WO2011160564A1 - Novel testing system and method for mw-level wind driven generator set - Google Patents

Novel testing system and method for mw-level wind driven generator set Download PDF

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Publication number
WO2011160564A1
WO2011160564A1 PCT/CN2011/075883 CN2011075883W WO2011160564A1 WO 2011160564 A1 WO2011160564 A1 WO 2011160564A1 CN 2011075883 W CN2011075883 W CN 2011075883W WO 2011160564 A1 WO2011160564 A1 WO 2011160564A1
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WO
WIPO (PCT)
Prior art keywords
power
cabinet
test
generator
tested
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PCT/CN2011/075883
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French (fr)
Chinese (zh)
Inventor
霍连文
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西安久和能源科技有限公司
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Publication date
Priority to CN 201010209749 priority Critical patent/CN101881814B/en
Priority to CN201010209749.9 priority
Application filed by 西安久和能源科技有限公司 filed Critical 西安久和能源科技有限公司
Publication of WO2011160564A1 publication Critical patent/WO2011160564A1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34Testing dynamo-electric machines
    • G01R31/343Testing dynamo-electric machines in operation

Abstract

A novel testing system and method for the MW-level wind driven generator set is presented. The electric power fed by the network is supplied to a drag motor with double extended shaft by a series of devices. The drag motor drives the generator set to be tested by a series of devices, including a wind wheel simulator. The power generated by the generator set to be tested is fed back to a distribution transformer by a series of devices. The energy feedback is achieved then. The generator set to be tested can simulate the wind driven generator characteristic on different wind power using the wind wheel simulator. The output characteristic of the generator set to be tested can be detected by the measurement system. In the same time, the low voltage ride through capability of the generator set can be tested by setting a LVRT device on the power feedback link. The invention has such advantages as that, energy can be saved, the system configuration is flexible and the power range is wide, the controlling performance and the output power feature of the generator set can be tested, the low voltage ride through capability of the generator set can be tested by the LVRT device, the testing system has strong compatibility and expandability, the test condition on the spot can be known in a timely manner so as to satisfy the multilateral test demands.

Description

 A new type of megawatt wind turbine test system and test method thereof

 The invention belongs to the field of wind power generation equipment, and relates to a novel megawatt wind turbine test system and a test method thereof, which can meet the requirements of various domestic 0~5. 6MW wind turbine test sets, and can be used for key components of the whole machine and The system tests and detects the unit power curve, low voltage ride through, power quality, and so on. Its design standards are high, advanced and economical.

BACKGROUND OF THE INVENTION In recent years, wind energy has been widely used as a clean energy source, and one of the effective utilization methods is wind power generation. As the power of wind turbines continues to increase and the product structure continues to be optimized, the types of generators are also constantly upgrading. Asynchronous generators, doubly-fed generators, electrically excited synchronous generators, and permanent magnet generators have emerged. The wind turbines produced must first be tested in the factory through the wind power test system to meet the design requirements before being delivered to the wind farm.

 At present, most of the existing fan test systems do not have the low voltage ride-through test capability of the unit, and the test state cannot be monitored in real time. The wind turbine characteristics cannot be effectively simulated, and the test and working state simulation of the wind power generation quality cannot be well solved. , can only be tested specifically for one type of fan. The invention is based on IEC61400 series, IEC 60349-2 and other standards. According to the principle of mature wind power test bench design and the principle of using components, the invention overcomes the limitations of the existing test benches in China, and appropriately refers to the development direction and the latest technology of foreign wind power test systems. Designed in combination with the actual situation in the country, the above problems are well solved. Summary of the invention:

 The invention provides a novel MW-class wind turbine test system and a test method thereof, and adopts a dual-shaft extension and drag motor structure and an energy feedback method to realize full power test of various wind turbines in a high power range. And testing of key components. The energy provided by the grid is supplied to the biaxial extension and drag motor through a series of devices. The motor is driven by a series of devices such as a wind turbine simulator to drive the unit to be operated. The electric energy generated by the unit is passed through a series of devices. The electric energy is returned to the distribution transformer to realize energy feedback; the wind turbine simulator can simulate the characteristics of the wind turbine under different wind conditions by means of the wind turbine simulator, and the output characteristics of the tested unit can be detected through the test system; The LVRT device is installed in the link to test the low voltage ride through performance of the test unit.

