CN205982567U - Megawatt level wind turbine generator system test platform - Google Patents
Megawatt level wind turbine generator system test platform Download PDFInfo
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- CN205982567U CN205982567U CN201620720378.3U CN201620720378U CN205982567U CN 205982567 U CN205982567 U CN 205982567U CN 201620720378 U CN201620720378 U CN 201620720378U CN 205982567 U CN205982567 U CN 205982567U
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Abstract
The utility model provides a megawatt level wind turbine generator system test platform, is including supplying auxiliary electrical power source outward, its high -pressure side of all connecting step -down testing transformer and rectifier transformer, and the input of this rectifier transformer low -pressure end and converter connects to form total power variable frequency device, the output and the dragging motor of converter connect, the low -pressure end of connecting step -down testing transformer behind double -fed aerogenerator's stator end, double -fed aerogenerator's the rotor end tandem rotor converter jointly, double -fed aerogenerator's main shaft passes through the shaft coupling and is connected with the dragging motor main shaft. The utility model discloses the parameter matching debugging and the control strategy that can accomplish double -fed aerogenerator and rotor converter in the laboratory verify. Especially, simulate actual operating environment, carry out the experimental and hot operating test of the full power load of double -fed aerogenerator under different rotational speeds, the deciding of analysis motor, rotor power curve survey, electric efficiency curve survey to and be incorporated into the power networks close a floodgate to strike, each item capability test such as the voltage the during load, current harmonic content.
Description
Technical field
This utility model is related to variable speed constant frequency dual-feed asynchronous wind power generator technical field, refers specifically to a kind of megawatt-level wind
Unit test platform.
Background technology
Electromechanics trade is through technology exploration for many years and research, the development trend of foreign wind-powered electricity generation type, independent research
Go out speed-varying frequency constant dual feedback wind power generation type.The main advantage of this type embodies in the following areas：First, set speed adjustment scope
Substantially broaden, working speed is about in the range of 0.5～1.5 times of nominal speed, thus improving the wind energy availability of blower fan.Its
Secondary, using vector control technology, make the interconnection technology of electromotor more ripe by magnetic vector oriented control, grid-connected impact phase
To less.In addition, decoupling to the d-q axle magnetic vector of alternating current generator using victor chan ge control technology, control d axle and q respectively
Axle magnetic vector makes the active and idle control of alternating current generator more succinctly facilitate, and blower fan torque is adjusted and idle control is more smart
Standard, at present the power factor of most dual-feed asynchronous wind power generator type all can adjust in the range of ± 0.95.These are many
Advantage so that variable speed constant frequency dual-feed asynchronous wind power generator group is promoted rapidly, become one of mainstream model of wind-powered electricity generation industry.
In variable speed constant frequency dual-feed asynchronous wind power generator R＆D process, motor and rotor current transformer performance indications are all necessary
Verified by test, whether assay property indices meet design to ability and standard requires further.Especially, double-fed wind
Power generator is all particularly important with rotor current transformer parameter matching and debugging, and these are required for coming by corresponding test platform
Complete to test.However, existing test method and test system are both for conventional motor EXPERIMENTAL DESIGN, for completing double-fed wind
In place of motor-type test still comes with some shortcomings：
1 conventional motor mostly operates near rated speed, does not need to carry out large-scale speed governing, test electricity during test
Source requires tuning range relatively small it is impossible to the speed governing meeting wind-driven generator wide scope requires.
2 conventional motor product testings do not need the battery of tests, only need to qualified to motor performance test itself get final product it is impossible to
Complete the battery of tests of wind-driven generator motor and current transformer.
The experiment power supply of 3 conventional motor must adopt frequency conversion voltage adjusting power supply, and the requirement of experiment power supply electric power quality is higher,
Two groups of DC generators-synchrodrive test unit is generally adopted to provide, system complex, subsidiary auxiliary equipment is more, and investment is larger.Double-fed
Type wind-driven generator can complete dependence test using constant frequency and constant voltage power supply.
