IN157249B - - Google Patents

Info

Publication number
IN157249B
IN157249B IN594/DEL/81A IN594DE1981A IN157249B IN 157249 B IN157249 B IN 157249B IN 594DE1981 A IN594DE1981 A IN 594DE1981A IN 157249 B IN157249 B IN 157249B
Authority
IN
India
Application number
IN594/DEL/81A
Other languages
English (en)
Inventor
Peter Joseph Unsworth
Original Assignee
Nat Res Dev
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 Nat Res Dev filed Critical Nat Res Dev
Publication of IN157249B publication Critical patent/IN157249B/en

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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/26—Power factor control [PFC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
IN594/DEL/81A 1980-09-26 1981-09-16 IN157249B (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8031129 1980-09-26
GB8103681 1981-02-06
GB8119931 1981-06-29

Publications (1)

Publication Number Publication Date
IN157249B true IN157249B (de) 1986-02-15

Family

ID=27261017

Family Applications (1)

Application Number Title Priority Date Filing Date
IN594/DEL/81A IN157249B (de) 1980-09-26 1981-09-16

Country Status (8)

Country Link
US (1) US4800326A (de)
EP (1) EP0049129B1 (de)
AU (1) AU552007B2 (de)
BR (1) BR8106165A (de)
DE (1) DE3174812D1 (de)
FI (1) FI812968L (de)
IN (1) IN157249B (de)
PT (1) PT73732B (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
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EP0092370A1 (de) * 1982-04-16 1983-10-26 Conder International PLC Regeleinrichtung für Wechselstrommotoren
EP0128182B1 (de) * 1982-12-11 1987-08-12 Fairford Electronics Ltd. Verfahren und anordnung zur automatischen sollwerteinstellung der verzögerten phase in einem leistungsfaktorregler eines induktionsmotors
US4459528A (en) * 1982-12-16 1984-07-10 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Phase detector for three-phase power factor controller
GB8309226D0 (en) * 1983-04-05 1983-05-11 Fairford Electronics Ltd Start-up control method
GB8324780D0 (en) * 1983-09-15 1983-10-19 Unsworth P J Controller for induction motors
WO1990009701A1 (de) * 1989-02-07 1990-08-23 Siemens Aktiengesellschaft Verfahren und vorrichtung zur steuerung von ein- oder mehrphasigen wechselstromstellern
DE4130532C2 (de) * 1991-09-13 1995-07-13 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Regulierung von einem an ein Wechselstromnetz angeschlossenen Wechselstrommotor
US5351178A (en) * 1992-10-30 1994-09-27 Electric Power Research Institute, Inc. Active power line conditioner with a derived load current fundamental signal for fast dynamic response
US5384696A (en) * 1992-10-30 1995-01-24 Electric Power Research Institute, Inc. Active power line conditioner with fundamental negative sequence compensation
US5359275A (en) * 1992-10-30 1994-10-25 Electric Power Research Institute, Inc. Load current fundamental filter with one cycle response
US5287288A (en) * 1992-10-30 1994-02-15 Electric Power Research Institute, Inc. Active power line conditioner with low cost surge protection and fast overload recovery
CA2147257A1 (en) * 1992-10-30 1994-05-11 Steven A. Moran Active power line conditioner with synchronous transformation control
US5345377A (en) * 1992-10-30 1994-09-06 Electric Power Research Institute, Inc. Harmonic controller for an active power line conditioner
US5351180A (en) * 1992-10-30 1994-09-27 Electric Power Research Institute, Inc. Highly fault tolerant active power line conditioner
US5304911A (en) * 1992-12-14 1994-04-19 Energy Consortium Inc Power control system for an A.C. induction motor
US5412303A (en) * 1993-02-17 1995-05-02 Wernicki; Paul F. Method and apparatus providing minimal power consumption, indication of savings and fault detection
US5351181A (en) * 1993-03-12 1994-09-27 Electric Power Research Institute, Inc. Low cost active power line conditioner
US5465203A (en) * 1993-06-18 1995-11-07 Electric Power Research Institute, Inc. Hybrid series active/parallel passive power line conditioner with controlled harmonic injection
US5481171A (en) * 1994-02-07 1996-01-02 James River Corporation Of Virginia Method and apparatus for symmetrical current starting of polyphase induction motors
US5592062A (en) * 1994-03-08 1997-01-07 Bach; Daniel G. Controller for AC induction motors
US5561356A (en) * 1994-04-21 1996-10-01 Genersl Binding Corporation Shredder motor circuit with power factor correction
US5471127A (en) * 1994-05-04 1995-11-28 Energy Reduction International Ltd. Induction motor control
US5723966A (en) * 1996-08-23 1998-03-03 Current Technology, Inc. System and method for increasing the efficiency of alternating current induction motors
ES2157747B1 (es) * 1998-10-21 2002-03-01 Internat Electronics S A Sistema de potencia y control para arranque y aceleracion de motores de induccion en media y baja tension e instalacion para llevar a la practica dicho sistema.
US6418581B1 (en) 1999-06-24 2002-07-16 Ipso-Usa, Inc. Control system for measuring load imbalance and optimizing spin speed in a laundry washing machine
US6400119B1 (en) * 1999-10-26 2002-06-04 Power Conservation, Ltd. Energy conserving motor controller
GB0421443D0 (en) * 2004-09-27 2004-10-27 Unsworth Peter Point on wave (pow) control for motor starting and switching
DE102005008889B4 (de) * 2005-02-26 2016-07-07 Leybold Optics Gmbh Optisches Monitoringsystem für Beschichtungsprozesse
US7208909B2 (en) * 2005-07-29 2007-04-24 Rockwell Automation Technologies, Inc. Motor protection inhibit circuit
US8903577B2 (en) * 2009-10-30 2014-12-02 Lsi Industries, Inc. Traction system for electrically powered vehicles
US7598683B1 (en) * 2007-07-31 2009-10-06 Lsi Industries, Inc. Control of light intensity using pulses of a fixed duration and frequency
US8604709B2 (en) 2007-07-31 2013-12-10 Lsi Industries, Inc. Methods and systems for controlling electrical power to DC loads
EP2212706B1 (de) 2007-11-13 2018-05-16 Emerson Climate Technologies, Inc. Dreiphasendetektionsmodul
US8421399B2 (en) * 2008-10-24 2013-04-16 Energy Innovative Products, Llc Energy saver delay circuit for AC induction motors
DE102013202434A1 (de) * 2013-02-14 2014-08-28 Robert Bosch Gmbh Verfahren und Vorrichtung zur Begrenzung einer Leistungsaufnahme eines Elektromotors im Überlastfall in einer Handwerkzeugmaschine
US11128240B1 (en) 2020-08-13 2021-09-21 Eaton Intelligent Power Limited Reduced voltage soft starter apparatus and methods using current-controlled transitions

