CA2047322A1 - Waveform generator for inverter control - Google Patents

Waveform generator for inverter control

Info

Publication number
CA2047322A1
CA2047322A1 CA2047322A CA2047322A CA2047322A1 CA 2047322 A1 CA2047322 A1 CA 2047322A1 CA 2047322 A CA2047322 A CA 2047322A CA 2047322 A CA2047322 A CA 2047322A CA 2047322 A1 CA2047322 A1 CA 2047322A1
Authority
CA
Canada
Prior art keywords
waveform generator
microcontroller
inverter
sector
motor
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.)
Granted
Application number
CA2047322A
Other languages
French (fr)
Other versions
CA2047322C (en
Inventor
David J. Gritter
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.)
Eaton Corp
Original Assignee
Eaton 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 Eaton Corp filed Critical Eaton Corp
Publication of CA2047322A1 publication Critical patent/CA2047322A1/en
Application granted granted Critical
Publication of CA2047322C publication Critical patent/CA2047322C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H02P27/06—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
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
    • H02M7/53873—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with digital control
    • 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
    • H02P23/0077—Characterised by the use of a particular software algorithm

Abstract

The inverter includes a low voltage microcontroller referenced to ground potential and a waveform generator coupled to the microcontroller through a serial data link including optical isolation devices.
The waveform generator floats at the negative bus potential of the DC source for the inverter. The waveform generator produces switching signals for the inverter under control of the microcomputer. The waveform generator, serial communications circuitry and other support circuits are all part of a single application specific integrated circuit.
Registers store control parameters from the microcontroller, and counters, a look up table and a state machine derive pulse width modulated switching commands to achieve motor control for a 60° sector of motor field rotation and repeat the derivation of similar switching commands for each subsequent sector. A pulse director applies the pulses to the correct motor phases for a given sector.
CA002047322A 1990-07-31 1991-07-18 Waveform generator for inverter control Expired - Fee Related CA2047322C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/560,112 US4994950A (en) 1990-07-31 1990-07-31 Waveform generator for inverter control
US560,112 1990-07-31

Publications (2)

Publication Number Publication Date
CA2047322A1 true CA2047322A1 (en) 1992-02-01
CA2047322C CA2047322C (en) 1998-04-28

Family

ID=24236425

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002047322A Expired - Fee Related CA2047322C (en) 1990-07-31 1991-07-18 Waveform generator for inverter control

Country Status (4)

Country Link
US (1) US4994950A (en)
EP (1) EP0469873B1 (en)
CA (1) CA2047322C (en)
DE (1) DE69112957T2 (en)

