CN201697797U - Test-bed for electric pitch-controlled system of wind generating set - Google Patents
Test-bed for electric pitch-controlled system of wind generating set Download PDFInfo
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- CN201697797U CN201697797U CN201020201900XU CN201020201900U CN201697797U CN 201697797 U CN201697797 U CN 201697797U CN 201020201900X U CN201020201900X U CN 201020201900XU CN 201020201900 U CN201020201900 U CN 201020201900U CN 201697797 U CN201697797 U CN 201697797U
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Abstract
The utility model provides a test-bed for the electric pitch-controlled system of a wind generating set, consisting of a host computer, an electric pitch-controlled system for driving a propeller, and a loading system for simulating the wind torsion to the root of the propeller. The host computer transmits a wind power load signal to the loading system while transmitting a position control signal to the electric pitch-controlled system; the loading system applies torsion to the output shaft of a pitch-controlled motor and simulates the pneumatic load of air flow to the propeller in the pitch control process, that is, the electric pitch-controlled system runs in a loaded state, thereby the test of the pitch-controlled system is more real and reliable.
Description
Technical field: the utility model provides a kind of experiment table that is applied to wind generator system, relates in particular to a kind of Wind Turbine Electric Pitch System systems test bed, belongs to technical field of wind power generation.
Background technology: pulp distance varying mechanism is exactly more than wind rating, regulates propeller pitch angle at any time according to change of wind velocity, and the mechanical energy that control absorbs guarantees to obtain maximum energy (corresponding with rated power) on the one hand, reduces the impact of wind-force to wind energy conversion system simultaneously.And network process in, feather control also can realize not having fast to impact being incorporated into the power networks.Variable-pitch control system matches with the variable speed constant frequency technology, has finally improved the generating efficiency and the quality of power supply of whole wind force generating system.Pitch-variable system mainly is divided into electric variable pitch distance and hydraulic variable-pitch two classes, because the restriction of the hydraulic pressure industry integral level of China at present, the hydraulic variable-pitch system is starkly lower than the electric variable pitch distance in the occupation rate of wind-power market, while, aspect the cleaning, also there was certain advantage in electric variable pitch apart from system in reducing leakage of oil maintenance wheel hub and blade.
But, domestic-developed and design electric variable pitch do not have the perfect ground experiment method of a cover apart from system at present, usually need be after the blower fan integral hoisting finishes, just can carry out the functional test of system, bring inconvenience so just for plant maintenance and system enhancement, simultaneously such site test threatens also can for the general safety performance of unit.
Summary of the invention:
Goal of the invention: the purpose of this utility model is to solve not have perfect ground-test plant in the testing wind power generation system in the past, and causes the technical matters of directly testing the maintenance that brought and system enhancement inconvenience and unit general safety performance is threatened on blower fan.
Technical scheme: the present invention is achieved by the following technical solutions:
A kind of Wind Turbine Electric Pitch System systems test bed is characterized in that: described testing table comprises that host computer, loading system and electronic change slurry are apart from system; Described loading system and electronic change slurry connect apart between the system, and described loading system and electronic change slurry are not connected to host computer by communication cable apart from system averages.
Described loading system comprises loading control and the charger that is connected with loading control; Described electronic change slurry comprises variable pitch driver and the change oar motor that is connected with variable pitch driver apart from system; Described charger is connected to by shaft coupling and becomes the oar motor, becomes the oar motor and is connected to loading control and variable pitch driver by communication cable; Described loading control and variable pitch driver are connected to host computer by communication cable respectively.
Be provided with communication module in the described variable pitch driver, control the PID controller that becomes oar speed, rechargeable battery set and the charge circuit thereof that drives the frequency converter of change oar motor action and directly be connected with change oar motor; Described communication module is connected to host computer by communication cable, and communication module is connected to the PID controller that control becomes oar speed, and the PID controller that control becomes oar speed is connected to the frequency converter that driving becomes the oar motor action, and frequency converter is connected to and becomes the oar motor; The output shaft of described change oar motor is provided with angular encoder, and angular encoder is connected to the PID controller that control becomes oar speed.