Utility model content
The utility model proposes a kind of megawatt-level wind unit test platform, to solve capacity 2.0MW and following, specified electricity
Pressure 0.69kV and the type approval test of speed-varying frequency constant dual feedback wind power generation machine of following electric pressure and the complete examination with converter
Test.Adopt energy feedback method during test, frequency control is realized by total power converter plant, frequency can be put down in 0～72Hz scope
Sliding regulation, can be completely covered speed-varying frequency constant dual feedback wind power generation machine running speed scope, realize variable speed constant frequency doubly-fed wind-force and send out
The full power trial (FPT) of motor.
This utility model employs the following technical solutions realization：
A kind of megawatt-level wind unit test platform, this test platform includes outer confession accessory power supply, this outer confession accessory power supply
Connect the high-pressure side of drop test transformator and the high-pressure side of rectifier transformer, this rectifier transformer low-pressure end and converter defeated
Enter end and connect composition total power converter plant；The outfan of converter and drive motor connect to drive motor offer frequency conversion
Power supply；Jointly connect after the stator terminal of described double-fed wind power generator, the rotor-end tandem rotor current transformer of double-fed wind power generator
Connect the low-pressure end of drop test transformator；Described double-fed wind power generator forms tested double-fed wind power generator with rotor current transformer
Group；The main shaft of described double-fed wind power generator is connected with drive motor main shaft by shaft coupling.
This utility model can complete the parameter matching and debugging of double-fed wind power generator and rotor current transformer in test interior
And control strategy checking.Especially simulate actual motion environment, carry out double-fed wind power generator total power under different rotating speeds and bear
Carry test and hot operation test, the stator and rotor power curve of analysis motor measures, electric efficiency curve determination, and grid-connected conjunction
The properties test such as voltage when lock impact, load, current harmonic content.Concrete effect is as follows：
1. dragging motor described in is powered using total power variable-frequency power sources, by this dragging motor can using conventional motor according to
Test product speed adjustable range is matched, and can save equipment investment cost.
2. this utility model goes for the test of different number of poles double-fed generator types, and scheme is flexible and changeable, type with
Meaning is changed, and test product changes fast and simple, the saving time.
3. this utility model can carry out double-fed wind power generator with the rotor current transformer battery of tests it is also possible to be used for double-fed
The performance test of wind-driven generator unit or rotor current transformer and debugging, testing program is flexible and changeable, it is easy to accomplish.
4. system schema of the present utility model can be used for double-fed wind power generator and the complete performance detection of rotor current transformer
Certification is it is also possible to be used for double-fed wind power generator unit or rotor current transformer performance detection certification.
5. experiment power supply is compared from Traditional DC machine synchronous generator test unit, pilot system from converter plant
Structure is simple, and floor space is little, and equipment and infrastructure investment are less, cost-effective.
6. the full power trial (FPT) of pilot system scheme adopts energy feedback method, and experiment power supply is powered using converter plant, section
About electric energy, saves experimentation cost, especially notable in batch production effectiveness comparison.
Brief description
Fig. 1 is connection diagram of the present utility model.
Specific embodiment
Below in conjunction with accompanying drawing, this utility model is further described.
This utility model is a kind of test system of wind power generating set, is mainly used in development variable speed constant frequency doubly-fed different
Step wind-driven generator and the performance test of rotor current transformer.Reliable test data, further assay are obtained by test
Whether the property indices of motor and rotor current transformer are consistent with design parameter, if meet standard and technical conditions require.
After product approval batch process, the detection test of motor and rotor current transformer and complete debugging are also can not in the technological process of production
One link of disappearance, megawatt-level wind unit test platform can be used to complete the type approval test of product and routine test, inspection
Test whether properties of product meet standard, technical conditions require.
