GB698064A - Improvements in the high-speed control of electrical machines - Google Patents

Improvements in the high-speed control of electrical machines

Info

Publication number
GB698064A
GB698064A GB23730/51A GB2373051A GB698064A GB 698064 A GB698064 A GB 698064A GB 23730/51 A GB23730/51 A GB 23730/51A GB 2373051 A GB2373051 A GB 2373051A GB 698064 A GB698064 A GB 698064A
Authority
GB
United Kingdom
Prior art keywords
winding
generator
motor
amplidyne
exciter
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
GB23730/51A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB698064A publication Critical patent/GB698064A/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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/34—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using Ward-Leonard arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

698,064. Exciting dynamo-electric machines. MBTROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 11, 1951 [Oct. 18, 1950], No. 23730/61. Class 35. [Also in Group XXXVII] A motor 2 drives a reversible rolling mill and is supplied from a generator 1 having a fullycompensated amplidyne exciter 3, a control winding 4 of which is energized from a constant source 26 through a reverser 24, a speed-setting rheostat 21, and a resistor 23 which reduces the time-constant of the circuit of the control winding. An exciter field winding 5 opposes the winding 4 and is connected across the armature of the generator 1 so that the voltage of the generator is substantially independent of the speed at which it is driven. A winding 7 is wound on the poles of the main generator so as to be energized in accordance with the rate-ofchange of generator flux and voltage, the exciter having a field winding 8 connected to the winding 7 and operating to restrict the acceleration of the motor. An excessive rate-of-change of motor armature current is prevented by means of a transformer secondary winding 11 which is connected to both a field winding 14 of the exciter 3 and the brushes 12, 13. The transformer may be replaced by an inductive shunt, or it may have two secondary windings feeding the winding 14 and the brushes 12, 13, separately. A motor field winding 16 is supplied from the source 26 through an undercompensated amplidyne 17 which opposes the voltage of the source and provides a rapid change of motor field excitation. Opposing amplidyne field windings 18, 19 are energized from the source .26, the winding 18 being controlled by a rheostat 22 which is interlocked with rheostat 21. A too rapid response of the amplidyne 17 is prevented by means of winding 27 which is connected to winding 28 linking the cross-flux of the machine. Rectifiers 29 are provided for more sensitive operation.
GB23730/51A 1950-10-18 1951-10-11 Improvements in the high-speed control of electrical machines Expired GB698064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR698064X 1950-10-18

Publications (1)

Publication Number Publication Date
GB698064A true GB698064A (en) 1953-10-07

Family

ID=9047497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23730/51A Expired GB698064A (en) 1950-10-18 1951-10-11 Improvements in the high-speed control of electrical machines

Country Status (1)

Country Link
GB (1) GB698064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131778B (en) * 1957-05-17 1962-06-20 Bbc Brown Boveri & Cie Arrangement for monitoring, regulating or limiting the acceleration of a Leonard motor fed by a Leonard generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131778B (en) * 1957-05-17 1962-06-20 Bbc Brown Boveri & Cie Arrangement for monitoring, regulating or limiting the acceleration of a Leonard motor fed by a Leonard generator

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