CN101022260A - Multi-wind wheel wind electric machine set and control method thereof - Google Patents
Multi-wind wheel wind electric machine set and control method thereof Download PDFInfo
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Abstract
A method for controlling motor set with multiple wind wheel includes collecting information of air-stream, rotary speed, voltage and load on site and transmitting them to remote computer; calculating out wind ward angle and optimum pitch of blade to obtain optimum operation mode by remote computer based on said information; sending parameter of obtained mode to local computer; commanding relevant execution mechanism to regulate pitch angle of blade and windward angle of said motor set by local computer fro making said motor set be on optimum power-generation state. The device for realizing said method is also disclosed.
Description
Technical field
The present invention relates to technical field of wind power generation, the control method of the wind generator of the small-sized wind-powered electricity generation unit of a plurality of wind wheels that are integrated can make full use of cleaning, pollution-free, reproducible wind energy, for human being's production, life provide efficient, electric power energy reliably.
Background technology
At present, the application of wind power generation mainly is divided into two kinds of forms: the one, and in the area that wind-resources is abundant many grid type wind-driven generators are installed arrangement, formed the wind energy turbine set pattern of unit to mains supply according to landform and prevailing wind direction; The 2nd, be mainly used in independent, the single small-sized form of herdsman's household electricity from net type wind-driven generator in the peasants and herdsmen district.
Know, the abundant area of wind resource is generally all located at outlying district or island even sea, the common requirement of the wind turbine generator of dispersed placement can move and carry out remote monitoring under unattended situation, to having relatively high expectations of function, stability and the reliability of wind turbine control system and network system.And, because the variation of wind speed and direction, wheel speed is changed and power output is changed, easily cause the impact of being incorporated into the power networks, reduce the stability of electrical network, and the large-scale wind electricity field is often away from the city, can cause power loss to electricity consumption close quarters long distance power transmission process, increase construction and transportation expenses, reduced efficient, increased energy consumption.On the other hand, for the herdsman of scattered settlement provides the small-sized wind power generator of household electricity, power only tens or hundreds of kilowatt, can only satisfy the use of illumination, small household appliance, can not satisfy production and construction with the needs of power source etc., has defective.
Summary of the invention
The objective of the invention is to avoid the monitoring on the scene at any time of the wind turbine generator running of dispersed placement, with the constant frequency speed Control that causes because of the conversion of wind speed variable effect power and the impact etc. of being incorporated into the power networks, for realizing operation and the remote monitoring under the unattended situation of wind-powered electricity generation unit, reach the power that improves discrete type small-sized wind power generator system, a kind of control method of multi-wind wheel wind electric unit is provided.
For achieving the above object, technical solution of the present invention provides a kind of control method of multi-wind wheel wind electric unit, comprises step:
A, on-the-spot weathercock, speedometer, potentiometer will detect air-flow, rotating speed, voltage parameter, with air-flow, rotating speed and information of voltage input store, be sent to remote computer by small control unit through the internet again;
B, remote computer extract load information automatically, according to air-flow, rotating speed, voltage and load information, according to the control law of design, calculate the facing the wind angle and the optimum blade pitch of multi-wind wheel wind electric unit, draw best operational mode;
C, then with the operational mode Control Parameter that the b step draws, is sent to the local computer control unit of multi-wind wheel wind electric unit through the internet;
D, local computer control unit be the corresponding actuator of start again, and regulating and controlling blade pitch angle, angle, cabin and the accumulation of energy ratio that is incorporated into the power networks make every typhoon power generator parameters optimal, thereby make the multi-wind wheel wind electric unit reach best generating state.
