GB849690A - Improvements in or relating to control apparatus for syncbronous electric machines - Google Patents

Improvements in or relating to control apparatus for syncbronous electric machines

Info

Publication number
GB849690A
GB849690A GB3417257A GB3417257A GB849690A GB 849690 A GB849690 A GB 849690A GB 3417257 A GB3417257 A GB 3417257A GB 3417257 A GB3417257 A GB 3417257A GB 849690 A GB849690 A GB 849690A
Authority
GB
United Kingdom
Prior art keywords
voltage
output
winding
magnetic amplifier
excitation
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.)
Expired
Application number
GB3417257A
Inventor
Kenneth Charles Parton
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3417257A priority Critical patent/GB849690A/en
Publication of GB849690A publication Critical patent/GB849690A/en
Expired legal-status Critical Current

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
    • H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
    • H02P9/105—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for increasing the stability

Landscapes

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

Abstract

849,690. Automatic voltage control systems. GENERAL ELECTRIC CO. Ltd. Oct. 20, 1958 [Nov. 1, 1957], No. 34172/57. Class 38 (4). To prevent an A.C. machine 1 falling out of step, the excitation is increased by means of a magnetic amplifier when the phase angle between the rotor and rotating field exceeds a predetermined amount. The output from an A.C. permanent magnet generator 20 attached to the rotor is compared in phase with a voltage representative of the stator voltage across a resistor 19, the resultant voltage being applied together with a voltage from transformer secondary winding 10 through rectifiers 21, 12, respectively, to the signal winding 13 of a magnetic amplifier 14. The amplifier output is biased by a blocking rectifier 23 and a voltage derived from a rectifier 22, so that when the output exceeds the bias voltage a second control winding 7 assisting the normal control winding 6 of an automatic voltage regulator 5 increases the excitation of the machine. The magnetic amplifier may be of the auto-excited type.
GB3417257A 1957-11-01 1957-11-01 Improvements in or relating to control apparatus for syncbronous electric machines Expired GB849690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3417257A GB849690A (en) 1957-11-01 1957-11-01 Improvements in or relating to control apparatus for syncbronous electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3417257A GB849690A (en) 1957-11-01 1957-11-01 Improvements in or relating to control apparatus for syncbronous electric machines

Publications (1)

Publication Number Publication Date
GB849690A true GB849690A (en) 1960-09-28

Family

ID=10362283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3417257A Expired GB849690A (en) 1957-11-01 1957-11-01 Improvements in or relating to control apparatus for syncbronous electric machines

Country Status (1)

Country Link
GB (1) GB849690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015138554A1 (en) * 2014-03-12 2015-09-17 General Electric Company Brushless permanent magnet generator plus auxiliary voltage source constant potential exciter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015138554A1 (en) * 2014-03-12 2015-09-17 General Electric Company Brushless permanent magnet generator plus auxiliary voltage source constant potential exciter
US9252695B2 (en) 2014-03-12 2016-02-02 General Electric Company Brushless permanent magnet generator plus auxiliary voltage source constant potential exciter
CN106063118A (en) * 2014-03-12 2016-10-26 通用电气公司 Brushless permanent magnet generator plus auxiliary voltage source constant potential exciter

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