The object of the present invention is to provide a megawatt wind turbine test system, which comprises a 10kv incoming switchgear, a distribution transformer, a power receiving cabinet, a full power converter, a dual shaft extension drag motor, a coupling Twist Moment meter, reduction gear box, wind wheel simulator, converter (different converters with different converters), transfer switch cabinet, feeder cabinet, plc, center console and power quality analyzer, power meter, Measuring equipment such as waveform recorder; industrial power grid is connected to distribution transformer through 10kv incoming switchgear, distribution transformer will reduce voltage to 690V and supply drive cabinet and full power converter to drive drag motor; The two ends (or one end) of the motor are connected to the coupling, the torque meter, the reduction gear box and the wind wheel simulator in turn; the wind wheel simulator is connected with the corresponding wind generator to generate electric energy; the generator then passes the corresponding converter (Double-fed converter or full-power converter) is connected with the transfer switch cabinet; the transfer switch cabinet feeds current to the distribution transformer through the feed cabinet to form a complete current loop; The electrical cabinet, the feeder cabinet and all the converters are connected to the plc and the console through the optical fiber; the power quality analyzer analyzes the power quality of the key points (see Figure 1 for the location) and the power measurement. Waveform analyzer and the like recorder connected to the measurement device after switching on the switchgear current generated was measured, LVRT means for detecting the test unit LVRT.

 The invention has the advantages that: the test system adopts the energy feedback method, which can save electric energy; the double shaft extension and drag motor structure is used alone or in series, the system configuration is flexible, and the applicable power range is wide; the wind wheel simulator can simulate different wind conditions The characteristics of the wind turbine can test the control performance and output power characteristics of the tested unit. The LVRT device can detect the low voltage ride-through capability of the tested unit. The test system adopts the internationally-used industrial-grade communication protocol, interface and communication network. Strong compatibility and scalability; The system is designed with a comprehensive remote video surveillance and data display system to keep abreast of the test situation on site and meet multi-faceted test requirements. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a megawatt wind turbine test system of the present invention;

 2 is a schematic structural view of a dual-shaft extension and drag motor of the present invention;

 The present invention will be further described in detail below with reference to the accompanying drawings:

Referring to Figures 1 and 2, a megawatt wind turbine test system consists of a 10kv incoming switchgear, distribution transformer, power receiving cabinet, full power converter, dual shaft extension drive motor, coupling , torque meter, reduction gear box, wind wheel simulator, converter (different converters with different converters), transfer switch cabinet, feeder cabinet, plc, center console and power quality analyzer, power meter Measuring equipment such as waveform recorder; the industrial power grid is connected to the distribution transformer through the 10kv incoming switchgear, the distribution transformer reduces the voltage to 690V and is supplied to the power receiving cabinet and the full power converter to drive the drag motor; Both ends of the motor (also one end) Connect the coupling, torque meter, reduction gear box and wind wheel simulator in turn; the wind wheel simulator is connected to the corresponding wind turbine to generate electric energy; the generator then passes the corresponding converter (Double-fed converter or full The power converter is connected to the transfer switch cabinet; the transfer switch cabinet feeds current to the distribution transformer through the feed cabinet to form a complete current loop; the power control cabinet, the power receiving cabinet, the power supply cabinet and all The converter is connected to the plc and the console through the optical fiber; the power quality analyzer analyzes the power quality of the key points (see Figure 1 for details), and the measuring devices such as the power meter and the waveform recorder are connected to the transfer switch cabinet. The generated current is then measured and the LVRT device is used to detect the low voltage ride through capability of the test unit.

 The two-axis extension and drag motor of the test system has an output shaft at both ends, and can be loaded at both ends. The motor has the following advantages: (1) It is convenient to carry out the test of different types of units separately at both ends, and also facilitates the construction of the test bench foundation. One end can test the high speed motor, and the other end can be tested by adding a reduction gear box, an adapter, etc. (2) It is convenient to realize expansion and phased construction. The construction of test stations with staged capacity can be realized by using two identical motors; (3) One-time investment can be reduced, due to the test capacity range of the test station (0 MW) ~5. 6MW) is large, the number of inputs to the drag motor and the corresponding inverter can be determined according to the test test capacity requirements. If the capacity of the test equipment is less than 2.8 MW, it is possible to operate a drive motor and a frequency converter; otherwise, two identical motors and corresponding frequency converters can be used to facilitate the test of equipment with a capacity greater than 2. 8 MW; (4) It is possible to reduce the difficulty of driving the inverter for the motor. Two dual-axis extension motors can be used to respectively provide a frequency converter with a corresponding capacity, which reduces the difficulty in manufacturing low-voltage and high-power inverters. The above is a detailed description of the present invention in conjunction with the specific preferred embodiments, and the specific embodiments of the present invention are not limited thereto, and those skilled in the art to which the present invention pertains, without departing from the inventive concept. In the following, a number of simple derivations or substitutions may be made, which should be considered as belonging to the invention as defined by the appended claims.

Claims

Claim
 1. Megawatt wind turbine test system, which is characterized by: The system includes 10kv incoming switchgear, distribution transformer, power receiving cabinet, full power converter, double shaft extension and drag motor, coupling, torque Instrument, reduction gearbox, wind turbine simulator, converter, transfer switchgear, feeder cabinet, plc, center console and measuring equipment; industrial power grid connected to distribution transformer through 10kv incoming switchgear, distribution transformer The voltage is reduced to 690V and supplied to the power receiving cabinet and the full power converter to drive the drag motor; the two ends of the two-axle extension motor are connected to the coupling, the torque meter, the reduction gear box and the wind wheel simulator in sequence; The wheel simulator is connected to the corresponding wind turbine to generate electric energy; the generator is connected to the transfer switch cabinet through a doubly-fed converter or a full-power converter; the transfer switch cabinet feeds current to the power distribution through the feeder cabinet The transformer thus forms a complete current loop; the incoming control cabinet, the power receiving cabinet, the feeder cabinet and all of the converters are connected to the pic and the console via optical fibers; The first measuring point, the second measuring point, the third measuring point, a fourth measuring point, the fifth and sixth measurement point the measurement point is detected.
 2. The megawatt wind turbine test system according to claim 1, wherein: said measuring device is a power quality analyzer, a power meter, and a waveform recorder; said power quality analyzer respectively for the first measurement The power quality of the point, the second measurement point, the third measurement point, the fourth measurement point, and the fourth measurement point are analyzed; the power meter and the waveform recorder are connected to the switchgear cabinet to measure the generated current.
 3. The megawatt wind turbine test system according to claim 1, wherein: the LVRT device is disposed between the distribution transformer and the feed cabinet, and the LVRT device is used to detect the low voltage ride through capability of the test unit. .
 A megawatt wind turbine test system according to claim 1, wherein: said drag motor is a two-axis extension drive motor, and each of said two-axle extension drive motors has an output shaft at each end.
 5. The test method of the test system according to claim 1 or 2, characterized in that: the 10 kv output cabinet sends the high voltage electricity to the distribution transformer through the incoming switch cabinet, and the distribution transformer reduces the voltage to 690 V to supply the full power. After the flow device drives the drag motor, the drag motor drives the wind power generation system coaxially connected through the reduction gear box; the wind power system sends the alternating current through the first full power converter, and then passes through the switch cabinet The feeder cabinet, distribution transformer and incoming switchgear feed back the energy to the 10kv output cabinet.
PCT/CN2011/075883 2010-06-25 2011-06-17 Novel testing system and method for mw-level wind driven generator set WO2011160564A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 201010209749 CN101881814B (en) 2010-06-25 2010-06-25 Novel megawatt wind generating set testing system and testing method thereof
CN201010209749.9 2010-06-25