Described loading control comprises PLC controller and the interface module composition that carries out communication with host computer; Described charger is made up of two-way pump, electromagnetic proportion relief valve, retaining valve, manual blowdown valve, oil pressure sensor, fuel tank, oil filter and oil cooler, wherein two-way pump connects two oil circuits, every oil circuit all connects manual blowdown valve, retaining valve, oil cooler, oil filter and fuel tank successively, and wherein the manual blowdown valve of every oil circuit and retaining valve are common in parallel with electromagnetic proportion relief valve; Between described electromagnetic proportion relief valve and two-way pump, be provided with the retaining valve that is connected to oil cooler; Also be connected with pressure indicator between described manual blowdown valve and the two-way pump, be provided with oil pressure sensor in the pressure indicator, oil pressure sensor is connected to the PLC controller in the loading control, and described PLC controller also is connected to angular encoder and the interior electromagnetic proportion relief valve of charger that becomes in the oar motor; Described two-way pump is connected to by shaft coupling and becomes the oar motor.
Become the oar motor and be direct current motor or three-phase AC asynchronous motor.
The blade quantity with blower fan is consistent when in use apart from the quantity of system for described loading system and electronic change slurry.
Advantage and effect: the utility model provides a kind of Wind Turbine Electric Pitch System systems test bed, and described testing table comprises that also host computer, loading system and electronic change slurry are apart from system; Described loading system and electronic change slurry connect apart between the system, and described loading system and electronic change slurry are not connected to host computer by communication cable apart from system averages.
Electric variable pitch is connected on the blade of aerogenerator apart from intrasystem change oar motor, and host computer 1 is drawn the position signalling β that becomes the vane angle degree according to simulation generator speed n and power P in the test procedure by the internal control algorithm computation
1, be sent to electric variable pitch in the variable pitch driver of system, position signalling β by control interface (RS485 interface)
1Be converted to change oar rate signal ω by the PID controller, be converted to control voltage signal U driving change oar motor by becoming the oar motor driver again, make change oar motor with the rotation of set angle speed omega, thereby finish the change oar action of expection.
This utility model is simple for structure rationally, brings great convenience for the plant maintenance and the system enhancement of aerogenerator, and such testing table has also been avoided directly the problem of the overall security brought in the unit experiment simultaneously.
Description of drawings:
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is the oil circuit figure of charger of the present utility model.
Embodiment: the present invention is described further below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model relates to a kind of Wind Turbine Electric Pitch System systems test bed, and described testing table comprises that host computer 1, simulation wind are to the loading system 2 of propeller shank torque with realize that electronic change slurry that blade drives is apart from system 3; Described loading system 2 and electronic change slurry are apart from connecting between the system 3, and described loading system 2 and electronic change slurry are connected to host computer 1 by communication cable respectively apart from system 3.
Described loading system 2 comprises loading control and the charger that is connected with loading control; Described electronic change slurry comprises variable pitch driver and the change oar motor 18 that is connected with variable pitch driver apart from system 3; Described charger is connected to by shaft coupling and becomes oar motor 18, becomes oar motor 18 and is connected to loading control and variable pitch driver by communication cable; Described loading control and variable pitch driver are connected to host computer 1 by communication cable respectively.
Be provided with the PID controller of communication module, control change oar speed, rechargeable battery set and the charge circuit thereof that drives the frequency converter of change oar motor 18 actions and directly be connected in the described variable pitch driver with change oar motor 18; Described communication module is connected to host computer 1 by communication cable, communication module is connected to the PID controller that control becomes oar speed, the PID controller that control becomes oar speed is connected to the frequency converter that driving becomes 18 actions of oar motor, and this frequency converter is connected to and becomes oar motor 18 so that drive change oar motor 18; Described change oar motor 18 is provided with angular encoder, and angular encoder is connected to the PID controller that control becomes oar speed.Rechargeable battery set and with the effect of the supporting charge circuit of rechargeable battery set be to provide reserve power for pitch-controlled system when electric network fault occurring.