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441823A (en) * 1966-07-13 1969-04-29 Westinghouse Electric Corp Tachometerless induction motor speed control
DE1908726A1 (de) * 1969-02-21 1970-09-10 Bosch Gmbh Robert Anordnung zum Betreiben von in zwei Stromflussrichtungen steuerbaren Halbleiterschaltern
US4052648A (en) * 1976-07-19 1977-10-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Power factor control system for ac induction motors
US4190793A (en) * 1977-10-06 1980-02-26 Louis W. Parker Energy economizer for induction motors
JPS5454222A (en) * 1977-10-06 1979-04-28 Ruisu W Paakaa Variable magnetic field induction motor
US4176307A (en) * 1978-05-17 1979-11-27 Parker Louis W Energy economizing AC power control system
US4243926A (en) * 1978-08-10 1981-01-06 Phillips Charles A Load responsive voltage controlled motor
US4242625A (en) * 1979-05-04 1980-12-30 Louis W. Parker Energy economizer for polyphase induction motors
WO1980002895A1 (en) * 1979-05-25 1980-12-24 Scott & Fetzer Co Power factor controller for induction motor
US4266177A (en) * 1979-06-01 1981-05-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Power factor control system for AC induction motors
US4338557A (en) * 1979-08-14 1982-07-06 Wanlass Cravens Lamar Variable speed electric machine having controlled magnetic flux density
US4333046A (en) * 1979-08-15 1982-06-01 The Scott & Fetzer Company Power factor control of a three-phase induction motor
US4323835A (en) * 1980-03-05 1982-04-06 The Scott & Fetzer Company Simplified power factor controller for induction motor
US4369403A (en) * 1980-03-05 1983-01-18 The Scott & Fetzer Company Power factor controller for induction motor
US4387329A (en) * 1980-03-21 1983-06-07 Electronic Assemblers Company Three phase power-factor control system for A.C. induction motors
DE3114231A1 (de) * 1980-04-11 1982-06-16 John J. 90701 Cerritos Calif. Sullivan Motorleistungs-steuereinrichtung
ZA813290B (en) * 1980-06-03 1982-05-26 T Empson An electric power saver for starting and controlling three phase three wire a.c.induction motors
US4361793A (en) * 1980-06-05 1982-11-30 Sunbird Corporation Motor voltage controller device
US4384243A (en) * 1980-06-20 1983-05-17 Vectrol, Inc. Energy saving motor controller
US4297628A (en) * 1980-07-03 1981-10-27 Louis W. Parker Energy economizer for induction motors
US4388578A (en) * 1980-07-07 1983-06-14 Cynex Manufacturing Corporation Power factor controller
US4355274A (en) * 1980-09-08 1982-10-19 Bourbeau Frank J Load responsive control system for constant speed induction motor
US4298834A (en) * 1980-10-17 1981-11-03 Opfer Gerald D Power dissipation regulating circuit for induction motor by supply voltage control in function of phase angle
US4433276A (en) * 1980-10-23 1984-02-21 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Three phase power factor controller
IE50704B1 (en) * 1980-10-23 1986-06-25 Nasa Three phase power factor controller
US4379986A (en) * 1981-08-24 1983-04-12 Marquette Metal Products Co. Stall sensing circuit for shaded pole motors
US4469998A (en) * 1982-12-16 1984-09-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Three-phase power factor controller with induced emf sensing

Also Published As

Publication number Publication date
US4800326A (en) 1989-01-24
AU7567881A (en) 1982-04-01
EP0049129A1 (de) 1982-04-07
PT73732A (en) 1981-10-01
AU552007B2 (en) 1986-05-22
BR8106165A (pt) 1982-06-15
PT73732B (en) 1983-01-12
EP0049129B1 (de) 1986-06-11
FI812968L (fi) 1982-03-27
DE3174812D1 (en) 1986-07-17

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