WO1999013563A3 - A method of linearizing the performance of switched reluctance generators - Google Patents

A method of linearizing the performance of switched reluctance generators Download PDF

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Publication number
WO1999013563A3
WO1999013563A3 PCT/US1998/018835 US9818835W WO9913563A3 WO 1999013563 A3 WO1999013563 A3 WO 1999013563A3 US 9818835 W US9818835 W US 9818835W WO 9913563 A3 WO9913563 A3 WO 9913563A3
Authority
WO
WIPO (PCT)
Prior art keywords
switched reluctance
reluctance generator
calculated
phase
current
Prior art date
Application number
PCT/US1998/018835
Other languages
French (fr)
Other versions
WO1999013563A2 (en
Inventor
William S Heglund
Original Assignee
Sundstrand Corp
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 Sundstrand Corp filed Critical Sundstrand Corp
Priority to CA002303043A priority Critical patent/CA2303043A1/en
Priority to EP98946914A priority patent/EP1021860A2/en
Publication of WO1999013563A2 publication Critical patent/WO1999013563A2/en
Publication of WO1999013563A3 publication Critical patent/WO1999013563A3/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
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/40—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of reluctance of magnetic circuit of generator
    • 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
    • H02P25/08—Reluctance motors
    • H02P25/092—Converters specially adapted for controlling reluctance motors

Abstract

A method of linearizing the output performance of a switched reluctance generator comprises the steps of exciting the switched reluctance generator during a first phase of operation at a turn-on angle which needs not be accurately calculated to produce the desired excitation current. Next, during a second phase of commutation, the switched reluctance generator is freewheeled when a phase current of the switched reluctance generator exceeds a first calculated current level. This freewheeling continues until the phase current of the switched reluctance generator exceeds a second calculated current level, at which point the switched reluctance generator enters the generation phase of its commutation cycle. The linearization of the performance occurs because the first and second calculated current levels are calculated as a function of energy converted per electrical cycle. This function of energy converted per electrical cycle is calculated using an inductance of the switched reluctance generator in an aligned position and an inductance of the switched reluctance generator in an unaligned position. The shape of a graph of the flux linkage versus the phase current is controlled through the selection of the first and second calculated current levels which increases efficiency while linearizing the performance of the switched reluctance generator. The area enclosed by this graph is equal to the energy converted per electrical cycle.
PCT/US1998/018835 1997-09-10 1998-09-09 A method of linearizing the performance of switched reluctance generators WO1999013563A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002303043A CA2303043A1 (en) 1997-09-10 1998-09-09 A method of linearizing the performance of switched reluctance generators
EP98946914A EP1021860A2 (en) 1997-09-10 1998-09-09 A method of linearizing the performance of switched reluctance generators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/926,511 1997-09-10
US08/926,511 US5936386A (en) 1997-09-10 1997-09-10 Method of linearizing the performance of switched reluctance generators

Publications (2)

Publication Number Publication Date
WO1999013563A2 WO1999013563A2 (en) 1999-03-18
WO1999013563A3 true WO1999013563A3 (en) 1999-05-06

Family

ID=25453315

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/018835 WO1999013563A2 (en) 1997-09-10 1998-09-09 A method of linearizing the performance of switched reluctance generators

Country Status (4)

Country Link
US (1) US5936386A (en)
EP (1) EP1021860A2 (en)
CA (1) CA2303043A1 (en)
WO (1) WO1999013563A2 (en)