Described loading control comprises PLC controller and the interface module composition that carries out communication with host computer 1; Described charger is made up of two-way pump, electromagnetic proportion relief valve, retaining valve, manual blowdown valve, oil pressure sensor, fuel tank, oil filter and oil cooler, wherein two-way pump connects two oil circuits, every oil circuit all connects manual blowdown valve, retaining valve, oil cooler 15, oil filter 16 and fuel tank 17 successively, and wherein the manual blowdown valve of every oil circuit and retaining valve are common in parallel with electromagnetic proportion relief valve; Between described electromagnetic proportion relief valve and two-way pump, be provided with the retaining valve that is connected to oil cooler; Be exactly as shown in Figure 2 concretely, article one oil circuit that two-way pump connects connects the first manual blowdown valve 4, first retaining valve 5, oil cooler, oil filter and fuel tank successively, and the first manual blowdown valve 4 and first retaining valve 5 are common in parallel with first electromagnetic proportion relief valve 6, are provided with second retaining valve 7 that is connected to oil cooler between described first electromagnetic proportion relief valve and two-way pump; The second oil circuit that two-way pump connects connects the second manual blowdown valve 11, the 3rd retaining valve 10, oil cooler 15, oil filter 16 and fuel tank 17 successively, and the second manual blowdown valve 11 and the 3rd retaining valve 10 are common in parallel with second electromagnetic proportion relief valve 9, are provided with the 4th retaining valve 8 that is connected to oil cooler between described second electromagnetic proportion relief valve 9 and two-way pump.Also be connected with pressure indicator between described manual blowdown valve and the two-way pump, be provided with oil pressure sensor in the pressure indicator, oil pressure sensor is connected to the PLC controller in the loading control, and described PLC controller also is connected to angular encoder and interior two electromagnetic proportion relief valves 6,9 of charger that become in the oar motor 18; Described two-way pump 14 is connected to by shaft coupling and becomes oar motor 18.
Become oar motor 18 and be direct current motor or three-phase AC asynchronous motor.
The blade quantity with blower fan is consistent when in use apart from the quantity of system 3 for described loading system 2 and electronic change slurry.
See figures.1.and.2.Host computer 1 is connected by communication cable between system 3 with electric variable pitch, host computer 1 sends propeller pitch angle given instruction to electric variable pitch apart from system 3 by this communication cable, and electric variable pitch also feeds back to host computer 1 by this communication cable with real-time propeller pitch angle apart from system 3 simultaneously; Be connected by communication cable between host computer 1 and the loading system 2, host computer 1 sends signals such as the wind speed that produced by host computer 1 simulation, generator speed, output power by this communication cable loading control of 2 in loading system, loading control is also given host computer 1 by this communication cable with real-time motor shaft end torque feedback simultaneously; Be connected by shaft coupling between the hydraulic bidirectional oil pump in the change oar motor 18 of electric variable pitch in the system 3 and the loading system, drive the rotation of hydraulic bidirectional pumps by becoming oar motor 18, thereby in corresponding oil circuit, produce the oil pressure that is used for simulating the wind load moment of torsion;
Described host computer is realized by the PC that has communication interface;
This utility model when in use, electric variable pitch is connected on the blade of aerogenerator apart from intrasystem change oar motor 18, host computer 1 is drawn the position signalling β that becomes the vane angle degree according to simulation generator speed n and power P in the test procedure by the internal control algorithm computation
1, be sent to electric variable pitch in the variable pitch driver of system, position signalling β by control interface (RS485 interface)
1Be converted to change oar rate signal ω by the PID controller, be converted to control voltage signal U by variable pitch driver again and drive change oar motor 18, change oar motor 18 is rotated with the set angle speed omega, thereby finish the change oar action of expection.
