CN101749183B - Wind power station control system and wind power station - Google Patents
Wind power station control system and wind power station Download PDFInfo
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- CN101749183B CN101749183B CN2009101270577A CN200910127057A CN101749183B CN 101749183 B CN101749183 B CN 101749183B CN 2009101270577 A CN2009101270577 A CN 2009101270577A CN 200910127057 A CN200910127057 A CN 200910127057A CN 101749183 B CN101749183 B CN 101749183B
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Abstract
The invention relates to a wind power station control system and a wind power station and is characterized in that the wind power station comprises a plurality of wind machines with the function of blade angle control and the wind power station control system capable of controlling each wind machine in a centralized manner, wherein the wind power station control system acquires wind velocity of each wind machine in the wind power station by a transmission interface through a communication module and calculates the average wind velocity of the wind power station via a processing module, so that when the wind power station is in a primary operation, each impeller of the wind machine firstly executes alignment process to drive the blade of each impeller of the wind machine to move to an initial position, then the rotor angle position value of common rotation speed can be calculated by using the corresponding incidence relationship between the average wind velocity and the impeller rotation speed and collocating with the operation processing rule, and then the rotor angle position value is sent to each wind machine in the wind power station by the transmission interface so as to enable each wind machine to drive each of the impellers thereof to synchronously rotate from the initial position according to the rotor angle position value, thus improving visual impact caused by the wind power station.
Description
The present invention advocates that the application number that was proposed on December 12nd, 2008 is the preference of 200810172755.4 Chinese patent application case.
Technical field
The present invention relates to a kind of wind energy turbine set technology, more detailed it, relate to a kind of usefulness so that synchronous operated wind power station control system of all wind energy conversion systems and wind energy turbine set in the wind energy turbine set, and be specially adapted to wind energy turbine set near load centre.
Background technique
Warm up crisis for solving fossil fuel supply problem and weather; from 21 century; the popularization of the renewable sources of energy has been subjected to very big attention; comprise hydroelectric power, wind energy, solar photoelectric, solar thermal energy, underground heat, give birth to mass-energy, ocean energy etc.; wherein be acknowledged as with wind energy again and on development scale and cost of electricity-generating, have maximum progress space simultaneously; therefore the installed capacity and the industry size of global wind-power electricity generation all keep high rate of growth in recent years, and this trend is estimated at least and can be kept more than 10 years again.
And most of generating set of renewable energy resource does not all have the problem of blowdown, and thinks that generally wind-power electricity generation can not produce any pollution in power generation process yet, and wind energy is inexhaustible, nexhaustible, need not worry the problem of supply of fuel cost.But even so, because wind energy conversion system maximizes day by day, see sight by the formed wind energy turbine set of large scale wind power machine clustering (wind farm) is moving especially, can cause some negative effects (as visual impact, noise pollution, electromagnetic interference, public safety, to the influence of Wildlife, to the influence of tourism and to influence of community's interests etc.) in fact to natural ecological environment or humanistic environment, national governments and relevant unit or interest group are all to this suitable attention.For the general mankind, visual impact and noise pollution that the wind-powered electricity generation place produces are bigger to the influence of daily life.With regard to propagation length, the noise effect scope is usually all in 1 to 2 kilometer, and the consideration curvature of the earth, under the condition of sunny weather and ward, the building that height is 70 meters still can clearly be watched outside 30 kilometers, and the land-based area wind energy conversion system that install recently in the whole world mostly is 2 megawatts (2MW) type up and down, high about 70 to 80 meters of its pylon, blade tip Gao Zekeda is more than 150 meters, so the visual impact of its generation is than the more difficult avoidance of noise.And, the large scale wind power machine blade mostly is slender type, sharp arrow of likeness in form or the sharp sword seen far away, can produce the sensation of cutting or puncture to space or skyline, particularly, when rotating, the blade of each wind energy conversion system is provided with the different of position and direction because of wind energy conversion system in the whole wind electric field, the wind-force of being accepted and the windage of experience also can be different, cause angle of swing also different, so, interference to sight line is bigger, these sight lines are disturbed birds in-flight, have been observed to present " fence effect ", also are, though wheel speed is slow, birds mistakes impact rate is not high, but the interference of blade rotation orders about the swarming birds and walk around the wind energy turbine set row, upsets its flight path and formation originally.
