WO2012034417A1 - 同步发电机瞬时转速测量方法 - Google Patents
同步发电机瞬时转速测量方法 Download PDFInfo
- Publication number
- WO2012034417A1 WO2012034417A1 PCT/CN2011/075307 CN2011075307W WO2012034417A1 WO 2012034417 A1 WO2012034417 A1 WO 2012034417A1 CN 2011075307 W CN2011075307 W CN 2011075307W WO 2012034417 A1 WO2012034417 A1 WO 2012034417A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- uas
- ubc
- equal
- ual
- zero
- Prior art date
Links
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
Definitions
- the present invention relates to the field of measurement technology, and in particular, to a method for measuring instantaneous speed of a synchronous generator. Background technique
- the speed of the synchronous generator not only directly affects the output voltage and frequency, but also is an important parameter for controlling the prime mover (turbine, steam turbine or internal combustion engine). At the same time, it is precisely the guarantee of four-quadrant rectification control in the field of wind power generation.
- the speed of the generator is of great significance.
- the first method is to use a test system with a speed sensor. The structure is complicated and costly, and it is very inconvenient to install and debug. At the same time, it needs to be equipped with an interface circuit.
- the circuit design is also very troublesome; the other method is to calculate the synchronous generator speed by detecting the frequency value of a phase voltage of the synchronous generator three-phase output voltage, but this method has a long detection period and detection accuracy. Low disadvantages cannot be used in systems where instantaneous detection of rotational speed is required. Summary of the invention
- the invention provides a method for measuring the instantaneous rotation speed of a synchronous generator, which solves the problems of high complexity, high inconvenience in installation and debugging in the prior art, and realizes the measurement of the instantaneous rotation speed of the synchronous generator by executing a computer program. And the structure is simple, the operation is convenient, and the cost of the test system is reduced.
- the method for measuring the instantaneous speed of the synchronous generator provided by the present invention is sequentially performed as follows: a. The program is initialized, and Ual, Ubl, Ucl, Ua2 are all assigned to zero; b, synchronous detection of three-phase voltage instantaneous values Ua0, Ub0, UcO;
- Ual determines whether Ual is greater than or equal to Ua2 and Ual is greater than or equal to UaO, then assign Uas to zero, determine whether Uas or Ubc is equal to zero; otherwise directly determine whether Uas or Ubc is equal to zero; f, Uas or Ubc is equal to zero, then Ual
- ⁇ /2 ⁇ ⁇ display or transmit the speed through the communication interface, then assign the value of Ual to Ua2, and then assign the values of UaO, UbO, UcO to Ual, Ubl, Ucl;
- the invention can realize the measurement of the synchronous generator speed by executing a computer program, and does not need to set the speed sensor.
- the test system used has the advantages of simple structure and convenient operation, can directly reduce the test cost, and has the advantages of high detection speed and high precision.
- 1 is a flow chart of an embodiment of the present invention.
- FIG. 2 is a schematic diagram of simulation results by MATLAB according to an embodiment of the present invention. detailed description
- the upper computer of the detection system is a digital signal processor TMS320F28335, and the 16-bit data line of the AD7656 is directly connected to the 16 data bus of the TMS320F28335 in a parallel connection manner, which is simple and stable.
- TMS320F28335 is TI's latest DSP chip with 150MHz high-speed processing capability, 32-bit floating-point processing unit, digital signal processing capability, powerful event management and embedded control and floating-point operations. ability.
- the AD7656 is a 6-channel, 16b it high-accuracy, simultaneous sampling analog-to-digital converter with a rate of up to 250M kps. Selectable -5V ⁇ 5 V or -10V ⁇ +10 V bipolar analog input for sine wave output Instantaneous sampling of voltage provides convenience.