Be arranged on and become the position signalling β that the angular encoder on oar motor 18 output shafts rotates motor
2Feed back to the PID controller in the variable pitch driver of electric variable pitch in the system, the position signalling β that sends with host computer 1
1Compare, form closed-loop control;
The blade position signal beta that while host computer 1 feeds back above-mentioned simulation generator speed n, power P, wind velocity signal v and current pitch-controlled system
2Be sent to loading control in the loading system 2 by communication interface, draw the braking torque T that is loaded on change oar motor 18 output shafts according to the wind load curve calculation in the program by the PLC controller in the loading control, be converted to the analog current signal I of the proportional pressure control valve in the control loaded device again, the aperture of control electromagnetic proportion relief valve, promptly control the oil pressure in the two-way pump oil circuit, thereby realize the size and Orientation of control loaded moment of torsion, promptly realize the pneumatic torque that the simulation actual airflow produces blade;
As shown in Figure 2, the interior pressure transducer of two-way pump that is arranged on loading oil circuit feeds back to loading control with the fuel injection pressure signal in the oil circuit, forms closed-loop control;
Loading control feeds back to host computer 1 with the braking torque T that aforementioned calculation draws by communication interface, forms closed-loop control.
When the oar action is opened in 18 execution of change oar motor, second retaining valve, 7 conductings among Fig. 2, the oil circuit of article one of two-way pump 14 tops produces oil pressure, the Control current of first electromagnetic proportion relief valve 6 is adjusted in the instruction that this moment, loading control sent according to host computer 1 rapidly, change the aperture of first electromagnetic proportion relief valve 6, make the part hydraulic oil in article one oil circuit of place return fuel tank 17, thereby changed the oil pressure in article one oil circuit, loading control will be connected the fuel injection pressure signal of pressure indicator 13 feedbacks between the first manual blowdown valve 4 and the two-way pump 14 and the instruction fuel injection pressure signal of host computer 1 transmission compares, continue to adjust the aperture of first electromagnetic proportion relief valve 6, difference until both is zero, and the braking torque that produce this moment on change oar motor 18 output shafts is equivalent to the wind load that this operating mode downstream produces blade.
When change oar motor 18 is carried out pass oars action, the 4th retaining valve 8 conductings among Fig. 2, the second oil circuit of two-way pump 14 belows produces oil pressure, the Control current of second electromagnetic proportion relief valve 9 is adjusted in the instruction that this moment, loading control sent according to host computer 1 rapidly, change the aperture of second electromagnetic proportion relief valve 9, make the part hydraulic oil in the oil circuit of place return fuel tank, thereby changed the oil pressure in the oil circuit, loading control will be connected the fuel injection pressure signal of pressure indicator 12 feedbacks between the second manual blowdown valve 11 and the two-way pump 14 and the instruction fuel injection pressure signal of host computer 1 transmission compares, continue to adjust the aperture of second electromagnetic proportion relief valve 9, difference until both is zero, and the braking torque that produce this moment on change oar motor 18 output shafts is equivalent to the wind load that this operating mode downstream produces blade.
When testing experiment finishes the back or need some equipment in the maintenance oil circuit, the manually first manual blowdown valve 4 and the second manual blowdown valve 11 among conducting Fig. 2 make the hydraulic oil in two oil circuits of two-way pump 14 upper and lowers return fuel tank by first retaining valve 5 and the 3rd retaining valve 10 respectively.
This utility model is simple for structure rationally, brings great convenience for the plant maintenance and the system enhancement of aerogenerator, and such testing table has also been avoided directly the problem of the overall security brought in the unit experiment simultaneously.
Claims (6)
1. Wind Turbine Electric Pitch System systems test bed is characterized in that: described testing table comprises that host computer (1), loading system (2) and electronic change slurry are apart from system (3); Described loading system (2) and electronic change slurry are apart from connecting between the system (3), and described loading system (2) and electronic change slurry are connected to host computer (1) by communication cable respectively apart from system (3).
