CN102636351A - Testing system for testing wind generating set pitch system - Google Patents
Testing system for testing wind generating set pitch system Download PDFInfo
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- CN102636351A CN102636351A CN2012101138791A CN201210113879A CN102636351A CN 102636351 A CN102636351 A CN 102636351A CN 2012101138791 A CN2012101138791 A CN 2012101138791A CN 201210113879 A CN201210113879 A CN 201210113879A CN 102636351 A CN102636351 A CN 102636351A
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Abstract
The invention discloses a testing system for testing a wind generating set pitch system comprising an upper computer, a pitch system and a loading system, wherein the pitch system and the loading system are respectively connected to the upper computer through communication cables, and the pitch system is connected with the loading system; the pitch system comprises a pitch drive and a pitch motor, and the pitch drive is connected with the pitch motor; the loading system comprises a loading controller, a DC motor and a torque speed sensor, the loading controller is a DC speed regulator, the upper end of the DC speed regulator is connected with an AC power supply, the lower end of the DC speed regulator is connected with a DC motor, the DC motor is connected with a pitch crank set through a booster engine, and the pitch crank set is connected with the pitch motor through a speed reducer; the torque speed sensor is respectively connected with the upper computer, the booster engine and the pitch crank set, and the torque speed sensor and the pitch drive are connected with the upper computer through communication cables; and the testing system tests the blower pitch system in a workshop by simulating the actual working condition.
Description
Technical field
The present invention relates to technical field of wind power generation, relate in particular to a kind of pilot system that is used for the wind generating set pitch control system test.
Background technology
Speed-changing oar-changing has become wind power generating set major control mode at present, and pitch-controlled system can be more than wind rating, and the vanepiston angle of control wind power generating set automatically adjusts with the size of wind speed.Reduce the impact of wind-force on the one hand, guarantee the stable of generator power output simultaneously, obtain maximum energy blower fan.Pitch-controlled system is divided into hydraulic vane change and electric variable pitch again, in the market share of China's electric variable pitch apparently higher than hydraulic vane change.Yet owing in the workshop, blade can't be installed, the motion test under the zero load is only done to pitch-controlled system by a lot of complete system plants when blower fan dispatches from the factory, can't verify the systemic-function under the load condition, has caused hidden danger for the overall security of unit.
Summary of the invention
The object of the invention is exactly when solving the prior art delivery test because of the workshop being installed by blade; Only pitch-controlled system is done no load test, can't be verified the systemic-function under the load condition when blower fan dispatches from the factory, dispatch from the factory product quality even the problem of the overall security of unit occurs of bad assurance; A kind of pilot system that is used for the wind generating set pitch control system test is provided; Simulation real work situation loads, can realize the pitch-controlled system test under the load condition to the blower variable-pitch system to this test unit in the workshop; The electric energy that produces is fed back to electrical network; And the data back host computer analyzed, judges; Energy-conservation effect is remarkable, is used in the change oar delivery test in workshop.
To achieve these goals, the present invention adopts following technical scheme:
A kind of pilot system that is used for the wind generating set pitch control system test comprises host computer, pitch-controlled system, and loading system, said pitch-controlled system and loading system are connected to host computer through communication cable respectively, and pitch-controlled system connects with loading system; Said pitch-controlled system comprises that variable pitch driver, change oar motor, variable pitch driver are connected with change oar motor; Said loading system comprises loading control; Direct current generator; The speed of torque sensor, loading control adopts DC speed regulator, and the DC speed regulator upper end is connected with AC power, the lower end is connected with direct current generator; Said direct current generator connects with change oar large fluted disc through booster engine, becomes the oar large fluted disc and connects with change oar motor through reductor; Said speed of torque sensor is connected with host computer, booster engine, change oar large fluted disc respectively, and wherein the speed of torque sensor is connected with host computer through communication cable with variable pitch driver.
Be provided with the PID controller of communication module, control change oar speed, the motor driver that driving becomes the oar motor action in the said variable pitch driver, the charhing unit that links to each other with change oar motor; Said communication module links to each other with host computer through communication cable, and communication module is connected with the PID controller of controlling change oar speed, and the PID controller that control becomes oar speed is connected with the motor driver that drives change oar motor action, and motor driver links to each other with change oar motor.
The end of said change oar motor has angular encoder, and angular encoder links to each other with the PID controller that control becomes oar speed.
The quantity of said pitch-controlled system and loading system and the blade quantity of blower fan are consistent.
