CN103470448A - Independent hydraulic pitch control system applicable to wind turbine generator set and using method thereof - Google Patents
Independent hydraulic pitch control system applicable to wind turbine generator set and using method thereof Download PDFInfo
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- CN103470448A CN103470448A CN2013104095311A CN201310409531A CN103470448A CN 103470448 A CN103470448 A CN 103470448A CN 2013104095311 A CN2013104095311 A CN 2013104095311A CN 201310409531 A CN201310409531 A CN 201310409531A CN 103470448 A CN103470448 A CN 103470448A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses an independent hydraulic pitch control system applicable to a wind turbine generator set. The independent hydraulic pitch control system applicable to the wind turbine generator set comprises blades mounted on the wind turbine generator set, sensor arrays embedded in the blades, a hydraulic pitch control cabinet, power cables for power supply, communication cables for communication, a measuring module for measuring blade load, and a data processing module. When the blades are under uneven stress, the sensor arrays embedded inside the blades can collect stress signals and thereby can correspondingly perform fine pitch control according to the stress condition of every blade in real time, and further can monitor and control the blade load in real time to achieve the objects of reducing the blade load, improving the generation yield and prolonging the service life of the whole machine.
Description
Technical field
The present invention relates to a kind of independent hydraulically controlled pitch-controlled system that is applicable to the wind-powered electricity generation unit, relate in particular to the hydraulic variable propeller system of a kind of blade load Real-Time Monitoring and control.
Background technique
Hydraulic variable propeller system is comprised of control cabinet, electrofluidic control device, hydraulic station, change oar actuator and propeller pitch angle sensor.When blower fan normally moves, engine room control cabinet is the propeller pitch angle sensor signal from wheel hub by the slip ring collection, according to the real time execution control algorithm, signal is processed, calculated, and the output control signal is to electrofluidic control device, electrofluidic control device drives the change oar actuator that is positioned at wheel hub, thereby realizes becoming in real time the oar function.
Traditional hydraulic vane change mode belongs to the unified oar that becomes, and this control mode is to think that wind speed on whole wind wheel swept surface equals the mean wind velocity of wheel hub in essence, unified three blades is regulated.Obviously this is a kind of more satisfactory control mode, its advantage is that control strategy is simple and easy to realize, the blade pitch device response is fast, but in reality, wind speed is different everywhere at whole wind wheel swept surface, the wearing and tearing of main transmission part are larger than the predicted value of design phase, due to the method that lacks load control, in order to reach the output power of regulation, often need to be equipped with longer blade and other phase Blowing stopper parts, greatly increased cost.Therefore, traditional unified hydraulic vane change mode more and more is difficult to adapt to large-scale wind electricity set pitch control control needs.
In addition, China's wind-resources local climate complexity, because the external causes such as weather cause vane stress inequality or blade injury, thereby cause the hydraulic vane change device rate of fault to improve, reliability decrease, so bulk life time and the economic benefit of blower fan affected, simultaneously, also can have certain fluctuation for its output voltage of grid type blower fan and power, the quality of power supply of output also can be under some influence.
Therefore, need a kind of new technological scheme to address the above problem.
Summary of the invention
The invention provides a kind of independent hydraulically controlled pitch-controlled system that is applicable to the wind-powered electricity generation unit, the blade load is carried out to Real-Time Monitoring and control, reach the purpose that reduces blade loading, improves generated energy and extend machine life.
For achieving the above object, the independent hydraulically controlled pitch-controlled system that the present invention is applicable to the wind-powered electricity generation unit can adopt following technological scheme:
A kind of independent hydraulically controlled pitch-controlled system that is applicable to the wind-powered electricity generation unit, comprise the blade installed on the wind-powered electricity generation unit, be embedded in sensor array in blade, the hydraulic vane change control cabinet, for the power cable of power supply and communication and communication cable, the measurement module for the blade load measure, data processing module;
Wherein, sensor array gathers blade stress information and will collect the blade stress Information Conduction to measurement module; Data processing module is exported initial data and combined data simultaneously, and has data backup and memory function.With background technique, compare, sensor array is set in the present invention in blade, thereby when vane stress is uneven, be embedded in sensor array in blade gather stress signal can make each blade corresponding to system respectively stressed situation finely tune the change oar, thereby can carry out Real-Time Monitoring and control to the blade load, reach the purpose that reduces blade loading, improves generated energy and extend machine life.
In addition, the built-in industrial controller, relay, circuit breaker, terminal, Surge Protector, temperature sensing and the control gear that comprise low form in the hydraulic vane change control cabinet.
Establish DSP digital signal processing unit, RS442 full-duplex serial interface and integrated alarm and warning function in described measurement module.