A kind of multi-wind wheel wind electric set, described multi-wind wheel wind electric unit, a plurality of wind wheels are arranged, form by a plurality of wind-powered electricity generations unit, its each wind-powered electricity generation unit all contains wind wheel, drive system, generator and control corresponding system, drive system, generator and control corresponding system, all be electrically connected and be arranged on the relevant position routinely, all generators all are arranged in parallel; A plurality of wind wheels are installed with on support arm, gather according to certain arranged in arrays mode, install concentratedly on the same foundation pylon; Control system comprises sensor-based system, actuator, internet, local computer and remote computer; Sensor-based system links to each other with remote computer by the internet, and remote computer links to each other with local computer by the internet simultaneously, and local computer is electrically connected actuator, and actuator is electrically connected with adjusting vane propeller pitch angle mechanism, angle, cabin mechanism and generator.
Described device, its described support arm is for being horizontally disposed with or with ground one angle being arranged, and the arranged in arrays mode that it is certain is rectangular array or circular array.
Described device, its described sensor-based system is made up of weathercock, speedometer, the potentiometer at scene.
The present invention raises the efficiency the multi-wind wheel wind electric unit, reduces the wastage, and increases the also aspects such as stationarity of network process, has significant advantage.The multi-wind wheel wind electric set is that a plurality of wind wheels gather according to certain arranged in arrays mode, installs the wind-powered electricity generation machine set system on the same foundation pylon concentratedly.Concentrate its wind wheel position, stressedly evenly adjusts easyly, has remarkable advantages aspect the enforcement remote monitoring.
Compare with traditional wind power generation monitoring form, the advantage of control of multi-wind wheel wind electric unit and method is:
1 network control: based on the dcs of the Internet, upper strata mechanisms such as the sensing of wind power generation, decision-making, control and various field apparatus or device are bound up, can realize distant operation and remote control system with less message transmission cost, reduce the messaging device of intermediate link, realized system-wide integrated automation and best performanceization.
2 remote monitoring: wind-powered electricity generation unit operational environment is changeable, the burn into serious wear, the maintenance task is heavy, utilize sensing network system, implement high speed on-line monitoring, decision-making and the control of Fan Equipment and annex thereof, obtain the dynamic parameter of unit operation in real time, analyze the unit operation trend, failure judgement position and formation reason.
3 controls are simple: for the multi-wind wheel wind electric set, adopt a cover control system can realize the controlled target of a plurality of wind-powered electricity generation machines, reduced controlling unit, make control law more simple, help realizing the output of constant frequency power, improved the stability of system.
4 increase power: under the prerequisite that basic operating cost remains unchanged, multi-wind wheel wind electric unit power output at double, the increase of tenfold ground, improved generating efficiency, increased power.
5 reduction expenses: microcomputer that based on network control can be cut down the number of intermediate links to some extent and out of Memory treatment facility, reduced monitoring cost, all need an independent test different with each wind-powered electricity generation machine unit with controlling unit, under the requirement of same power output, low, the cost saving of multi-wind wheel wind electric unit cost, energy consumption is lower.
Description of drawings
The control method structured flowchart of Fig. 1 multi-wind wheel wind electric unit of the present invention;
Fig. 2 wind turbine control system block diagram of the present invention;
Fig. 3 multi-wind wheel wind electric set of the present invention schematic diagram; Fig. 3 a is a wind wheel.
Embodiment
In general, because the instability and the uncertain factor of energy output, the wind-powered electricity generation unit all exists impact in the process that is incorporated into the power networks, and the increase of unit single-machine capacity makes the influence of impact more obvious.Excessive impulse current not only can reduce the reliability and the life-span of blower fan system, and can have a strong impact on the power supply quality and the stability of electrical network, and control is adjusted the stability of energy output and realized steadily being incorporated into the power networks is one of core technology of modern Wind Power Utilization technology.The control method of multi-wind wheel wind electric unit, by sensing network and Long-distance Control, utilization before being incorporated into the power networks speed control and be incorporated into the power networks after power control, improve the reliability and the operational efficiency of wind-powered electricity generation set grid-connection, reduce impact to electrical network and generator, make the impulse current that is incorporated into the power networks be not more than 1.5 times of rated current, realize wind turbine generator maximum good speed row and stable being incorporated into the power networks.By the displacement system unit is carried out the control of rotating speed and power,, improve the operational efficiency of unit simultaneously, increase annual energy output, improve the output quality of power supply to guarantee unit operation safety and reliable.The control method of this multi-wind wheel wind electric unit is carried out remote monitoring for utilizing network technology, and the sensor-based system and the control system of wind turbine generator are carried out the network-based remote operation.
