patent/JPS5631371A/en
Publication of JPS5914987B2 publication Critical patent/JPS5914987B2/en
Expired 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
    • H02M5/271—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 from a three phase input voltage

Landscapes

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

Abstract

PURPOSE:To compensate the reactive power efficiently by a method wherein a selection circuit is added, the cyclo-conver, an angle of lag of phase thereof is the nearest to 90 deg., is selected among the cyclo-converters feeding power to load every phase, and the circulation currents are controlled. CONSTITUTION:A phase advancing capacitor C is connected to a power source line BUS, and the circulation current type cyclo-converters CC-U, CC-V and CC-W are formed every phase to polyphase load and power is supplied while the phase angle and the circulation currents are controlled by means of phase control circuits PHC- U-W. The cyclo-converter, the phase angle of control thereof is the nearest to 90 deg., is selected among each cyclo-converter and the circulation currents are controlled by adding the selection circuit SLC to the reactive power control circuit. Thus, the variation of reactive power is prevented without flowing wasteful circulation currents, and the power-factor of fundamental harmonics can efficiently be controlled to maintain 100% at all times.
JP10553779A 1979-08-21 1979-08-21 Control method for reactive power compensation type cycloconverter Expired JPS5914987B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10553779A JPS5914987B2 (en) 1979-08-21 1979-08-21 Control method for reactive power compensation type cycloconverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10553779A JPS5914987B2 (en) 1979-08-21 1979-08-21 Control method for reactive power compensation type cycloconverter

Publications (2)

Publication Number Publication Date
JPS5631371A true JPS5631371A (en) 1981-03-30
JPS5914987B2 JPS5914987B2 (en) 1984-04-06

Family

ID=14410326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10553779A Expired JPS5914987B2 (en) 1979-08-21 1979-08-21 Control method for reactive power compensation type cycloconverter

Country Status (1)

Country Link
JP (1) JPS5914987B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4418380A (en) * 1981-09-24 1983-11-29 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for controlling the circulating current of a cycloconverter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613986U (en) * 1984-06-13 1986-01-11 三木 寛子 Constant pressure feeder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4418380A (en) * 1981-09-24 1983-11-29 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for controlling the circulating current of a cycloconverter

Also Published As

Publication number Publication date
JPS5914987B2 (en) 1984-04-06

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