In order to improve the problem that wind energy turbine set causes visual impact, as International PCT patent announcement WO2007074181A1 patent of invention, U. S. Patent announces the US2003035725A1 patent of invention and Japanese patent laid-open publication gazette JP2004019515A patent of invention five equilibrium be you can well imagine out the mode of the blade movement profile being wrapped up with the different frames structure, to reduce visual impact, but aforementioned every technology all relates to the change to existing wind energy conversion system hardware device, will expend great amount of cost; In addition, for example also having, the International PCT patent announcement proposes for WO2007080234A1 number to give the blade movement profile of wind energy conversion system soft, be about to this blade and change the half cone build into by slender type, to reduce visual impact, but this kind improvement technology, not only same cost of idleness, and the shape of change blade is unsuitable for the application of large scale wind power machine.
For fear of change to existing wind energy conversion system hardware device, and can reach simultaneously and improve the problem that wind energy turbine set causes visual impact, have again U. S. Patent for example announce the US2006267347A1 patent of invention, and U. S. Patent announce the US6661111B1 patent of invention and propose directly to detect the shade that is produced when wind turbine impeller rotates respectively, and whether the variation of judging shade surpasses preset value, if surpass setting value, expression will produce the vision puzzlement to contiguous housing, then stop the wind energy conversion system running.
But, the drawback that has caused the cost waste though aforementioned techniques has been avoided changing existing wind energy conversion system hardware device must stop the wind energy conversion system running, thus in case the variation of shade exceeds setting value, to influence the generating efficiency of wind energy turbine set, real in the original intention that wind energy conversion system is set.
Hold above-mentioned, because distributing power generation system (Dispersed Generation System) is electric power system (Power System) future development trend, the setting of wind energy turbine set moves closer to load centre (Load Center), also be bigger metropolitan area of power consumption or industrial region, its densely populated degree is high, therefore visual impairment can become the obstacle that wind energy is promoted, and is unfavorable for the universalness of the renewable sources of energy, also promptly is an impediment to the work effectiveness that national governments promote carbon reduction.
In sum, how a kind of wind power station control system and wind energy turbine set that solves disadvantages of the prior art is proposed, with not changing existing hardware equipment and not influencing under the prerequisite of generating efficiency, improve the visual impact that wind energy turbine set causes, real is the technical problem that present anxious desire solves.
Summary of the invention
In view of the shortcoming of above-mentioned prior art, the invention provides and a kind ofly do not changing existing hardware equipment and do not influencing under the prerequisite of generating efficiency, improve the wind power station control system and the wind energy turbine set of the visual impact that wind energy turbine set causes.
For making the present invention can solve aforementioned prior art problems, wind power station control system provided by the present invention, be applied to have in the wind energy turbine set of a plurality of wind energy conversion systems, wherein, respectively this wind energy conversion system is provided with the impeller that comprises a plurality of blades, this wind power station control system comprises at least: communication module, in order to carry out exchanges data with this wind energy conversion system respectively; And puocessing module, the foundation respectively air speed data of this wind energy conversion system calculates the mean wind velocity value, and according to the corresponding incidence relation of the default mean wind velocity of maximum power point tracking principle with rotor speed, with the common rotating speed (collective rotor speed) that calculates wind turbine impeller, and when this wind energy turbine set turns round for the first time, produce initial corner instruction earlier and be sent to respectively this wind energy conversion system by this communication module, the impeller that makes this wind energy conversion system is respectively carried out contraposition program (alignment process) and the blade that orders about on the impeller of this wind energy conversion system respectively moves to initial position, afterwards, capture this mean wind velocity value according to an every interval section sampling time, and the calculation process rule of arranging in pairs or groups according to this, to calculate the rotor angular position value of this common rotating speed, and be sent to respectively this wind energy conversion system by this communication module, ordering about respectively for this wind energy conversion system respectively, the impeller of this wind energy conversion system all carries out run-in synchronism according to this rotor angular position value from this initial position, wherein, the calculation process rule with this rotor speed value and this sampling time section product add the rotor angular position value that this preceding primary sample time point is calculated, to obtain respectively this wind energy conversion system in the rotor angular position value of current sampling time point.