2. Wind Turbine Electric Pitch System systems test bed according to claim 1 is characterized in that: described loading system (2) comprises loading control and the charger that is connected with loading control; Described electronic change slurry comprises variable pitch driver and the change oar motor that is connected with variable pitch driver apart from system (3); Described charger is connected to by shaft coupling and becomes the oar motor, becomes the oar motor and is connected to loading control and variable pitch driver by communication cable; Described loading control and variable pitch driver are connected to host computer (1) by communication cable respectively.
3. Wind Turbine Electric Pitch System systems test bed according to claim 2 is characterized in that: be provided with communication module in the described variable pitch driver, control the PID controller that becomes oar speed, rechargeable battery set and the charge circuit thereof that drives the frequency converter of change oar motor action and directly be connected with change oar motor; Described communication module is connected to host computer (1) by communication cable, and communication module is connected to the PID controller that control becomes oar speed, and the PID controller that control becomes oar speed is connected to the frequency converter that driving becomes the oar motor action, and frequency converter is connected to and becomes the oar motor; The output shaft of described change oar motor is provided with angular encoder, and angular encoder is connected to the PID controller that control becomes oar speed.
4. Wind Turbine Electric Pitch System systems test bed according to claim 2 is characterized in that: described loading control comprises PLC controller and the interface module composition that carries out communication with host computer (1); Described charger is made up of two-way pump, electromagnetic proportion relief valve, retaining valve, manual blowdown valve, oil pressure sensor, fuel tank, oil filter and oil cooler, wherein two-way pump connects two oil circuits, every oil circuit all connects manual blowdown valve, retaining valve, oil cooler, oil filter and fuel tank successively, and wherein the manual blowdown valve of every oil circuit and retaining valve are common in parallel with electromagnetic proportion relief valve; Between described electromagnetic proportion relief valve and two-way pump, be provided with the retaining valve that is connected to oil cooler; Also be connected with pressure indicator between described manual blowdown valve and the two-way pump, be provided with oil pressure sensor in the pressure indicator, oil pressure sensor is connected to the PLC controller in the loading control, and described PLC controller also is connected to angular encoder and the interior electromagnetic proportion relief valve of charger that becomes in the oar motor; Described two-way pump is connected to by shaft coupling and becomes the oar motor.
5. according to claim 1,2,3 or 4 described Wind Turbine Electric Pitch System systems test beds, it is characterized in that: become the oar motor and be direct current motor or three-phase AC asynchronous motor.
6. Wind Turbine Electric Pitch System systems test bed according to claim 5 is characterized in that: the blade quantity with blower fan is consistent when in use apart from the quantity of system (3) for described loading system (2) and electronic change slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201020201900XU CN201697797U (en) | 2010-05-25 | 2010-05-25 | Test-bed for electric pitch-controlled system of wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020201900XU CN201697797U (en) | 2010-05-25 | 2010-05-25 | Test-bed for electric pitch-controlled system of wind generating set |
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| CN201020201900XU Expired - Fee Related CN201697797U (en) | 2010-05-25 | 2010-05-25 | Test-bed for electric pitch-controlled system of wind generating set |
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Cited By (13)
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| CN102589914A (en) * | 2012-02-01 | 2012-07-18 | 国电南瑞科技股份有限公司 | All-digital testbed for electric pitch control system of wind generating set |