Multi-wind wheel wind electric unit control method, its each wind-powered electricity generation unit, its composition is wind wheel, drive system, generator and corresponding sensor-based system and control system, is illustrated in figure 1 as wind driven generator with multiple wind wheels control method structured flowchart of the present invention.When wind speed v reaches certain numerical value, the impeller entry into service, from starting to rated speed, the mechanical energy that produces arrives generator by drive system, be converted into electric energy P, the sensing network system that transducer constitutes is sent to remote computer with the parameter of corresponding device and environment by internet (Internet) communication, constitutes remote monitoring network system.
In running, at first, weathercock, speedometer, potentiometer will detect parameters such as air-flow, rotating speed, voltage, with information input stores such as air-flow, rotating speed and voltages, be sent to remote computer by small control unit through Internet again.Secondly, remote computer extracts load information automatically, according to air-flow, rotating speed, voltage and load information etc., according to the control law of design, calculates the facing the wind angle and the optimum blade pitch of multi-wind wheel wind electric unit, draws best operational mode.Then, this Control Parameter will be sent to the local computer control unit of multi-wind wheel wind electric unit through Internet, the corresponding actuating mechanism controls adjusting vane of start propeller pitch angle, angle, cabin and the accumulation of energy of being incorporated into the power networks such as compare at the wind-driven generator parameter again, constitute remote auto Control Network system.
The network sensing that forms by the network system of remote monitoring and automatically control and the supervisory control system of remote monitoring, the control purpose of " local simple; long-range complexity " be can reach, the constant frequency speed change, safe operation, remote monitoring of multi-wind wheel wind electric unit, the optimized operation pattern that steadily is incorporated into the power networks finally realized.Fig. 2 is a wind turbine control system block diagram of the present invention.Among the figure, be the controlling object of this control system in the frame of broken lines.Control system comprises sensor-based system, actuator, internet, local computer and remote computer, and all parts connect routinely.Sensor-based system is made up of the weathercock at scene, speedometer, potentiometer etc., various parameters are passed to remote computer by the internet, remote computer instructs local computer according to the parameter of setting by the internet, local computer is controlled actuator's action by instruction, adjusting vane propeller pitch angle, angle, cabin and the accumulation of energy of being incorporated into the power networks such as compare at the wind-driven generator parameter, make the multi-wind wheel wind electric set operate in optimum.
Fig. 3 is for realizing the multi-wind wheel wind electric set schematic diagram of the inventive method, and as shown in the figure, the multi-wind wheel wind electric set is made up of a plurality of wind-powered electricity generations unit, and its each wind-powered electricity generation unit all contains wind wheel 1, drive system, generator and control corresponding system.Wherein, a plurality of wind wheels 1 are installed with on support arm 2, gather according to certain arranged in arrays mode, install concentratedly on same foundation pylon 3.This support arm 2 can also can have an angle with ground for being horizontally disposed with, and its array way can be rectangle or circular array.And drive system, generator and corresponding sensor-based system and control system all are electrically connected and are arranged on the relevant position routinely.All generators all are arranged in parallel.The multi-wind wheel wind electric set that is provided with of combination like this, concentrate wind wheel 1 position, stressedly evenly adjusts easyly, can raise the efficiency, and reduces the wastage, and increases and the stationarity of network process, has remarkable advantages aspect the enforcement remote monitoring.
