GB1465522A - Control systems for induction motors - Google Patents

Control systems for induction motors

Info

Publication number
GB1465522A
GB1465522A GB214074A GB214074A GB1465522A GB 1465522 A GB1465522 A GB 1465522A GB 214074 A GB214074 A GB 214074A GB 214074 A GB214074 A GB 214074A GB 1465522 A GB1465522 A GB 1465522A
Authority
GB
United Kingdom
Prior art keywords
signal
motor
frequency
speed
actual
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
GB214074A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1465522A publication Critical patent/GB1465522A/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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/045—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/048—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using AC supply for only the rotor circuit or only the stator circuit
    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
    • 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
    • H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
    • H02P2207/01—Asynchronous machines
    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

1465522 Automatic control of speed GENERAL ELECTRIC CO 17 Jan 1974 [24 Jan 1973] 02140/74 Heading G3R In a speed control system for an induction motor, the frequency and voltage of the motor drive are controlled using a desired motor speed input applied to both frequency and voltage control paths, an actual motor speed signal being applied to only the voltage control path. The frequency is controlled according to desired motor speed input and a desired slip frequency signal, and the voltage controlled according to the actual and desired motor speeds . As shown, a frequency control signal Ws to the motor drive unit 40 is formed from the desired speed signal Wr and a desired slip frequency signal # O . The difference We between the desired speed signal and the actual motor speed signal, Wr, from a motor driven tachometer 20, passes through a PI controller 22 to form the voltage control signal E to unit 40. The desired speed signal Wr may be modified by the motor position error i.e. the difference between a desired position signal #r and actual rotor position signal #r from resolver 30. The unit 40 may be a frequency changer or a pulse width modulated inverter, and the system be analogue as Fig. 3 (not shown), digital or a hybrid system.
GB214074A 1973-01-24 1974-01-17 Control systems for induction motors Expired GB1465522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32644973A 1973-01-24 1973-01-24

Publications (1)

Publication Number Publication Date
GB1465522A true GB1465522A (en) 1977-02-23

Family

ID=23272259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB214074A Expired GB1465522A (en) 1973-01-24 1974-01-17 Control systems for induction motors

Country Status (5)

Country Link
JP (1) JPS49109816A (en)
DE (1) DE2403107A1 (en)
FR (1) FR2214995B1 (en)
GB (1) GB1465522A (en)
IT (1) IT1006141B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2367494A1 (en) * 2007-12-28 2011-11-04 Ls Industrial Systems Co., Ltd. Apparatus for controlling inverter
US20120169051A1 (en) * 2009-06-23 2012-07-05 Stephan Becker Emergency Adjustment Device for Blade Pitch Adjustment Systems for Wind Energy Installations

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323032A (en) * 1963-07-18 1967-05-30 Gen Motors Corp Electric drive system
US3611082A (en) * 1969-12-15 1971-10-05 Wisconsin Alumni Res Found Variable speed electric motor system having stator and rotor windings energized in opposite phase sequence with alternating current corresponding in angular velocity to one-half the angular velocity of the rotor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2367494A1 (en) * 2007-12-28 2011-11-04 Ls Industrial Systems Co., Ltd. Apparatus for controlling inverter
US20120169051A1 (en) * 2009-06-23 2012-07-05 Stephan Becker Emergency Adjustment Device for Blade Pitch Adjustment Systems for Wind Energy Installations
US8941351B2 (en) * 2009-06-23 2015-01-27 Robert Bosch Gmbh Emergency adjustment device for blade pitch adjustment systems for wind energy installations

Also Published As

Publication number Publication date
FR2214995B1 (en) 1977-08-19
IT1006141B (en) 1976-09-30
DE2403107A1 (en) 1974-08-08
FR2214995A1 (en) 1974-08-19
JPS49109816A (en) 1974-10-18

Similar Documents

Publication Publication Date Title
GB1397201A (en) Torque smoothing in electrical machines
KR880006834A (en) Induction Motor Electric Vehicle Control System
GB1449177A (en) Servo system and an ac motor controlled thereby
GB1504771A (en) Speed control systems
GB1187709A (en) Improvements in or relating to Slip Frequency Control of an Asynchronous Electrical Machine
GB774517A (en) Improvements in and relating to line followers
GB1111732A (en) Improved multi-unit sheet-fed printing machine
GB1371985A (en) Electronic control device in particular for use in a variable- reluctance motor
FR2045549A1 (en)
HK34492A (en) Rotational velocity control with pulse width modulation
GB1433421A (en) Strip transport arrangement
GB1523287A (en) Incrementally controllable motor drive
GB1527741A (en) Brushless dc motor rotation control
GB1438511A (en) Control system for synchronous drive of dc motor
GB1209180A (en) Improvements in or relating to electrically driven vehicles
GB1427852A (en) Method and means for measuring the torque delivered by an electric motor
GB1301094A (en) Servo system
GB1465522A (en) Control systems for induction motors
GB1122536A (en) Improvements in electric motor control systems
ES441527A1 (en) Accurate motor slip control system with speed rate limited
ES8203784A1 (en) Elevator system
ES421856A1 (en) Tape recorder
GB1487557A (en) Machine drive systems
GB914946A (en) Control system for variable speed electrical motor systems
GB990708A (en) Improvements in or relating to controllable drive motor driving arrangements

Legal Events

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