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GB2443597A - Power control circuit - Google Patents

Power control circuit Download PDF

Info

Publication number
GB2443597A
GB2443597A GB0805060A GB0805060A GB2443597A GB 2443597 A GB2443597 A GB 2443597A GB 0805060 A GB0805060 A GB 0805060A GB 0805060 A GB0805060 A GB 0805060A GB 2443597 A GB2443597 A GB 2443597A
Authority
GB
United Kingdom
Prior art keywords
output signal
thyristor
control circuit
signal
circuit
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
GB0805060A
Other versions
GB2443597B (en
GB0805060D0 (en
Inventor
Denis Hedley Dalby
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.)
Cummins Generator Technologies Ltd
Original Assignee
Cummins Generator Technologies 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 Cummins Generator Technologies Ltd filed Critical Cummins Generator Technologies Ltd
Publication of GB0805060D0 publication Critical patent/GB0805060D0/en
Publication of GB2443597A publication Critical patent/GB2443597A/en
Application granted granted Critical
Publication of GB2443597B publication Critical patent/GB2443597B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
    • H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
    • H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
    • H02P9/302—Brushless excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
    • H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
    • H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
    • H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
    • H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
    • H02P9/307—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage more than one voltage output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/38—Self-excitation by current derived from rectification of both output voltage and output current of generator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

A power control circuit for controlling an exciter field of a generator is disclosed. The circuit has an input for receiving an ac input signal and an output for providing a dc output signal for the exciter field. The circuit comprises a thyristor (T Y3) for producing the dc output signal, a thyristor control circuit (28) for controlling the thyristor so as to control the dc output signal, and rectification means (32) for selectively providing full wave rectification of the ac input signal. The circuit is operable in a first mode in which the thyristor control circuit (28) controls the thyristor (TY3) so as to produce a controlled dc output signal, and a second mode in which the ac input signal is full wave rectified and the full wave rectified signal is supplied as the dc output signal. This can allow a large output signal to be provided when required.
GB0805060A 2005-09-27 2006-09-22 Power control circuit Active GB2443597B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0519679.5A GB0519679D0 (en) 2005-09-27 2005-09-27 Power control circuit
PCT/GB2006/003513 WO2007036697A1 (en) 2005-09-27 2006-09-22 Power control circuit

Publications (3)

Publication Number Publication Date
GB0805060D0 GB0805060D0 (en) 2008-04-23
GB2443597A true GB2443597A (en) 2008-05-07
GB2443597B GB2443597B (en) 2011-01-19

Family

ID=35335536

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0519679.5A Ceased GB0519679D0 (en) 2005-09-27 2005-09-27 Power control circuit
GB0805060A Active GB2443597B (en) 2005-09-27 2006-09-22 Power control circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0519679.5A Ceased GB0519679D0 (en) 2005-09-27 2005-09-27 Power control circuit

Country Status (2)

Country Link
GB (2) GB0519679D0 (en)
WO (1) WO2007036697A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201103224D0 (en) * 2011-02-24 2011-04-13 Cummins Generator Technologies Protection circuitry for an electrical generator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009091A (en) * 1958-06-09 1961-11-14 Leece Neville Co Electric generating systems
GB949822A (en) * 1962-12-28 1964-02-19 Mullard Ltd Improvements in or relating to current control circuits
GB1101339A (en) * 1965-10-11 1968-01-31 Brush Electrical Eng Improvements relating to thyristors
US3899731A (en) * 1973-05-29 1975-08-12 Electric Machinery Mfg Co Voltage regulator with controlled current
US4336486A (en) * 1980-01-09 1982-06-22 Westinghouse Electric Corp. Dynamoelectric machines brushless supplemental excitation system
US4438385A (en) * 1981-05-26 1984-03-20 Hitachi, Ltd. Automatic voltage regulation system for AC generator
US4496897A (en) * 1981-11-12 1985-01-29 Lima Electric Co., Inc. Variable voltage control for self-excited self-regulated synchronous alternator
JPH0787799A (en) * 1993-09-16 1995-03-31 Isuzu Motors Ltd Controlling device for output of ac generator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009091A (en) * 1958-06-09 1961-11-14 Leece Neville Co Electric generating systems
GB949822A (en) * 1962-12-28 1964-02-19 Mullard Ltd Improvements in or relating to current control circuits
GB1101339A (en) * 1965-10-11 1968-01-31 Brush Electrical Eng Improvements relating to thyristors
US3899731A (en) * 1973-05-29 1975-08-12 Electric Machinery Mfg Co Voltage regulator with controlled current
US4336486A (en) * 1980-01-09 1982-06-22 Westinghouse Electric Corp. Dynamoelectric machines brushless supplemental excitation system
US4438385A (en) * 1981-05-26 1984-03-20 Hitachi, Ltd. Automatic voltage regulation system for AC generator
US4496897A (en) * 1981-11-12 1985-01-29 Lima Electric Co., Inc. Variable voltage control for self-excited self-regulated synchronous alternator
JPH0787799A (en) * 1993-09-16 1995-03-31 Isuzu Motors Ltd Controlling device for output of ac generator

Also Published As

Publication number Publication date
GB2443597B (en) 2011-01-19
GB0805060D0 (en) 2008-04-23
WO2007036697A1 (en) 2007-04-05
GB0519679D0 (en) 2005-11-02

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