The main feature of wind driven generator with multiple wind wheels group control method is:
1 sensor-based system utilizes sensing network system, has realized the unmanned wind energy turbine set, especially The island of wind resource prosperity or the wind power system of unpopulated area, the wind-powered electricity generation unit parameter Informationization;
2 remote monitoring have been finished distant operation and remote control system with littler communication cost, realize The networking of wind-powered electricity generation unit Monitoring and Controlling;
Control and the method for 3 closed-loop control multi-wind wheel wind electric units can realize the multi-wind wheel wind electric machine The closed-loop control of group makes the array wind-powered electricity generation unit of installing concentratedly, can obtain best wind To the angle, make power stage more steady, impact reduces to be incorporated into the power networks;
4 to have reduced expense array wind energy turbine set wind energy concentration unanimous on the whole, single generator unit Kong Zhi not increase control complexity and daily Maintenance and Repair expense, and Sensor Network Network and remote monitoring, can be in running decrease cost, or in the certain feelings of fund Increase capacity under the condition improves output.
Claims (4)
1, a kind of control method of multi-wind wheel wind electric unit is characterized in that, comprises step:
A, on-the-spot weathercock, speedometer, potentiometer will detect air-flow, rotating speed, voltage parameter, with air-flow, rotating speed and information of voltage input store, be sent to remote computer by small control unit through the internet again;
B, remote computer extract load information automatically, according to air-flow, rotating speed, voltage and load information, according to the control law of design, calculate the facing the wind angle and the optimum blade pitch of multi-wind wheel wind electric unit, draw best operational mode;
C, then with the operational mode Control Parameter that the b step draws, is sent to the local computer control unit of multi-wind wheel wind electric unit through the internet;
D, local computer control unit be the corresponding actuator of start again, and regulating and controlling blade pitch angle, angle, cabin and the accumulation of energy ratio that is incorporated into the power networks make every typhoon power generator parameters optimal, thereby make the multi-wind wheel wind electric unit reach best generating state.
2, a kind of multi-wind wheel wind electric set, a plurality of wind wheels are arranged, comprise a plurality of wind-powered electricity generations unit, its each wind-powered electricity generation unit, all contain wind wheel, drive system, generator and corresponding actuator, drive system, generator and corresponding actuator all are electrically connected and are arranged on the relevant position routinely, and all generators all are arranged in parallel; It is characterized in that a plurality of wind wheels are installed with on support arm, gather, install concentratedly on the same foundation pylon according to the arranged in arrays mode; Control system comprises sensor-based system, actuator, internet, local computer and remote computer; Sensor-based system links to each other with remote computer by the internet, and remote computer links to each other with local computer by the internet simultaneously, and local computer is electrically connected actuator, and actuator is electrically connected with adjusting vane propeller pitch angle mechanism, angle, cabin mechanism and generator.
3, multi-wind wheel wind electric set as claimed in claim 2 is characterized in that, described support arm is for being horizontally disposed with or with ground one angle being arranged, and its array way is rectangle or circular array or stable geometric array form.
4, multi-wind wheel wind electric set as claimed in claim 2 is characterized in that, described sensor-based system is made up of weathercock, speedometer, the potentiometer at scene.