The above-mentioned using method that is applicable to the independent hydraulically controlled pitch-controlled system of wind-powered electricity generation unit can adopt following technological scheme:
When the wind-powered electricity generation unit normally moves, the hydraulic variable propeller system control cabinet carries out communication by communication interface and engine room control cabinet, and feedback becomes the oar data, receives and becomes the oar instruction; Simultaneously pitch control cabinet gathers blade pitch angle signal, blade load signal, line pressure signal, energy storage pressure signal, temperature sensor signal, through computing, and, according to the control command of master control, drives and becomes oar actuator, realizes becoming in real time oar;
The sensor array be embedded in blade when vane stress is uneven gathers stress signal and passes to measurement module, the microstress measuring cell of data through arranging in measurement module is delivered to data processing module after processing, data processing module data are gathered and process after final data is sent to the hydraulic vane change control cabinet, the hydraulic vane change control cabinet is controlled actuator and is become in real time oar, on the basis of unified change oar, blade is finely tuned.
The accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is applicable to the independent hydraulically controlled pitch-controlled system of wind-powered electricity generation unit.
Fig. 2 is the schematic diagram that the present invention is applicable to independent pitch part in the independent hydraulically controlled pitch-controlled system of wind-powered electricity generation unit.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiments only is not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Refer to shown in Fig. 1 and Fig. 2, the present invention discloses a kind of independent hydraulically controlled pitch-controlled system that is applicable to the wind-powered electricity generation unit, comprises the high-protection level hydraulic vane change control cabinet of installing, protecting for device; Power cable and communication cable for power supply and communication; Be embedded in the sensor array in blade, for lamination and sensor thermal expansion, temperature compensation function arranged, be not subject to the impact of electromagnetic interference and thunder and lightning; Be applicable to the high speed of wind-power electricity generation occasion, anti-interference optical fiber interconnections cable; For the blade load measure, in establish the high speed measurement module of DSP digital signal processing unit, RS442 full-duplex serial interface and integrated alarm and warning function; Can export initial data and combined data, configuration multiple kinds and with the data processing module of the data backup of SD card and memory function simultaneously.
Further:
Pitch control cabinet gathers the signals such as pressure in propeller pitch angle, wheel hub, temperature, by the CAN communication by signal feed back to engine room control cabinet, accept the engine room control cabinet control command simultaneously, drive to become oar actuator, realize the unified oar that becomes.In addition, the blade sensor array gathers blade stress information, be transmitted to measurement module by fiber optic cables, carry out communication by the RS442 serial line interface between measurement module and data processing module, data are sent to pitch-controlled system PLC by serial communication after treatment, then are sent to engine room control cabinet by the CAN communication, after calculation process, by engine room control cabinet, send instruction, pitch control cabinet is accepted order-driven and is become oar actuator, realizes the blade fine setting.
The design of hydraulic vane change control cabinet has taken into full account the impact of environment; reach the security level of IP54; the parts such as built-in industrial controller, relay, circuit breaker, terminal, Surge Protector, temperature sensing and control gear that comprise low form in cabinet, realize calculating, communication, safety protection, temperature measurement and control, the anxious function such as stop by above device.
Power cable and communication cable have played the function of electric power transfer and communication, and wherein communication cable is accomplished shielding layer grounding, prevent better the external signal interference.
Blade sensor adopts the optical fiber Bragg grating sensing element, has absolute stress measurement technology, without temperature, floats impact, is not subject to the impact of electromagnetic interference and thunderbolt, and thermal expansion is had to temperature compensation function.In addition, blade sensor is embedded in blade, and lamination lower sensor paster can not be damaged.
Measurement module and data processing module adopt the DC24V power supply, can adapt to the bad working environments in wheel hub.Adopt the RS422 serial communication between module, measurement module is integrated quotation and warning signal, and data processing module is supported SD card data backup and storage.
The above-mentioned using method that is applicable to the independent hydraulically controlled pitch-controlled system of wind-powered electricity generation unit is:
Refer to shown in Fig. 1, when blower fan normally moves, the hydraulic variable propeller system control cabinet carries out communication by communication interface and engine room control cabinet, and feedback becomes the oar data, receives and becomes the oar instruction; Power cable through slip ring provides the AC230V power supply for pitch control cabinet; Pitch control cabinet gathers blade pitch angle signal, blade load signal, line pressure signal, energy storage pressure signal, temperature sensor signal simultaneously; through computing; and according to the control command of master control; the output control signal is to electrofluidic control device; electrofluidic control device drives and becomes oar actuator; realize becoming in real time oar, meet the needs such as the wind-powered electricity generation unit normally starts, grid-connected, generating, shutdown.
The blower fan long-play can produce wearing and tearing to main transmission part, in addition due to external causes such as weather, such as icing, thunderbolt etc., can make vane stress uneven or damage, therefore on the unified basis that becomes oar, blade independently be monitored and control seems extremely important.As shown in Figure 2, the sensor array be embedded in blade when vane stress is uneven gathers stress signal, high-speed optical-fiber cable passes to measurement module by data, data are delivered to data processing module by the RS422 serial communication after the microstress measuring cell in module and the processing of DSP Digital Signal Processing element, data processing module gather and process after by the RS422 serial communication, final data is sent to pitch control cabinet PLC equally, pitch control cabinet and engine room control cabinet directly send by the CAN communication, accept data and instruction, the final actuator that controls becomes oar in real time, on the basis of unified change oar, blade is finely tuned, meet the reasonable request of blade load, improve generated energy, extend the wind-powered electricity generation unit durability.
