GB1123542A - Improvements relating to brushless synchronous machines - Google Patents

Improvements relating to brushless synchronous machines

Info

Publication number
GB1123542A
GB1123542A GB6176/66A GB617666A GB1123542A GB 1123542 A GB1123542 A GB 1123542A GB 6176/66 A GB6176/66 A GB 6176/66A GB 617666 A GB617666 A GB 617666A GB 1123542 A GB1123542 A GB 1123542A
Authority
GB
United Kingdom
Prior art keywords
resistor
during starting
motors
thyristors
field winding
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
GB6176/66A
Inventor
John Denis Edwards
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 GB6176/66A priority Critical patent/GB1123542A/en
Priority to DE19671613506 priority patent/DE1613506A1/en
Priority to FR94451A priority patent/FR1510754A/en
Publication of GB1123542A publication Critical patent/GB1123542A/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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/022—Synchronous motors
    • H02P25/03—Synchronous motors with brushless excitation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

1,123,542. A.C. motors with D.C. excitation; control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 16 Jan., 1967 [11 Feb., 1966], No. 6176/66. Headings H2A and H2J. In a brushless synchronous machine, e.g motor, arrangement whose field winding Fm is provided on its rotor and is energized from a co-rotating armature (E), Fig. 1, of an A.C. exciter over a rectifier bridge (RB) which is mounted for rotation with the machine and exciter rotors, and which includes a resistor R which limits the field winding terminal voltage to an acceptable value during starting and thyristors (T 1 , T 2 ) and T 3 which act as switches to shunt the rectifier bridge during starting and the resistor during synchronous running,. the resistor-shunting thyristor T 3 has its trigger connected to receive a train of pulses from a relaxation oscillator circuit which comprises a uni-junction transistor VT1 operable in response to D.C. excitation voltage produced by the arrangement. During starting, such voltage from the bridge (RB) increases until a Zener diode 24 breaks down whereupon the circuit comprising transistor VT1, capacitor C1, and resistors R3 to R6 produces in resistor R5 the triggering pulses. In other embodiments there are two or more parallel connected resistorshunting thyristors triggered by either respective or common oscillator circuits.
GB6176/66A 1966-02-11 1966-02-11 Improvements relating to brushless synchronous machines Expired GB1123542A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB6176/66A GB1123542A (en) 1966-02-11 1966-02-11 Improvements relating to brushless synchronous machines
DE19671613506 DE1613506A1 (en) 1966-02-11 1967-02-10 Excitation circuit of a brushlessly excited synchronous machine
FR94451A FR1510754A (en) 1966-02-11 1967-02-10 Improvements to synchronous electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6176/66A GB1123542A (en) 1966-02-11 1966-02-11 Improvements relating to brushless synchronous machines

Publications (1)

Publication Number Publication Date
GB1123542A true GB1123542A (en) 1968-08-14

Family

ID=9809801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6176/66A Expired GB1123542A (en) 1966-02-11 1966-02-11 Improvements relating to brushless synchronous machines

Country Status (3)

Country Link
DE (1) DE1613506A1 (en)
FR (1) FR1510754A (en)
GB (1) GB1123542A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL161628C (en) * 1974-08-22 1980-02-15 Heemaf Nv BRUSHLESS AC POWER GENERATOR WITH SELF-POWERED DEVICE AND AUTOMATIC POWER RATE CONTROL.
JPS6030200B2 (en) * 1975-08-22 1985-07-15 サンドストランド・コーポレーシヨン synchronous generator

Also Published As

Publication number Publication date
FR1510754A (en) 1968-01-19
DE1613506A1 (en) 1970-09-17

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