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US6469468B1 (en) 1999-07-05 2002-10-22 Nissan Motor Co., Ltd. SR motor controlling method and SR motor having low peak of current flowing therein
US6483212B1 (en) * 1999-10-06 2002-11-19 Asmo Co., Ltd. Reluctance-type electric motor
GB9928843D0 (en) * 1999-12-06 2000-02-02 Lucas Industries Ltd Switched reluctance generator and a method of controlling such a generator
CA2399699A1 (en) 2000-02-09 2001-08-16 Dana Corporation Method for operating a switched reluctance electrical generator
US6703808B1 (en) * 2001-10-31 2004-03-09 Dana Corporation Active power limiting for starter/alternator in the generation mode
US6661206B2 (en) 2001-12-10 2003-12-09 Delphi Technologies, Inc. Soft chopping for switched reluctance generators
US6672522B2 (en) * 2002-02-28 2004-01-06 Koo Shik Lee Wind power generating system
TW200402929A (en) * 2002-07-22 2004-02-16 Switched Reluctance Drives Ltd Control of a switched reluctance drive
DE10357501A1 (en) * 2003-12-09 2005-07-21 BSH Bosch und Siemens Hausgeräte GmbH Control of a brushless DC motor
US7071659B1 (en) * 2004-01-23 2006-07-04 Dana Corporation Closed loop control of excitation parameters for high speed switched-reluctance generators
US7002317B2 (en) * 2004-02-18 2006-02-21 Honeywell International Inc. Matched reactance machine power-generation system
KR100704482B1 (en) * 2005-04-01 2007-04-09 엘지전자 주식회사 A switched reluctance generator with enhanced generating efficiency at low and high speed
US7852183B2 (en) * 2005-11-14 2010-12-14 Honeywell International Inc. Power drive unit electromagnetic latch
GB0618751D0 (en) * 2006-09-22 2006-11-01 Switched Reluctance Drives Ltd Operating electrical machines from a DC link
US7777385B2 (en) * 2008-05-15 2010-08-17 Honeywell International Inc. Compact, electromagnetically braked actuator assembly
US8324745B2 (en) * 2009-07-16 2012-12-04 GM Global Technology Operations LLC Free-piston linear alternator systems and methods
US8405366B2 (en) * 2010-10-19 2013-03-26 Adlee Powertronic Co., Ltd. Method for controlling generation of electrical power
RU2469455C2 (en) * 2011-01-19 2012-12-10 Александр Владимирович Карасев Generator of valve type
RU2479098C2 (en) * 2011-06-07 2013-04-10 Александр Дмитриевич Петрушин Valve inductor generator
WO2013116506A1 (en) * 2012-02-03 2013-08-08 Green Ray Technologies Llc Electric machines and methods of making same
CN102904515B (en) * 2012-10-22 2015-03-04 中国矿业大学 Control method for non-position sensor of switch reluctance generator
JP6036640B2 (en) * 2013-02-28 2016-11-30 株式会社デンソー Switched reluctance motor controller
GB201500499D0 (en) * 2015-01-13 2015-02-25 Rolls Royce Controls & Data Services Ltd Generator and method for controlling a generator
CN104638990B (en) * 2015-02-06 2017-06-20 南京工程学院 A kind of asymmetric exciting method of single coil multi-phase magnetic suspension switch reluctance generator
CN110299878B (en) * 2019-05-24 2021-05-25 南京航空航天大学 Control method of electro-magnetic doubly salient motor angle position semi-control power generation control system

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US5204604A (en) * 1992-02-28 1993-04-20 General Electric Company Linearizer for a switched reluctance generator
EP0736962A2 (en) * 1995-04-04 1996-10-09 Switched Reluctance Drives Ltd Controller for a switched reluctance machine

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US5289107A (en) * 1992-03-30 1994-02-22 General Electric Company Switched reluctance generator system with fault recovery capability
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204604A (en) * 1992-02-28 1993-04-20 General Electric Company Linearizer for a switched reluctance generator
EP0736962A2 (en) * 1995-04-04 1996-10-09 Switched Reluctance Drives Ltd Controller for a switched reluctance machine

Also Published As

Publication number Publication date
CA2303043A1 (en) 1999-03-18
WO1999013563A2 (en) 1999-03-18
EP1021860A2 (en) 2000-07-26
US5936386A (en) 1999-08-10

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