- the present invention is sequentially performed as follows:
- Uas or Ubc determine whether Ual is greater than or equal to Ua2 and Ual is greater than or equal to UaO, then assign Uas to zero, and then determine whether Uas or Ubc is equal to zero; otherwise, directly determine whether Uas or Ubc is equal to zero; f, Uas or Ubc is equal to zero, then Ual
- the three-phase AC output voltage of the 2irp synchronous generator is represented by Ua, Ub, Uc respectively:
- Equation ( 7 ) is divided by equation ( 5 ): (8)
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)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ605365A NZ605365A (en) | 2010-09-13 | 2011-06-03 | Method for measuring instantaneous rotation speed of synchronous generator |
AU2011301587A AU2011301587B2 (en) | 2010-09-13 | 2011-06-03 | Method for measuring instantaneous rotation speed of synchronous generator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010102789574A CN102004165B (zh) | 2010-09-13 | 2010-09-13 | 同步发电机瞬时转速测量方法 |
CN201010278957.4 | 2010-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012034417A1 true WO2012034417A1 (zh) | 2012-03-22 |
Family
ID=43811697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2011/075307 WO2012034417A1 (zh) | 2010-09-13 | 2011-06-03 | 同步发电机瞬时转速测量方法 |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN102004165B (zh) |
AU (1) | AU2011301587B2 (zh) |
NZ (1) | NZ605365A (zh) |
WO (1) | WO2012034417A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102004165B (zh) * | 2010-09-13 | 2013-03-27 | 中国北车集团大连机车车辆有限公司 | 同步发电机瞬时转速测量方法 |
CN102679934A (zh) * | 2012-06-01 | 2012-09-19 | 莱芜钢铁集团有限公司 | 一种电机负载位移量的获取方法及装置 |
CN102981014B (zh) * | 2012-12-11 | 2015-08-05 | 北京金风科创风电设备有限公司 | 风力发电机组的发电机转速测量设备和方法 |
CN104374939B (zh) * | 2014-11-06 | 2017-02-15 | 西安交通大学 | 基于振动信号同步压缩变换的旋转机械瞬时转速估测方法 |
CN114167074A (zh) * | 2021-11-26 | 2022-03-11 | 中国人民解放军海军工程大学 | 一种同步交流发电机转速测量***及方法 |
Citations (6)
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EP0712002B1 (de) * | 1994-11-08 | 2002-08-21 | PAPST-MOTOREN GmbH & Co. KG | Anordnung und Verfahren zur Erzeugung eines Drehzahl-Istwertsignals |
CN101358989A (zh) * | 2008-09-12 | 2009-02-04 | 长江三峡能达电气有限责任公司 | 一种基于旋转矢量法的同步发电机转速的测量方法 |
CN101452007A (zh) * | 2008-12-25 | 2009-06-10 | 中国北车集团大连机车车辆有限公司 | 内燃机车柴油机转速测量方法及设备 |
US7746063B2 (en) * | 2006-03-16 | 2010-06-29 | Itt Manufacturing Enterprises, Inc. | Speed indication for pump condition monitoring |
CN101762715A (zh) * | 2009-12-31 | 2010-06-30 | 广东电网公司电力科学研究院 | 一种汽轮发电机转子转速的测量方法及其装置 |
CN102004165A (zh) * | 2010-09-13 | 2011-04-06 | 中国北车集团大连机车车辆有限公司 | 同步发电机瞬时转速测量方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4371487B2 (ja) * | 1999-09-01 | 2009-11-25 | 東洋電機製造株式会社 | 同期電動機の位置および速度推定装置 |
CN101286725A (zh) * | 2008-04-17 | 2008-10-15 | 戴政 | 同步电机矢量控制***中电机旋转速度和转子位置推测方法 |
-
2010
- 2010-09-13 CN CN2010102789574A patent/CN102004165B/zh active Active
-
2011
- 2011-06-03 NZ NZ605365A patent/NZ605365A/en unknown
- 2011-06-03 AU AU2011301587A patent/AU2011301587B2/en active Active
- 2011-06-03 WO PCT/CN2011/075307 patent/WO2012034417A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0712002B1 (de) * | 1994-11-08 | 2002-08-21 | PAPST-MOTOREN GmbH & Co. KG | Anordnung und Verfahren zur Erzeugung eines Drehzahl-Istwertsignals |
US7746063B2 (en) * | 2006-03-16 | 2010-06-29 | Itt Manufacturing Enterprises, Inc. | Speed indication for pump condition monitoring |
CN101358989A (zh) * | 2008-09-12 | 2009-02-04 | 长江三峡能达电气有限责任公司 | 一种基于旋转矢量法的同步发电机转速的测量方法 |
CN101452007A (zh) * | 2008-12-25 | 2009-06-10 | 中国北车集团大连机车车辆有限公司 | 内燃机车柴油机转速测量方法及设备 |
CN101762715A (zh) * | 2009-12-31 | 2010-06-30 | 广东电网公司电力科学研究院 | 一种汽轮发电机转子转速的测量方法及其装置 |
CN102004165A (zh) * | 2010-09-13 | 2011-04-06 | 中国北车集团大连机车车辆有限公司 | 同步发电机瞬时转速测量方法 |
Also Published As
Publication number | Publication date |
---|---|
CN102004165A (zh) | 2011-04-06 |
AU2011301587B2 (en) | 2013-12-19 |
AU2011301587A1 (en) | 2013-01-24 |
NZ605365A (en) | 2014-03-28 |
CN102004165B (zh) | 2013-03-27 |
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