In addition, native system has designed the Anti-surging device of different electric pressures, the theft-resistant link chain loop of being controlled by safety relay, the temperature control system formed by PT100, temp controller, heater, fan, tackle the urgency of various faults and stop control loop, these designs have all significantly improved the safety reliability of this system.The cabinet of pitch control cabinet adopts 2.0mm thickness 304 stainless steels, and the cabinet security level reaches IP54, can effectively guarantee normally operation in the rugged environment such as dust storm, humidity.
Claims (4)
1. an independent hydraulically controlled pitch-controlled system that is applicable to the wind-powered electricity generation unit is characterized in that: comprise the blade installed on the wind-powered electricity generation unit, be embedded in sensor array in blade, the hydraulic vane change control cabinet, for the power cable of power supply and communication and communication cable, the measurement module for the blade load measure, data processing module;
Wherein, sensor array gathers blade stress information and will collect the blade stress Information Conduction to measurement module;
Data processing module is exported initial data and combined data simultaneously, and has data backup and memory function.
2. the independent hydraulically controlled pitch-controlled system that is applicable to the wind-powered electricity generation unit according to claim 1 is put, and it is characterized in that: the built-in industrial controller, relay, circuit breaker, terminal, Surge Protector, temperature sensing and the control gear that comprise low form in the hydraulic vane change control cabinet.
3. the independent hydraulically controlled pitch-controlled system that is applicable to the wind-powered electricity generation unit according to claim 2, is characterized in that: establish DSP digital signal processing unit, RS442 full-duplex serial interface and integrated alarm and warning function in described measurement module.
4. according to the described using method that is applicable to the independent hydraulically controlled pitch-controlled system of wind-powered electricity generation unit of any one in claim 1-3, it is characterized in that:
When the wind-powered electricity generation unit normally moves, the hydraulic variable propeller system control cabinet carries out communication by communication interface and engine room control cabinet, and feedback becomes the oar data, receives and becomes the oar instruction; Simultaneously pitch control cabinet gathers blade pitch angle signal, blade load signal, line pressure signal, energy storage pressure signal, temperature sensor signal, through computing, and, according to the control command of master control, drives and becomes oar actuator, realizes becoming in real time oar;
The sensor array be embedded in blade when vane stress is uneven gathers stress signal and passes to measurement module, the microstress measuring cell of data through arranging in measurement module is delivered to data processing module after processing, data processing module data are gathered and process after final data is sent to the hydraulic vane change control cabinet, the hydraulic vane change control cabinet is controlled actuator and is become in real time oar, on the basis of unified change oar, blade is finely tuned.
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| CN201310409531.1A CN103470448B (en) | 2013-09-10 | 2013-09-10 | A kind of independent hydraulic pitch control system and using method being applicable to Wind turbines |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681393A (en) * | 2019-03-06 | 2019-04-26 | 华研风电设备制造（大连）有限公司 | A kind of Wind turbines conductive variable-pitch sliding ring of intelligence |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110142594A1 (en) * | 2010-06-29 | 2011-06-16 | Thomas Ernst Dinjus | Methods and systems for monitoring operation of a wind turbine |
| CN102168650A (en) * | 2011-05-26 | 2011-08-31 | 连云港杰瑞电子有限公司 | Uniform and independent variable pitch hybrid control method for megawatt wind turbine based on master control |
| CN102536649A (en) * | 2011-12-28 | 2012-07-04 | 燕山大学 | Independent pitch variable system for proportional valve-controlled hydraulic motor |
| CN202402210U (en) * | 2011-12-29 | 2012-08-29 | 一重集团大连设计研究院有限公司 | Paddle changing system for ocean high-power wind generation set |
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- 2013-09-10 CN CN201310409531.1A patent/CN103470448B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110142594A1 (en) * | 2010-06-29 | 2011-06-16 | Thomas Ernst Dinjus | Methods and systems for monitoring operation of a wind turbine |
| CN102168650A (en) * | 2011-05-26 | 2011-08-31 | 连云港杰瑞电子有限公司 | Uniform and independent variable pitch hybrid control method for megawatt wind turbine based on master control |
| CN102536649A (en) * | 2011-12-28 | 2012-07-04 | 燕山大学 | Independent pitch variable system for proportional valve-controlled hydraulic motor |
| CN202402210U (en) * | 2011-12-29 | 2012-08-29 | 一重集团大连设计研究院有限公司 | Paddle changing system for ocean high-power wind generation set |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681393A (en) * | 2019-03-06 | 2019-04-26 | 华研风电设备制造（大连）有限公司 | A kind of Wind turbines conductive variable-pitch sliding ring of intelligence |
| CN109681393B (en) * | 2019-03-06 | 2023-11-03 | 华研风电设备制造（大连）有限公司 | Intelligent conductive variable-pitch slip ring for wind turbine generator |
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| CN103470448B (en) | 2015-09-02 |
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