JPS5785580A - Controlling method for cycloconverter - Google Patents

Controlling method for cycloconverter

Info

Publication number
JPS5785580A
JPS5785580A JP15953780A JP15953780A JPS5785580A JP S5785580 A JPS5785580 A JP S5785580A JP 15953780 A JP15953780 A JP 15953780A JP 15953780 A JP15953780 A JP 15953780A JP S5785580 A JPS5785580 A JP S5785580A
Authority
JP
Japan
Prior art keywords
shortcircuit
power source
circuit
switching
signal
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
JP15953780A
Other languages
Japanese (ja)
Other versions
JPS609429B2 (en
Inventor
Toshiaki Okuyama
Yuzuru Kubota
Junichi Takahashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15953780A priority Critical patent/JPS609429B2/en
Publication of JPS5785580A publication Critical patent/JPS5785580A/en
Publication of JPS609429B2 publication Critical patent/JPS609429B2/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 prevent the production of an overcurrent due to the shortcircuit of a power source by maintaining the controlling delay angle of a normal/reverse thyristor converter to be conducted after the switching of the thyristor converter higher than the predetermined value during the predetermined period of time immediately before starting the firing of the converter. CONSTITUTION:Since currents flows through thyristor converters 1, 2 to be interrupted when a power source is shortcircuitted, a power shortcircuit detector 21 for detecting the shortcircuit of the power source is provided. This detection is carried out by judging whether or not a current flows during the period of gate OFF on the basis of the signals from a flip-flop 17 and current detectors 19, 20. When the shortcircuit of the power source is detected, the signal is transmitted through a logic circuit 22 to switching circuits 6, 7, the output signal from the switching circuit is switched to a signal from a bias setting circuit 8 for gate shift. In this manner, the current of the shortcircuit closing circuit can be rapidly reduced and vanished. Thus, it can prevent the overvoltage.
JP15953780A 1980-11-14 1980-11-14 How to control cycloconverter Expired JPS609429B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15953780A JPS609429B2 (en) 1980-11-14 1980-11-14 How to control cycloconverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15953780A JPS609429B2 (en) 1980-11-14 1980-11-14 How to control cycloconverter

Publications (2)

Publication Number Publication Date
JPS5785580A true JPS5785580A (en) 1982-05-28
JPS609429B2 JPS609429B2 (en) 1985-03-09

Family

ID=15695927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15953780A Expired JPS609429B2 (en) 1980-11-14 1980-11-14 How to control cycloconverter

Country Status (1)

Country Link
JP (1) JPS609429B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033805A2 (en) * 1999-03-03 2000-09-06 Honda Giken Kogyo K. K. Power unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033805A2 (en) * 1999-03-03 2000-09-06 Honda Giken Kogyo K. K. Power unit
EP1033805A3 (en) * 1999-03-03 2001-04-04 Honda Giken Kogyo K. K. Power unit

Also Published As

Publication number Publication date
JPS609429B2 (en) 1985-03-09

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