| CN102621980A (en) * | 2012-04-19 | 2012-08-01 | 上海卡鲁自动化科技有限公司 | Hardware-in-loop testing platform used for wind power generation electric variable-pitch system |
| CN102636351A (en) * | 2012-04-18 | 2012-08-15 | 北车风电有限公司 | Testing system for testing wind generating set pitch system |
| CN102662323A (en) * | 2012-04-23 | 2012-09-12 | 南车株洲电力机车研究所有限公司 | Adoptive sliding mode control method and adoptive sliding mode control system of wind power generation variable-pitch actuator |
| CN103061975A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Alternating current pitch control system of wind generating set |
| CN103061976A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Alternating current variable pitch and collecting pitch control system of wind generating set |
| CN103091105A (en) * | 2011-10-27 | 2013-05-08 | 华锐风电科技(集团)股份有限公司 | Test system and test method of wind turbine generator pitch-variation system |
| CN103207373A (en) * | 2012-01-16 | 2013-07-17 | 华锐风电科技(集团)股份有限公司 | Test system and test method of backup power of pitch system of wind turbine generator set |
| CN103207082A (en) * | 2012-01-16 | 2013-07-17 | 华锐风电科技(集团)股份有限公司 | Test system and test method of variable propeller system of wind turbine generator group |
| CN103257315A (en) * | 2013-04-12 | 2013-08-21 | 天津瑞源电气有限公司 | Wind generating set master control system and motor-driven pitch changing system testing device |
| CN104200724A (en) * | 2013-11-27 | 2014-12-10 | 沈阳工业大学 | Large wind turbine generator variable-pitch experiment table and simulation experiment method thereof |
| 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 |
| CN106405415A (en) * | 2016-08-26 | 2017-02-15 | 中车株洲电力机车研究所有限公司 | Wind generating set unidirectional offset load loading device |
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| CN103061975A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Alternating current pitch control system of wind generating set |
| CN103061976A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Alternating current variable pitch and collecting pitch control system of wind generating set |
| CN103091105B (en) * | 2011-10-27 | 2015-06-24 | 华锐风电科技(集团)股份有限公司 | Test system and test method of wind turbine generator pitch-variation system |
| CN103091105A (en) * | 2011-10-27 | 2013-05-08 | 华锐风电科技(集团)股份有限公司 | Test system and test method of wind turbine generator pitch-variation system |
| CN103207082A (en) * | 2012-01-16 | 2013-07-17 | 华锐风电科技(集团)股份有限公司 | Test system and test method of variable propeller system of wind turbine generator group |
| CN103207373A (en) * | 2012-01-16 | 2013-07-17 | 华锐风电科技(集团)股份有限公司 | Test system and test method of backup power of pitch system of wind turbine generator set |
| CN103207373B (en) * | 2012-01-16 | 2015-11-25 | 华锐风电科技(集团)股份有限公司 | The test macro of paddle change system of wind turbines back-up source and method of testing |
| CN103207082B (en) * | 2012-01-16 | 2016-08-17 | 华锐风电科技(集团)股份有限公司 | The test system of paddle change system of wind turbines and method of testing |
| CN102589914A (en) * | 2012-02-01 | 2012-07-18 | 国电南瑞科技股份有限公司 | All-digital testbed for electric pitch control system of wind generating set |
| CN102636351A (en) * | 2012-04-18 | 2012-08-15 | 北车风电有限公司 | Testing system for testing wind generating set pitch system |
| CN102621980A (en) * | 2012-04-19 | 2012-08-01 | 上海卡鲁自动化科技有限公司 | Hardware-in-loop testing platform used for wind power generation electric variable-pitch system |
| CN102662323A (en) * | 2012-04-23 | 2012-09-12 | 南车株洲电力机车研究所有限公司 | Adoptive sliding mode control method and adoptive sliding mode control system of wind power generation variable-pitch actuator |
| CN103257315A (en) * | 2013-04-12 | 2013-08-21 | 天津瑞源电气有限公司 | Wind generating set master control system and motor-driven pitch changing system testing device |
| CN104200724A (en) * | 2013-11-27 | 2014-12-10 | 沈阳工业大学 | Large wind turbine generator variable-pitch experiment table and simulation experiment method thereof |
| 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 |
| CN106405415A (en) * | 2016-08-26 | 2017-02-15 | 中车株洲电力机车研究所有限公司 | Wind generating set unidirectional offset load loading device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20180525 |