Principle of work: a kind of pilot system that is used for the wind generating set pitch control system test, it is characterized in that, comprise host computer; Pitch-controlled system; Loading system, said pitch-controlled system and loading system are connected to host computer through communication cable respectively, and pitch-controlled system connects with loading system; Said pitch-controlled system comprises variable pitch driver, becomes the oar motor, and variable pitch driver is connected with change oar motor; Said loading system comprises loading control; Direct current generator; The speed of torque sensor, loading control adopts DC speed regulator, and the DC speed regulator upper end is connected with AC power, the lower end is connected with direct current generator; Said direct current generator connects with change oar large fluted disc through booster engine, becomes the oar large fluted disc and connects with change oar motor through reductor; Said speed of torque sensor is connected with host computer, booster engine, change oar large fluted disc respectively, and wherein the speed of torque sensor is connected with host computer through communication cable with variable pitch driver.Pitch-controlled system is in direct current generator and is generating state, and feed back to electrical network through DC speed regulator through becoming the direct current generator rotation in the oar driven by motor loading system, accomplishes energy-conservation effect; DC speed regulator in the loading system is regulated DC motor rotation speed through control armature DC voltage and is realized the loading to pitch-controlled system; And judge the speed conditions of direct current generator according to the feedback current of direct current generator; Come to regulate once more rotating speed of motor with this, realize stable loading pitch-controlled system.During use the assembling of testing table each several part is accomplished; Propeller pitch angle is sent in host computer simulation master control orders to variable pitch driver; In variable pitch driver, convert position signalling to change oar rate signal, convert voltage signal to by motor driver and drive change oar motor, change oar motor is rotated according to the angular velocity that is provided with by the PID controller; And through the rotation of reductor drive bull gear, and then accomplish the change oar action of expecting; The terminal angular encoder of motor feeds back to variable pitch driver with angle, proofreaies and correct the accuracy of the anglec of rotation.The rotation of large fluted disc drags and loads booster engine and direct current arbor; The relative direct current generator of this turning moment is a resistance torque; Opposite with the direction of speed rotation; This moment, direct current generator was operated in second quadrant; Be generating state; And feed back to electrical network by DC speed regulator, accomplish energy-conservation effect; DC speed regulator is regulated DC motor rotation speed by control armature DC voltage; Dc motor is given feedback current of speed regulator simultaneously; Speed regulator is judged the speed conditions of direct current generator according to feedback current, revises armature voltage output in case of necessity, regulates rotating speed of motor once more with this.
Beneficial effect of the present invention:
1. the present invention loads the testing table of test in workshop simulation real work situation to the blower variable-pitch system, and the electric energy that produces is fed back to electrical network, and energy-saving effect is remarkable.
2. realize the pitch-controlled system test under the load condition, the data back host computer is analyzed, judged, be used for carrying out the change oar delivery test in workshop quickly and easily.
Description of drawings
Accompanying drawing 1 is a structural principle synoptic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
A kind of pilot system that is used for the wind generating set pitch control system test; As shown in Figure 1, comprise host computer, pitch-controlled system; Loading system; Said pitch-controlled system and loading system are connected to host computer through communication cable respectively, and pitch-controlled system connects with loading system, and pitch-controlled system comprises variable pitch driver, becomes the oar motor; Variable pitch driver is connected with change oar motor, is provided with the PID controller of communication module, control change oar speed, the motor driver that driving becomes the oar motor action, the charhing unit that links to each other with change oar motor in the said variable pitch driver; Said communication module links to each other with host computer through communication cable, and communication module is connected with the PID controller of controlling change oar speed, and the PID controller that control becomes oar speed is connected with the motor driver that drives change oar motor action, and motor driver links to each other with change oar motor; The end of said change oar motor has angular encoder, and angular encoder links to each other with the PID controller that control becomes oar speed.Said loading system comprises loading control, loading motor, and the speed of torque sensor, loading control is connected with loading motor, and said loading motor is a direct current generator.Loading control is an equipment of regulating the direct current drive motor speeds; Loading system comprises loading control, loading motor, and the speed of torque sensor, loading control is connected with loading motor; Said change oar motor via reducer connects with change oar large fluted disc, and said loading motor connects with change oar large fluted disc through booster engine, and said speed of torque sensor is connected with host computer through communication cable with variable pitch driver; Said loading control adopts DC speed regulator; The upper end is connected with AC power, and the lower end is connected with direct current motor, and DC speed regulator changes into two-way output DC source with alternating current; One the tunnel inputs to excitation of direct current generator (stator); One the tunnel inputs to direct current generator armature (rotor), adopts torque control, the variation of fictitious load torque; Said pitch-controlled system is consistent with the blade quantity of blower fan with the quantity 1 of loading system.Host computer simulation master control transmission propeller pitch angle is ordered to variable pitch driver during use; In variable pitch driver, convert position signalling to change oar rate signal by the PID controller; Convert voltage signal to by motor driver and drive change oar motor; Make to become the oar motor, and drive the bull gear rotation, and then accomplish the change oar action of expection through reductor according to the angular velocity rotation that is provided with; The terminal angular encoder of motor feeds back to variable pitch driver with angle, proofreaies and correct the accuracy of the anglec of rotation.The rotation of large fluted disc drags and loads booster engine and direct current arbor; The relative direct current generator of this turning moment is a resistance torque; Opposite with the direction of speed rotation; This moment, direct current generator was operated in second quadrant; For sending out dotted state; And feed back to electrical network by DC speed regulator, accomplish energy-conservation effect; DC speed regulator is regulated DC motor rotation speed by control armature DC voltage; Dc motor is given feedback current of speed regulator simultaneously; Speed regulator is judged the speed conditions of direct current generator according to feedback current, revises armature voltage output in case of necessity, regulates rotating speed of motor once more with this.
Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection domain of the present invention; One of ordinary skill in the art should be understood that; On the basis of technical scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (4)
1. a pilot system that is used for the wind generating set pitch control system test is characterized in that, comprises host computer, pitch-controlled system, and loading system, said pitch-controlled system and loading system are connected to host computer through communication cable respectively, and pitch-controlled system connects with loading system; Said pitch-controlled system comprises variable pitch driver, becomes the oar motor, and variable pitch driver is connected with change oar motor; Said loading system comprises loading control; Direct current generator; The speed of torque sensor, loading control adopts DC speed regulator, and the DC speed regulator upper end is connected with AC power, the lower end is connected with direct current generator; Said direct current generator connects with change oar large fluted disc through booster engine, becomes the oar large fluted disc and connects with change oar motor through reductor; Said speed of torque sensor is connected with host computer, booster engine, change oar large fluted disc respectively, and wherein the speed of torque sensor is connected with host computer through communication cable with variable pitch driver.
2. the pilot system that is used for the wind generating set pitch control system test as claimed in claim 1; It is characterized in that; Be provided with the PID controller of communication module, control change oar speed, the motor driver that driving becomes the oar motor action in the said variable pitch driver, the charhing unit that links to each other with change oar motor; Said communication module links to each other with host computer through communication cable, and communication module is connected with the PID controller of controlling change oar speed, and the PID controller that control becomes oar speed is connected with the motor driver that drives change oar motor action, and motor driver links to each other with change oar motor.
3. like claim 1 or the 2 described pilot systems that are used for the wind generating set pitch control system test, it is characterized in that the end of said change oar motor has angular encoder, angular encoder links to each other with the PID controller that control becomes oar speed.
4. the pilot system that is used for wind generating set pitch control system test as claimed in claim 1 is characterized in that, the quantity of said pitch-controlled system and loading system and the blade quantity of blower fan are consistent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101138791A CN102636351A (en) | 2012-04-18 | 2012-04-18 | Testing system for testing wind generating set pitch system |
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| CN2012101138791A CN102636351A (en) | 2012-04-18 | 2012-04-18 | Testing system for testing wind generating set pitch system |
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Cited By (8)
| 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 |
| CN104265579A (en) * | 2014-09-15 | 2015-01-07 | 三一重型能源装备有限公司 | Flexible simulation test method and system of pitch system |
| CN105717450A (en) * | 2014-12-05 | 2016-06-29 | 国家电网公司 | Assessment method for variable pitch driving capability in low voltage ride through process |
| CN106246463A (en) * | 2016-07-19 | 2016-12-21 | 沈阳华创风能有限公司 | The test system of wind generating set pitch control system and appraisal procedure |
| CN106768532A (en) * | 2017-02-17 | 2017-05-31 | 浙江运达风电股份有限公司 | A kind of pitch motor torque output capability appraisal procedure and test system |
| CN110094309A (en) * | 2018-01-30 | 2019-08-06 | 江苏金风科技有限公司 | Testing and control cabinet, test control system and the method for hydraulic variable propeller system |
| CN114199447A (en) * | 2021-11-26 | 2022-03-18 | 明阳智慧能源集团股份公司 | Online detection method for braking torque of variable-pitch motor brake of wind turbine generator |
| CN114326578A (en) * | 2022-03-10 | 2022-04-12 | 东方电气风电股份有限公司 | Become oar loading cabinet and control system |
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Cited By (10)
| 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 |
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| CN104265579A (en) * | 2014-09-15 | 2015-01-07 | 三一重型能源装备有限公司 | Flexible simulation test method and system of pitch system |
| CN105717450A (en) * | 2014-12-05 | 2016-06-29 | 国家电网公司 | Assessment method for variable pitch driving capability in low voltage ride through process |
| CN105717450B (en) * | 2014-12-05 | 2018-11-13 | 国家电网公司 | The appraisal procedure of pitch drive ability during a kind of low voltage crossing |
| CN106246463A (en) * | 2016-07-19 | 2016-12-21 | 沈阳华创风能有限公司 | The test system of wind generating set pitch control system and appraisal procedure |
| CN106768532A (en) * | 2017-02-17 | 2017-05-31 | 浙江运达风电股份有限公司 | A kind of pitch motor torque output capability appraisal procedure and test system |
| CN110094309A (en) * | 2018-01-30 | 2019-08-06 | 江苏金风科技有限公司 | Testing and control cabinet, test control system and the method for hydraulic variable propeller system |
| CN114199447A (en) * | 2021-11-26 | 2022-03-18 | 明阳智慧能源集团股份公司 | Online detection method for braking torque of variable-pitch motor brake of wind turbine generator |
| CN114326578A (en) * | 2022-03-10 | 2022-04-12 | 东方电气风电股份有限公司 | Become oar loading cabinet and control system |
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Application publication date: 20120815 |