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CN102636753A (en) * 2012-05-15 2012-08-15 河北省电力研究院 Testing method of low-voltage ride through capability of fossil power plant auxiliary engine
CN102705169A (en) * 2012-06-26 2012-10-03 河海大学 Model machine for monitoring and controlling operation state of wind power generation
CN102778623A (en) * 2012-07-26 2012-11-14 北京飞举电气有限公司 Self-powered electric power circuit fault detector
WO2014131282A1 (en) * 2013-02-27 2014-09-04 国家电网公司 Test system for power grid adaptability of mobile wind turbine generator system
CN105223501A (en) * 2014-06-20 2016-01-06 中国矿业大学(北京) A kind of threephase asynchronous detecting and analysing system
CN106523298A (en) * 2016-12-02 2017-03-22 江苏师范大学 Small wind generating set gearbox fault simulation test bed and working method thereof

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CN101881814B (en) * 2010-06-25 2013-08-21 西安久和能源科技有限公司 Novel megawatt wind generating set testing system and testing method thereof
CN102175373A (en) * 2011-03-11 2011-09-07 西安交通大学 Full power testing system for large wind generating set
CN102252846A (en) * 2011-05-04 2011-11-23 燕山大学 Multifunctional wind power generation simulation experiment platform
CN102331557B (en) * 2011-06-24 2014-09-03 东方电气(乐山)新能源设备有限公司 Testing, detecting and controlling integration experiment method of wind power generator
ES2684822T3 (en) * 2011-09-29 2018-10-04 Moventas Gears Oy Test bench and method to test gearboxes
CN102508162A (en) * 2011-11-21 2012-06-20 新疆金风科技股份有限公司 Low-voltage ride through detection system and method of wind generating set
CN102565702A (en) * 2011-12-30 2012-07-11 东方电气集团东方汽轮机有限公司 Test platform for wind driven generator
CN102645339B (en) * 2012-05-10 2014-12-24 株洲南方燃气轮机成套制造安装有限公司 Gas turbine engine load test method
CN102692601B (en) * 2012-05-30 2014-11-26 合肥工业大学 Low-voltage and medium-voltage wind power generation simulation experimental platform
CN103257316B (en) * 2013-05-17 2016-06-15 内蒙古久和能源科技有限公司 A kind of Multifunctional test system of wind turbine generator system
CN103630771A (en) * 2013-11-06 2014-03-12 天津瑞能电气有限公司 Total power testing platform for frequency converter for use in wind power generation
CN103869246A (en) * 2014-03-25 2014-06-18 济钢集团有限公司 Motor bearing defect detecting system
CN104535928B (en) * 2015-02-02 2019-02-01 华北电力大学 Direct wind-driven generator simulator stand and state monitoring apparatus
CN104678302B (en) * 2015-03-04 2017-07-28 同济大学 The low-voltage ride-through testing system of wind generating set and method of a kind of Boost current transformers
CN104793091A (en) * 2015-05-13 2015-07-22 中国航空工业集团公司北京长城计量测试技术研究所 Site test and evaluation method of doubly-fed converter
CN105626391A (en) * 2016-03-04 2016-06-01 云南电网有限责任公司电力科学研究院 Wind-lidar-based testing method for power curve of single wind generation set
CN109599886A (en) * 2017-09-30 2019-04-09 株洲中车时代电气股份有限公司 A kind of high voltage crossing pilot system

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN102636753A (en) * 2012-05-15 2012-08-15 河北省电力研究院 Testing method of low-voltage ride through capability of fossil power plant auxiliary engine
CN102705169A (en) * 2012-06-26 2012-10-03 河海大学 Model machine for monitoring and controlling operation state of wind power generation
CN102778623A (en) * 2012-07-26 2012-11-14 北京飞举电气有限公司 Self-powered electric power circuit fault detector
WO2014131282A1 (en) * 2013-02-27 2014-09-04 国家电网公司 Test system for power grid adaptability of mobile wind turbine generator system
CN105223501A (en) * 2014-06-20 2016-01-06 中国矿业大学(北京) A kind of threephase asynchronous detecting and analysing system
CN106523298A (en) * 2016-12-02 2017-03-22 江苏师范大学 Small wind generating set gearbox fault simulation test bed and working method thereof

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