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| CNA2006100035805A CN101022260A (en) | 2006-02-15 | 2006-02-15 | Multi-wind wheel wind electric machine set and control method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101881254A (en) * | 2009-05-07 | 2010-11-10 | 维斯塔斯风力***集团公司 | Wind turbine |
| CN101994651A (en) * | 2009-08-18 | 2011-03-30 | 株式会社日立制作所 | Windfarm control system, windfarm control device and control method |
| CN102003341A (en) * | 2009-08-31 | 2011-04-06 | 通用电气公司 | System and method for wind formulary |
| CN101498283B (en) * | 2008-02-01 | 2011-07-06 | 北京能高自动化技术有限公司 | Variable pitch control method for large-sized wind-driven generator group |
| CN102570951A (en) * | 2012-02-23 | 2012-07-11 | 苏州市职业大学 | Method for implementing variable speed and constant frequency of wind power generator by using supercapacitor |
| CN103026059A (en) * | 2010-06-18 | 2013-04-03 | 维斯塔斯风力***集团公司 | Control method for a wind turbine |
| CN101918710B (en) * | 2007-11-07 | 2013-10-16 | 维斯塔斯风力***集团公司 | Diagnosis of pitch and load defects |
| CN103541862A (en) * | 2012-07-09 | 2014-01-29 | 远景能源（江苏）有限公司 | Method and system to actively pitch to reduce extreme loads on wind turbine |
| CN103620904A (en) * | 2011-06-22 | 2014-03-05 | 川崎重工业株式会社 | Control method and control system for parallel operation of different types of power generation apparatuses |
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| CN101918710B (en) * | 2007-11-07 | 2013-10-16 | 维斯塔斯风力***集团公司 | Diagnosis of pitch and load defects |
| CN101498283B (en) * | 2008-02-01 | 2011-07-06 | 北京能高自动化技术有限公司 | Variable pitch control method for large-sized wind-driven generator group |
| CN101881254B (en) * | 2009-05-07 | 2014-08-27 | 维斯塔斯风力***集团公司 | Wind turbine |
| CN101881254A (en) * | 2009-05-07 | 2010-11-10 | 维斯塔斯风力***集团公司 | Wind turbine |
| CN101994651A (en) * | 2009-08-18 | 2011-03-30 | 株式会社日立制作所 | Windfarm control system, windfarm control device and control method |
| CN101994651B (en) * | 2009-08-18 | 2013-03-27 | 株式会社日立制作所 | Windfarm control system, windfarm control device and control method |
| CN102003341A (en) * | 2009-08-31 | 2011-04-06 | 通用电气公司 | System and method for wind formulary |
| CN102003341B (en) * | 2009-08-31 | 2015-04-29 | 通用电气公司 | System and method for wind formulary |
| CN103026059A (en) * | 2010-06-18 | 2013-04-03 | 维斯塔斯风力***集团公司 | Control method for a wind turbine |
| CN103026059B (en) * | 2010-06-18 | 2015-09-09 | 维斯塔斯风力***集团公司 | The controlling method of wind turbine |
| CN103620904A (en) * | 2011-06-22 | 2014-03-05 | 川崎重工业株式会社 | Control method and control system for parallel operation of different types of power generation apparatuses |
| CN103620904B (en) * | 2011-06-22 | 2016-03-02 | 川崎重工业株式会社 | Parallel Operation Control method between variety classes Blast Furnace Top Gas Recovery Turbine Unit (TRT) and control system |
| US9391458B2 (en) | 2011-06-22 | 2016-07-12 | Kawasaki Jukogyo Kabushiki Kaisha | Control method and control system for parallel operation of different types of power generation apparatuses |
| CN102570951A (en) * | 2012-02-23 | 2012-07-11 | 苏州市职业大学 | Method for implementing variable speed and constant frequency of wind power generator by using supercapacitor |
| CN102570951B (en) * | 2012-02-23 | 2014-06-11 | 苏州市职业大学 | Method for implementing variable speed and constant frequency of wind power generator by using supercapacitor |
| US9371819B2 (en) | 2012-07-09 | 2016-06-21 | Envision Energy (Denmark) Aps | Method and system to actively pitch to reduce extreme loads on wind turbine |
| CN103541862A (en) * | 2012-07-09 | 2014-01-29 | 远景能源（江苏）有限公司 | Method and system to actively pitch to reduce extreme loads on wind turbine |
| CN107749829A (en) * | 2017-10-09 | 2018-03-02 | 湖南银河电气有限公司 | A kind of Wind turbines state information transmission method of adaptive bandwidth |
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