GB935274A - Improvements in and relating to a.c. machine control equipment - Google Patents

Improvements in and relating to a.c. machine control equipment

Info

Publication number
GB935274A
GB935274A GB2562761A GB2562761A GB935274A GB 935274 A GB935274 A GB 935274A GB 2562761 A GB2562761 A GB 2562761A GB 2562761 A GB2562761 A GB 2562761A GB 935274 A GB935274 A GB 935274A
Authority
GB
United Kingdom
Prior art keywords
frequency
frequency changer
network
changer
turbine
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
GB2562761A
Inventor
Owen Edgar Wright
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB2562761A priority Critical patent/GB935274A/en
Priority to DE19621413646 priority patent/DE1413646A1/en
Publication of GB935274A publication Critical patent/GB935274A/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
    • H02P9/42—Arrangements for controlling electric generators for the purpose of obtaining a desired output to obtain desired frequency without varying speed of the generator
    • 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
    • H02P2101/00—Special adaptation of control arrangements for generators
    • H02P2101/30—Special adaptation of control arrangements for generators for aircraft

Landscapes

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

Abstract

935,274. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 29, 1962 [July 14, 1961], No. 25627/61. Class 38 (3). [Also in Group XXXV] A polyphase dynamo-electric machine 1 operates as a motor to start gas turbine 2, and as a generator driven by the turbine to supply current to a load network operating at constant frequency. When the machine 1 is motoring, power is drawn from network 7 through frequency changer 6 comprising semi-conductor converters. One winding of a tachometer generator 3 is energized through line 13 from a source of low frequency and amplitude, the other winding supplies a reference signal to the frequency changer which also receives a control voltage through switch 9s. When the machine operates as an alternator, its output frequency is reduced by the frequency changer 6 to the value required by network 7. Direct-current excitation is applied through terminals 4, 5, and control signals for the frequency changer are supplied from line 11. Reference signals corresponding to the frequency of the network are supplied to the frequency changer from a local oscillator. When several turbines are equipped as described, the reference signals of supply frequency may be derived from a frequency changer associated with a turbine whichhas already started.
GB2562761A 1961-07-14 1961-07-14 Improvements in and relating to a.c. machine control equipment Expired GB935274A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2562761A GB935274A (en) 1961-07-14 1961-07-14 Improvements in and relating to a.c. machine control equipment
DE19621413646 DE1413646A1 (en) 1961-07-14 1962-07-13 Control arrangement for alternating current machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2562761A GB935274A (en) 1961-07-14 1961-07-14 Improvements in and relating to a.c. machine control equipment

Publications (1)

Publication Number Publication Date
GB935274A true GB935274A (en) 1963-08-28

Family

ID=10230727

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2562761A Expired GB935274A (en) 1961-07-14 1961-07-14 Improvements in and relating to a.c. machine control equipment

Country Status (2)

Country Link
DE (1) DE1413646A1 (en)
GB (1) GB935274A (en)

Also Published As

Publication number Publication date
DE1413646A1 (en) 1968-10-10

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