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AU2011301587A1 - Method for measuring instantaneous rotation speed of synchronous generator - Google Patents

Method for measuring instantaneous rotation speed of synchronous generator Download PDF

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Publication number
AU2011301587A1
AU2011301587A1 AU2011301587A AU2011301587A AU2011301587A1 AU 2011301587 A1 AU2011301587 A1 AU 2011301587A1 AU 2011301587 A AU2011301587 A AU 2011301587A AU 2011301587 A AU2011301587 A AU 2011301587A AU 2011301587 A1 AU2011301587 A1 AU 2011301587A1
Authority
AU
Australia
Prior art keywords
uas
equal
ubc
rotation speed
synchronous generator
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
AU2011301587A
Other versions
AU2011301587B2 (en
Inventor
Zhiwei Cai
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.)
CRRC Dalian Co Ltd
Original Assignee
CNR Dalian Locomotive and Rolling Stock Co Ltd
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 CNR Dalian Locomotive and Rolling Stock Co Ltd filed Critical CNR Dalian Locomotive and Rolling Stock Co Ltd
Publication of AU2011301587A1 publication Critical patent/AU2011301587A1/en
Application granted granted Critical
Publication of AU2011301587B2 publication Critical patent/AU2011301587B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
    • 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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
    • H02P21/18—Estimation of position or speed
    • 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
    • H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
    • H02P2203/09—Motor speed determination based on the current and/or voltage without using a tachogenerator or a physical encoder

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Control Of Eletrric Generators (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

A method for measuring the instantaneous rotation speed of a synchronous generator, comprises the following steps: a. initializing a program and zeroizing Ua1, Ub1, Uc1 and Ua2 (201); b. synchronously detecting three-phase instantaneous voltage values Ua0, Ub0, and Uc0 (202); c. calculating an integral value Uas of Ua1 (203); d. calculating a difference value Ubc between Ub1 and Uc1 (204); e. judging whether Ua1 is greater than or equal to Ua2 and Ua1 is greater than or equal to Ua0 (205), if so, zeroizing Uas (206) and then judging whether Uas or Ubc is equal to 0 or not (207), if not, directly judging whether Uas or Ubc is equal to 0 or not (207); f. if Uas or Ubc is equal to 0, assigning the value of Ua1 to Ua2 (211), and then respectively assigning values of Ua0, Ub0 and Uc0 to Ua1, Ub1 and Uc1 (212); when Uas and Ubc are not equal to 0, calculating a ratio

Description

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AU2011301587A 2010-09-13 2011-06-03 Method for measuring instantaneous rotation speed of synchronous generator Active AU2011301587B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN2010102789574A CN102004165B (en) 2010-09-13 2010-09-13 Method for measuring instantaneous rotation speed of synchronous generator
CN201010278957.4 2010-09-13
PCT/CN2011/075307 WO2012034417A1 (en) 2010-09-13 2011-06-03 Method for measuring instantaneous rotation speed of synchronous generator

Publications (2)

Publication Number Publication Date
AU2011301587A1 true AU2011301587A1 (en) 2013-01-24
AU2011301587B2 AU2011301587B2 (en) 2013-12-19

Family

ID=43811697

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2011301587A Active AU2011301587B2 (en) 2010-09-13 2011-06-03 Method for measuring instantaneous rotation speed of synchronous generator

Country Status (4)

Country Link
CN (1) CN102004165B (en)
AU (1) AU2011301587B2 (en)
NZ (1) NZ605365A (en)
WO (1) WO2012034417A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102004165B (en) * 2010-09-13 2013-03-27 中国北车集团大连机车车辆有限公司 Method for measuring instantaneous rotation speed of synchronous generator
CN102679934A (en) * 2012-06-01 2012-09-19 莱芜钢铁集团有限公司 Acquisition method and device of load displacement of motor
CN102981014B (en) * 2012-12-11 2015-08-05 北京金风科创风电设备有限公司 Device and method for measuring generator speed of a wind power generating set
CN104374939B (en) * 2014-11-06 2017-02-15 西安交通大学 Rotary machine instantaneous rotation speed estimation method based on vibration signal synchronous compression transformation
CN114167074A (en) * 2021-11-26 2022-03-11 中国人民解放军海军工程大学 System and method for measuring rotating speed of synchronous alternating-current generator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0712002B1 (en) * 1994-11-08 2002-08-21 PAPST-MOTOREN GmbH & Co. KG Apparatus and method for generating an instantaneous value signal of a number of revolutions
JP4371487B2 (en) * 1999-09-01 2009-11-25 東洋電機製造株式会社 Synchronous motor position and speed estimation device
US7746063B2 (en) * 2006-03-16 2010-06-29 Itt Manufacturing Enterprises, Inc. Speed indication for pump condition monitoring
CN101286725A (en) * 2008-04-17 2008-10-15 戴政 Deriving method of motor rotative velocity and location of rotor in synchronous electric machine vector control system
CN101358989A (en) * 2008-09-12 2009-02-04 长江三峡能达电气有限责任公司 A Measuring Method of Synchronous Generator Speed Based on Rotation Vector Method
CN101452007B (en) * 2008-12-25 2010-12-08 中国北车集团大连机车车辆有限公司 Diesel engine rotating velocity measurement method and apparatus for diesel locomotive
CN101762715B (en) * 2009-12-31 2011-09-07 广东电网公司电力科学研究院 Method for measuring rotor speed of turbo generator and device thereof
CN102004165B (en) * 2010-09-13 2013-03-27 中国北车集团大连机车车辆有限公司 Method for measuring instantaneous rotation speed of synchronous generator

Also Published As

Publication number Publication date
WO2012034417A1 (en) 2012-03-22
NZ605365A (en) 2014-03-28
AU2011301587B2 (en) 2013-12-19
CN102004165A (en) 2011-04-06
CN102004165B (en) 2013-03-27

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