CN202853913U - Wind generating set electric variable pitch system loading test bench - Google Patents
Wind generating set electric variable pitch system loading test bench Download PDFInfo
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- CN202853913U CN202853913U CN 201220380700 CN201220380700U CN202853913U CN 202853913 U CN202853913 U CN 202853913U CN 201220380700 CN201220380700 CN 201220380700 CN 201220380700 U CN201220380700 U CN 201220380700U CN 202853913 U CN202853913 U CN 202853913U
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- variable pitch
- loading test
- test bench
- generating set
- electric
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Abstract
A wind generating set electric variable pitch system loading test bench is provided. The test bench comprises a measurement and control bench for checking state and operation, a four-quadrant DC speed regulator, a DC motor, a shaft coupling, a torque sensor, a tested variable pitch motor and a variable pitch electric control system. The loading test bench is provided for simulating blade and wind power load, completing tests of a wind power generation variable pitch system under the rated load and impact load situations, and converting mechanical energy generated during the testing process into electric energy for other devices inside the system, thus energy saving effects can be realized.
Description
Technical field
The utility model relates to a kind of Wind Turbine Electric Pitch System system loads testing table, relates in particular to pitch-controlled system and loads field tests.
Background technology
The electric variable pitch technology is gordian technique wherein in the MW class variable-speed constant-frequency wind power generation system.The vanepiston angle of its control wind power generating set can automatically adjust with the size of wind speed.When low wind speed starting, the blade pitch can forward suitable angle to, makes wind wheel have maximum starting torque; When wind speed is too high, by adjusting the blade pitch, change air-flow to the angle of attack of blade, thereby change the aerodynamic torque that wind power generating set obtains, make generator power output keep stable.
Pitch-controlled system is followed with the position tracer request high to the speed of three change oar motors, can't judge accurately in the empty load of motor situation whether pitch-controlled system reaches designing requirement.If after waiting for that the blower fan integral hoisting is complete, carry out the value-added tax function test by actual wind regime load, certainly will make troubles for plant maintenance and system enhancement, also exist potential safety hazard simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of ground to load test mode, and simulation blade load and wind-force load are observed pitch-controlled system control effect under the impact load condition simultaneously.
The technical scheme that its technical matters that solves the utility model adopts is: by the loading system that direct current generator, quadrant DC speed regulator and monitoring and control unit form, simulation blade and wind-force load are realized the fully loaded control of pitch-controlled system.Application by the quadrant DC speed regulator can realize that the mechanical energy that pitch-controlled system produces is converted to electric energy feedback to internal electric network, for inner other consumers of this electrical network.
Pitch-controlled system loading scheme principle as shown in Figure 1 is as follows.Before the loading, apply the constant excitation megnet electric current for first the excitation of direct current generator winding, in motor gas-gap, set up main field.Start tested pitch-controlled system motor, start moment, motor remains static, direct current generator is under the motoring condition works, its electromagnetic torque is as the moment of resistance of tested change oar motor, drop into armature voltage by the rectification adverser in the DC speed regulator to direct current generator simultaneously, regulate the size of armature voltage and can control the staring torque size that puts on tested change oar motor.Along with electric machine rotation, direct current generator is transitioned into generating state by reverse motoring condition during loading, and the torque equation during generator operation on the armature is:
In the formula, be air-gap flux, it is subjected to the impact of exciting current and armature supply, thereby in the situation that exciting current is constant, can regulate torque by regulating the armature of direct current motor electric current, the excitation of direct current generator sense of current is selected in direct current generator and the rotation of tested change oar motor coaxle, the moment direction that direct current generator is produced is opposite with tested change oar direction of motor rotation, then can realize becoming the loading of oar motor.
The beneficial effects of the utility model are, by the direct current generator loading scheme, and the environment for use of simulation pitch-controlled system under full load condition, thereby the function that can under surface condition, test the pitch-controlled system under the full load condition.Simultaneously, this loading scheme, the mechanical energy that tested equipment is produced is converted to electric energy, for other equipment of internal system, compares with waterpower or current vortex loading scheme and to have significant energy-saving effect.
Description of drawings
Fig. 1 is pitch-controlled system bracket loading test platform block diagram.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Fig. 1 shows the utility model embodiment block diagram.Monitoring and control unit is realized the detection of rotating speed, torque, power, realizes simultaneously the on off control function of data sheet matched curve and relevant device.DC speed regulator is selected Siemens 6RA7028-6DV62-0 quadrant DC speed regulator, realizes the two-way flow of energy, thereby reaches energy-conservation effect.Become the oar electric-control system and be connected the oar motor and connect with actual condition, change oar motor is connected with the direct current generator elasticity of loading bench by shaft coupling, and shaft coupling is equipped with torque sensor with the Real-Time Monitoring moment of torsion.During test, become the oar electric-control system and start change oar motor with the feathering speed of setting, monitoring and control unit increases to the setting load under the torque control model, thereby observe the control effect of pitch-controlled system under difference simulation load condition, reach the purpose that detects test pitch-controlled system function under the full load conditions.
The above only is preferred embodiment of the present utility model, not in order to limit the utility model.For example: the loading TT﹠C system that load mode can also select alternating current generator and four-quadrant AC converter to form; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. electric variable propeller system of wind generating set bracket loading test platform, it is characterized in that, described bracket loading test platform comprises the monitoring and control unit of the state of checking and operation, four-quadrant DC speed regulator, direct current generator, shaft coupling and torque sensor, tested change oar motor and change oar electric-control system.
2. bracket loading test platform as claimed in claim 1 is characterized in that, described DC speed regulator is Siemens 6RA7028-6DV62-0.
3. bracket loading test platform as claimed in claim 1 is characterized in that, uses four-quadrant AC converter replacement quadrant DC speed regulator corresponding to alternating current generator and direct current generator also can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380700 CN202853913U (en) | 2012-08-02 | 2012-08-02 | Wind generating set electric variable pitch system loading test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380700 CN202853913U (en) | 2012-08-02 | 2012-08-02 | Wind generating set electric variable pitch system loading test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853913U true CN202853913U (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220380700 Expired - Lifetime CN202853913U (en) | 2012-08-02 | 2012-08-02 | Wind generating set electric variable pitch system loading test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853913U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323250A (en) * | 2013-06-20 | 2013-09-25 | 国电联合动力技术(连云港)有限公司 | Test system and method for simulating field operation of variable pitch system of wind generating set |
| CN105424370A (en) * | 2015-12-22 | 2016-03-23 | 南车株洲电力机车研究所有限公司 | Testing platform of variable-pitch system of wind generating set |
| CN114441194A (en) * | 2022-01-27 | 2022-05-06 | 李斯特测试设备(上海)有限公司 | Automobile altitude simulation system and test equipment |
-
2012
- 2012-08-02 CN CN 201220380700 patent/CN202853913U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323250A (en) * | 2013-06-20 | 2013-09-25 | 国电联合动力技术(连云港)有限公司 | Test system and method for simulating field operation of variable pitch system of wind generating set |
| CN103323250B (en) * | 2013-06-20 | 2016-04-27 | 国电联合动力技术(连云港)有限公司 | Test system and method for simulating field operation of variable pitch system of wind generating set |
| CN105424370A (en) * | 2015-12-22 | 2016-03-23 | 南车株洲电力机车研究所有限公司 | Testing platform of variable-pitch system of wind generating set |
| CN114441194A (en) * | 2022-01-27 | 2022-05-06 | 李斯特测试设备(上海)有限公司 | Automobile altitude simulation system and test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |