GB897963A - Improvements in polyphase alternating current servo systems - Google Patents

Improvements in polyphase alternating current servo systems

Info

Publication number
GB897963A
GB897963A GB3326357A GB3326357A GB897963A GB 897963 A GB897963 A GB 897963A GB 3326357 A GB3326357 A GB 3326357A GB 3326357 A GB3326357 A GB 3326357A GB 897963 A GB897963 A GB 897963A
Authority
GB
United Kingdom
Prior art keywords
voltage
alternating current
current servo
servo systems
polyphase alternating
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
GB3326357A
Inventor
Norman Milne
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 GB3326357A priority Critical patent/GB897963A/en
Publication of GB897963A publication Critical patent/GB897963A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1418—Control of position or direction using feedback using an analogue comparing device with ac amplifier chain
    • 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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/10—Controlling by adding a dc current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

897,963. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 24, 1958 [Oct. 24, 1957], No. 33263/57. Class 38 (3). A two-phase servomotor 1 has one winding 2 fed with a reference A.C. voltage, and the. other winding 3 fed from a transformer TR with a voltage in quadrature with the reference voltage, to which is added a small D.C. voltage developed across a series resistor RE. The D.C. voltage produces small oscillations of the rotor which tend to reduce the effects of friction and " stiction." Specification 764,588 is referred to.
GB3326357A 1957-10-24 1957-10-24 Improvements in polyphase alternating current servo systems Expired GB897963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3326357A GB897963A (en) 1957-10-24 1957-10-24 Improvements in polyphase alternating current servo systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3326357A GB897963A (en) 1957-10-24 1957-10-24 Improvements in polyphase alternating current servo systems

Publications (1)

Publication Number Publication Date
GB897963A true GB897963A (en) 1962-06-06

Family

ID=10350658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3326357A Expired GB897963A (en) 1957-10-24 1957-10-24 Improvements in polyphase alternating current servo systems

Country Status (1)

Country Link
GB (1) GB897963A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30068E (en) 1974-04-17 1979-08-07 Hobart Corporation Pulsating torque apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30068E (en) 1974-04-17 1979-08-07 Hobart Corporation Pulsating torque apparatus and method

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