GB1292956A - Improvements in or relating to the excitation of dynamo-electric machines - Google Patents

Improvements in or relating to the excitation of dynamo-electric machines

Info

Publication number
GB1292956A
GB1292956A GB5361668A GB5361668A GB1292956A GB 1292956 A GB1292956 A GB 1292956A GB 5361668 A GB5361668 A GB 5361668A GB 5361668 A GB5361668 A GB 5361668A GB 1292956 A GB1292956 A GB 1292956A
Authority
GB
United Kingdom
Prior art keywords
winding
firing
output
field winding
rotor
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
GB5361668A
Inventor
David Benjamin Corbyn
Robert David Macgrego Whitelaw
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.)
English Electric Co Ltd
Original Assignee
English 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB5361668A priority Critical patent/GB1292956A/en
Publication of GB1292956A publication Critical patent/GB1292956A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • H02K19/12—Synchronous motors for multi-phase current characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing
    • 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
    • H02P9/36—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using armature-reaction-excited machines

Abstract

1292956 AC machines with DC excitators ENGLISH ELECTRIC CO Ltd 7 Nov 1969 [12 Nov 1968] 53616/68 Heading H2A In a dynamo-electric machine having a rotor carrying a polyphase exciter output winding 2 whose output is applied to a thyristor bridge 3 to provide the sole DC excitation of a sole main rotor field winding 4 inductively coupled to a main rotor winding 5, and an exciter stator field winding 1 inductively coupled to the exciter output winding 2, there are provided firing gear comprising a firing circuit 10 for generating pulses for firing thyristors the bridge and a polyphase winding 11 on the rotor inductively coupled to the exciter field winding 1 to proprovide an output which determines the synchronisation of the firing cycles of the thyristors, and means to apply to the circuit 10 a signal representing the required firing angle of the thyristors. The machine shown is a turbo-alternator wherein the means includes a transformer rotary coupling 17 although a capacitive or a modulated light beam transmitter may be used. Its output is maintained constant by voltage and current feedback into a comparator 15 also monitored by field winding parameters via amplifier and transformer couplings 19, 20, and the error signal, related to a reference circuit 13 is fed to a fixed frequency oscillator 16. The rotor windings 2, 11 are mutually screened by an earthed screen 12, and the excitor field winding 1 is supplied by an auxiliary permanent magnet excitor 7, 8 or the main alternator or an independent supply. The machine alternatively may be a synchronous motor in which event the control is on its power factor.
GB5361668A 1968-11-12 1968-11-12 Improvements in or relating to the excitation of dynamo-electric machines Expired GB1292956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5361668A GB1292956A (en) 1968-11-12 1968-11-12 Improvements in or relating to the excitation of dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5361668A GB1292956A (en) 1968-11-12 1968-11-12 Improvements in or relating to the excitation of dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB1292956A true GB1292956A (en) 1972-10-18

Family

ID=10468424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5361668A Expired GB1292956A (en) 1968-11-12 1968-11-12 Improvements in or relating to the excitation of dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB1292956A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362519A1 (en) * 1976-08-20 1978-03-17 Westinghouse Electric Corp BRUSHLESS EXCITATOR WITH QUICK DEEXCITATION AND PROCESS FOR REALIZING A DIRECT CURRENT EXCITATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362519A1 (en) * 1976-08-20 1978-03-17 Westinghouse Electric Corp BRUSHLESS EXCITATOR WITH QUICK DEEXCITATION AND PROCESS FOR REALIZING A DIRECT CURRENT EXCITATION

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee