CA2282802A1 - Apparatus and method to generate braking torque in an ac drive - Google Patents

Apparatus and method to generate braking torque in an ac drive Download PDF

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Publication number
CA2282802A1
CA2282802A1 CA002282802A CA2282802A CA2282802A1 CA 2282802 A1 CA2282802 A1 CA 2282802A1 CA 002282802 A CA002282802 A CA 002282802A CA 2282802 A CA2282802 A CA 2282802A CA 2282802 A1 CA2282802 A1 CA 2282802A1
Authority
CA
Canada
Prior art keywords
frequency
braking
braking torque
motor
drive
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
CA002282802A
Other languages
French (fr)
Other versions
CA2282802C (en
Inventor
Peter W. Hammond
Mukul Rastogi
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.)
Siemens AG
Original Assignee
Robicon 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 Robicon Corp filed Critical Robicon Corp
Publication of CA2282802A1 publication Critical patent/CA2282802A1/en
Application granted granted Critical
Publication of CA2282802C publication Critical patent/CA2282802C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor

Abstract

A device and control method to produce braking torque counter to motor rotation. A converter supplies multiple frequency AC power to the motor. A first frequency is supplied at the normal operating frequency/speed. A second frequency, different from the normal operating frequency, is supplied to produce braking torque. The level of braking can be controlled to generally consume some or all of the braking in the device or motor. More than one braking frequency may be utilized. In addition, the relationship between the normal and braking frequency(s) can be maintained to limit motor pulsation.
CA002282802A 1998-10-02 1999-09-17 Apparatus and method to generate braking torque in an ac drive Expired - Lifetime CA2282802C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10297798P 1998-10-02 1998-10-02
US60/102,977 1998-10-02
US386,677 1999-08-31
US09/386,677 US6262555B1 (en) 1998-10-02 1999-08-31 Apparatus and method to generate braking torque in an AC drive

Publications (2)

Publication Number Publication Date
CA2282802A1 true CA2282802A1 (en) 2000-04-02
CA2282802C CA2282802C (en) 2008-09-09

Family

ID=26799944

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002282802A Expired - Lifetime CA2282802C (en) 1998-10-02 1999-09-17 Apparatus and method to generate braking torque in an ac drive

Country Status (10)

Country Link
US (2) US6262555B1 (en)
JP (1) JP3435104B2 (en)
CN (1) CN1259774C (en)
AU (1) AU754287B2 (en)
BR (1) BR9904417A (en)
CA (1) CA2282802C (en)
DE (1) DE19946428B4 (en)
GB (1) GB2343306B (en)
IT (1) IT1308237B1 (en)
NL (1) NL1013189C2 (en)

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Also Published As

Publication number Publication date
IT1308237B1 (en) 2001-12-10
GB2343306A (en) 2000-05-03
AU5012699A (en) 2000-04-06
JP2000116166A (en) 2000-04-21
JP3435104B2 (en) 2003-08-11
CN1250245A (en) 2000-04-12
GB9922582D0 (en) 1999-11-24
US6262555B1 (en) 2001-07-17
US6417644B2 (en) 2002-07-09
NL1013189A1 (en) 2000-04-04
ITRM990603A0 (en) 1999-10-01
DE19946428B4 (en) 2017-11-16
US20010019253A1 (en) 2001-09-06
CN1259774C (en) 2006-06-14
BR9904417A (en) 2000-08-15
AU754287B2 (en) 2002-11-14
NL1013189C2 (en) 2002-06-21
GB2343306B (en) 2002-08-28
DE19946428A1 (en) 2000-04-27
CA2282802C (en) 2008-09-09
ITRM990603A1 (en) 2001-04-01

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