This utility model capacity of experiment is sent out with the variable speed constant frequency doubly-fed wind-force below below 2.0MW, 0.69kV electric pressure
The type approval test of motor and the battery of tests with current transformer, and take into account the complete of other types wind-driven generator and supporting current transformer
Test is it can also be used to wind power unit converter exploitation is debugged.
A kind of megawatt-level wind unit test platform, this test platform includes outer confession accessory power supply 1, this outer confession accessory power supply
1 connects the high-pressure side of drop test transformator 2 and the high-pressure side of rectifier transformer 8, this rectifier transformer 8 low-pressure end and converter
7 input connects composition total power converter plant 9；The outfan of converter 7 and drive motor 6 connect and electronic to dragging
Machine 6 provides variable-frequency power sources；The stator terminal of described double-fed wind power generator 4, the rotor-end tandem rotor of double-fed wind power generator 4 become
The common low-pressure end connecting drop test transformator 2 after stream device 3；Described double-fed wind power generator 4 and rotor current transformer 3 form quilt
Survey double-fed wind power generator group 5；The main shaft of this double-fed wind power generator 4 is connected with drive motor 6 main shaft by shaft coupling.
The capacity of described drop test transformator 2 is 500KVA～3200KVA, preferably 2500KVA；Described rectifier transformer
The capacity of device 8 is 500KVA～3200KVA, preferably 3200KVA；The capacity of described converter 7 is 500KW～2500KW, excellent
Select 2250KW；Three's capacity configuration combination is it is ensured that this utility model reaches 2000W and the survey of following capacity megawatt-level wind unit
Examination.
Outer confession accessory power supply 1 of the present utility model can be independently-powered using small-sized change unit, can make pilot system
Isolate with electrical network and form independent local power net, this point is especially carrying out doubly fed induction generator group voltage, the test of current harmonics factor
When, detection can affect against mains by harmonics background noise, and test data can truly accurately reflect test product actual performance and refer to
Mark.
Ultimate principle of the present utility model：During double-fed wind power generator group 5 test, accessory power supply 1 is through described drop test
Transformator 2 provides net side power frequency supply for described double-fed wind power generator group 5.Drive motor 6 is become by total power converter plant 9
Frequency starts, and controls input torque and the rotating speed of described drive motor 6.Permanent torque is adopted to control below described converter 7 fundamental frequency
More than pattern, fundamental frequency adopt power limitation control pattern.When drive motor 6 drags double-fed wind power generator 4 raising speed, rotor becomes
Stream device 3 detects to throw to encourage when double-fed wind power generator 4 reaches incision rotating speed builds pressure, and constantly adjusts described double-fed wind generating
Machine 4 rotor current phase place and frequency, make double-fed wind power generator 4 stator voltage phase place and frequency and voltage on line side reach synchronization.
After grid-connected end, rotor current transformer 3 adjusts rotor current amplitude and phase place according to Controlling model algorithm, controls double-fed wind generating
The output electromagnetic torque of machine 4 and reactive power.At this moment adjusting drive motor 6 rotating speed makes double-fed wind power generator 4 adjust complete
In fast scope, change, measures the load characteristic data of double-fed wind power generator 4 in different rotating speeds point.
This utility model, according to test requirements document, needs to arrange three measurement points, respectively in double-fed wind power generator group 5 test
It is arranged on double-fed wind power generator 4 stator outfan, rotor current transformer 3 input side and drop test transformator 2 low-pressure side.Three
Measuring configuration has electric quantity sensor, including high-precision current, voltage transformer.Electric parameters pass through comprehensive electric quantity acquisition terminal
The high-accuracy power analyzer collection of WT series, completes electric current, voltage, power, frequency, power factor, voltage-form distortion rate, electricity
The accurate measurement of the data such as pressure telephone harmonic form factor, current telephony harmonic wave factor, rotating speed.High-accuracy power analyzer can also carry
For the FFT spectrum analysis of current/voltage and the waveform analyses of transient state electricity.Pyrological data precision measurement equipment gathers double-fed wind
The delta data of the temperature element on power generator 4, and by Japanese Yokogawa MW100 data acquisition unit Real-time Collection, storage
Data separate analysis software can generate corresponding temperature curve.For some such as mechanical verification, D.C. resistance, insulation resistances
Test, vibration and noise etc. using the test data of handheld instrument detection, final result can manual input computer system,
All detection datas process software analysis by exclusive data and process, and generate corresponding examining report.