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DE69127664T2 (en) * 1990-07-20 1998-02-12 Toshiba Kawasaki Kk Device for generating a three-phase PWM signal for inverters
JP2950939B2 (en) * 1990-08-02 1999-09-20 株式会社日立製作所 Inverter device
JP3156269B2 (en) * 1991-04-10 2001-04-16 松下電器産業株式会社 Digital three-phase PWM waveform generator
KR950004836B1 (en) * 1991-10-21 1995-05-13 삼성전자 주식회사 Method and apparatus for measuring phase voltage of ac electromotor
US5499177A (en) * 1992-04-22 1996-03-12 Fuji Electric Co., Ltd. Inverter device with a circuit for generating pulse width modulation signals
US5400237A (en) * 1992-05-11 1995-03-21 Simmonds Precision Products, Inc. PWM inverter controller with waveform memory
US5298851A (en) * 1992-05-12 1994-03-29 Transpo Electronics, Inc. Multiple application voltage regulator system and method
US5461296A (en) * 1993-07-20 1995-10-24 Eaton Corporation Bumpless rotating start
US5486747A (en) * 1993-07-29 1996-01-23 United Technologies Motor Systems General purpose motor controller
US5386186A (en) * 1993-08-04 1995-01-31 Eaton Corporation Stator flux oriented control
US5537308A (en) * 1993-10-15 1996-07-16 Eaton Corporation Digital current regulator
US5625545A (en) * 1994-03-01 1997-04-29 Halmar Robicon Group Medium voltage PWM drive and method
US5672950A (en) * 1994-08-16 1997-09-30 Itt Corporation Voltage, phase and frequency control by miniature inverter system
US5581169A (en) * 1994-08-31 1996-12-03 Allen-Bradley Company, Inc. Apparatus used with an inverter/converter eliminating unintended voltage pulses
FR2746982B1 (en) * 1996-03-28 1998-05-07 Schneider Electric Sa FREQUENCY CONVERTER FOR RECIPROCATING MOTOR
DE19620442A1 (en) * 1996-05-21 1997-11-27 Siemens Ag Inverter system
US5793174A (en) * 1996-09-06 1998-08-11 Hunter Douglas Inc. Electrically powered window covering assembly
DE19648696A1 (en) * 1996-11-25 1998-05-28 Asea Brown Boveri Method and device for regulating the DC offset of a converter
US6069808A (en) * 1997-05-21 2000-05-30 Texas Instruments Incorporated Symmetrical space vector PWM DC-AC converter controller
US6215261B1 (en) * 1999-05-21 2001-04-10 General Electric Company Application specific integrated circuit for controlling power devices for commutating a motor based on the back emf of motor
JP4131079B2 (en) * 2000-07-12 2008-08-13 株式会社安川電機 Inverter device and current limiting method thereof
WO2003073185A2 (en) * 2002-02-28 2003-09-04 Zetacon Corporation Predictive control system and method
FI112558B (en) * 2002-05-17 2003-12-15 Vacon Oyj Inverter control
GB0213098D0 (en) * 2002-06-07 2002-07-17 Trw Ltd Motor control device
TWI256759B (en) * 2004-04-16 2006-06-11 Yu-Lin Chi Digitalized power control system
JP2006101471A (en) * 2004-09-06 2006-04-13 Hitachi Communication Technologies Ltd Multicast redundant path router, multicast redundant method
US20060268975A1 (en) * 2005-05-13 2006-11-30 Bors Douglas A Pulse width modulation (PWM) utilizing a randomly generated pattern subsequently modified to create desired control characteristics
US7535185B2 (en) * 2005-10-26 2009-05-19 Itt Manufacturing Enterprises, Inc. Method and system for implementing power reduction algorithms in a night vision system power system
JP2008236983A (en) * 2007-03-23 2008-10-02 Matsushita Electric Ind Co Ltd Motor driving apparatus and motor driving method
JP2008312342A (en) * 2007-06-14 2008-12-25 Sanden Corp Controller for electric compressor
JP2009033919A (en) * 2007-07-30 2009-02-12 Nec Electronics Corp Controller and control method of induction motor
GB0908111D0 (en) * 2009-05-12 2009-06-24 Peto Raymond J A motor controller & related method
JP5372705B2 (en) 2009-11-04 2013-12-18 株式会社日立産機システム Power converter
US9030851B2 (en) * 2010-04-30 2015-05-12 Rockwell Automation Technologies, Inc. DC bus voltage control method and system
JP5569465B2 (en) * 2010-05-28 2014-08-13 株式会社デンソー Abnormality diagnosis device for amplitude modulation device
JP5939236B2 (en) * 2013-11-29 2016-06-22 株式会社デンソー Motor control device
JP6131906B2 (en) * 2014-04-08 2017-05-24 富士電機株式会社 Limp home system, its safety control device
US9831800B2 (en) * 2016-04-21 2017-11-28 The Florida State University Research Foundation, Inc. Self-balanced modulation and magnetic rebalancing method for parallel multilevel inverters
CN112994579B (en) * 2021-03-10 2023-10-10 苏州汇川联合动力系统股份有限公司 Inverter driving signal modulation method, apparatus and computer readable storage medium

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US4656572A (en) * 1985-02-19 1987-04-07 Westinghouse Electric Corp. PWM inverter
JPH0636676B2 (en) * 1985-03-01 1994-05-11 勲 高橋 Control method of PWM inverter
JPS62118774A (en) * 1985-11-18 1987-05-30 Toshiba Corp Pulse width modulation signal generation system for inverter
JPH0697854B2 (en) * 1986-01-11 1994-11-30 株式会社日立製作所 Power converter control device
JPH0669305B2 (en) * 1986-03-05 1994-08-31 サンケン電気株式会社 Inverter motor controller
JPH0834694B2 (en) * 1986-10-25 1996-03-29 株式会社日立製作所 Control device for power converter
JPH0681513B2 (en) * 1987-11-12 1994-10-12 株式会社東芝 PWM controller
JPH0793823B2 (en) * 1988-02-01 1995-10-09 株式会社日立製作所 PWM controller for voltage source inverter
JP2821679B2 (en) * 1988-07-19 1998-11-05 株式会社日立製作所 Method and apparatus for generating gate signal of PWM inverter, PWM inverter apparatus

Also Published As

Publication number Publication date
EP0469873A2 (en) 1992-02-05
DE69112957D1 (en) 1995-10-19
EP0469873A3 (en) 1992-05-20
DE69112957T2 (en) 1996-05-15
CA2047322C (en) 1998-04-28
US4994950A (en) 1991-02-19
EP0469873B1 (en) 1995-09-13

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20050718