Claims (5)
1. a kind of megawatt-level wind unit test platform it is characterised in that：This test platform includes outer confession accessory power supply（1）, should
Outer confession accessory power supply（1）Connect drop test transformator（2）High-pressure side and rectifier transformer（8）High-pressure side, this rectification become
Depressor（8）Low-pressure end and converter（7）Input connect composition total power converter plant（9）；Converter（7）Outfan and
Drive motor（6）Connect to drive motor（6）Variable-frequency power sources is provided；Described double-fed wind power generator（4）Stator terminal, double
Feedback wind-driven generator（4）Rotor-end tandem rotor current transformer（3）Jointly connect drop test transformator afterwards（2）Low-pressure end；
Described double-fed wind power generator（4）With rotor current transformer（3）Form tested double-fed wind power generator group（5）；Described double-fed wind-force
Electromotor（4）Main shaft pass through shaft coupling and drive motor（6）Main shaft connects.
2. a kind of megawatt-level wind unit test platform according to claim 1 it is characterised in that：Described drop test becomes
Depressor（2）Capacity be 500KVA～3200KVA.
3. a kind of megawatt-level wind unit test platform according to claim 1 it is characterised in that：Described rectifier transformer
（8）Capacity be 500KVA～3200KVA.
4. a kind of megawatt-level wind unit test platform according to claim 1 it is characterised in that：Described converter（7）
Capacity be 500KW～2500KW.
5. a kind of megawatt-level wind unit test platform according to claim 1 it is characterised in that：Described outer electric for auxiliary
Source（1）Become unit independent current source using electrical network power frequency supply or small-sized to power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720378.3U CN205982567U (en) | 2016-07-08 | 2016-07-08 | Megawatt level wind turbine generator system test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720378.3U CN205982567U (en) | 2016-07-08 | 2016-07-08 | Megawatt level wind turbine generator system test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205982567U true CN205982567U (en) | 2017-02-22 |
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| CN201620720378.3U Active CN205982567U (en) | 2016-07-08 | 2016-07-08 | Megawatt level wind turbine generator system test platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084984A (en) * | 2018-10-30 | 2018-12-25 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind power generating set electricity generation system united test device and test method |
| CN110120663A (en) * | 2018-02-07 | 2019-08-13 | 中国船舶重工集团海装风电股份有限公司 | A kind of the safe operation limit drawing drawing method and device of double-fed asynchronous generator |
| CN111308347A (en) * | 2020-04-16 | 2020-06-19 | 西南科技大学 | Generator testing system and method |
-
2016
- 2016-07-08 CN CN201620720378.3U patent/CN205982567U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120663A (en) * | 2018-02-07 | 2019-08-13 | 中国船舶重工集团海装风电股份有限公司 | A kind of the safe operation limit drawing drawing method and device of double-fed asynchronous generator |
| CN110120663B (en) * | 2018-02-07 | 2023-05-26 | 中国船舶重工集团海装风电股份有限公司 | Safe operation limit diagram drawing method and device for doubly-fed asynchronous generator |
| CN109084984A (en) * | 2018-10-30 | 2018-12-25 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind power generating set electricity generation system united test device and test method |
| CN111308347A (en) * | 2020-04-16 | 2020-06-19 | 西南科技大学 | Generator testing system and method |
| CN111308347B (en) * | 2020-04-16 | 2022-05-31 | 西南科技大学 | Generator testing system and method |
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