Hold above-mentioned, for making the present invention can solve aforementioned prior art problems, wind energy turbine set provided by the present invention, at least comprise: a plurality of wind energy conversion systems, wind power station control system and connect the respectively transmission interface of this wind energy conversion system and this wind power station control system, and respectively this wind energy conversion system is provided with the impeller that comprises a plurality of blades; Wherein, this wind power station control system comprises at least: communication module, in order to carry out exchanges data by this transmission interface and this wind energy conversion system respectively; And puocessing module, the foundation respectively air speed data of this wind energy conversion system calculates the mean wind velocity value, and according to the corresponding incidence relation of the default wind speed of maximum power point tracking principle with rotor speed, with the common rotating speed (collective rotor speed) that calculates wind turbine impeller, and when this wind energy turbine set turns round for the first time, produce initial corner instruction earlier and be sent to respectively this wind energy conversion system by this communication module, the impeller that makes this wind energy conversion system is respectively carried out contraposition program (alignment process) and the blade that orders about on the impeller of this wind energy conversion system respectively moves to initial position, afterwards, capture this mean wind velocity value according to an every interval section sampling time, and the calculation process rule of arranging in pairs or groups according to this, calculate the rotor angular position value of this common rotating speed and be sent to respectively this wind energy conversion system by this communication module, the impeller of this wind energy conversion system all carries out run-in synchronism according to this rotor angular position value from initial position to order about respectively, wherein, the calculation process rule with this rotor speed value and this sampling time section product add the rotor angular position value that this preceding primary sample time point is calculated, to obtain respectively this wind energy conversion system in the rotor angular position value of current sampling time point.
In a specific embodiment, this wind energy conversion system comprises generator unit; Driving mechanism; Power conversion unit; The wind speed detection unit; And control unit.Wherein, this generator unit of this wind energy conversion system is a generator; This power conversion unit is electric power converter (Power Converter); This wind speed detection unit is a recording anemometer.
In addition, the puocessing module of this wind power station control system also comprises: the unit is set, the corresponding incidence relation of wind speed and rotor speed is set; The corner command unit is in order to provide the output angle instruction; Sampling unit, connect respectively this control unit of this wind energy conversion system by this communication module, in order to after this corner command unit output angle instruction, the air speed value of the current sampling time point that section sampling time acquisition in every interval is detected by its corresponding air speed detection unit by this control unit respectively, and calculate the mean wind velocity value of this wind energy turbine set according to this, and exported; Search the unit, in order to receive the mean wind velocity value of this wind energy turbine set that this sampling unit captures, and arrange in pairs or groups according to this that this is provided with the corresponding incidence relation of the set wind speed in unit and rotor speed, hunt out and the corresponding rotor speed value of the current mean wind velocity value that captures; And computing unit, in order to receive the rotor speed value exported this search unit and should sampling time section, and the calculation process rule of arranging in pairs or groups according to this, calculate the rotor angular position value of each wind energy conversion system at current sampling time point, wherein, this computing unit when calculating the rotor angular position value of this wind energy conversion system respectively at current sampling time point, the rotor angular position value of also arranging in pairs or groups and being calculated in preceding primary sample time point.
In addition, this wind power station control system also comprises storage module, and in order to storing the corresponding incidence relation of the set wind speed of this puocessing module and rotor speed, and this puocessing module is in rotor angular position value that each sampling time point calculated; Particularly, the rotor angular position value that this calculation process rule is calculated at preceding primary sample time point for this computing unit that this storage module is stored add rotor speed value that this search module is exported and this sampling time section product, to obtain respectively this wind energy conversion system in the rotor angular position value of current sampling time point.Wherein, when the contraposition program, this computing unit is when first calculating, and the rotor angular position value that this preceding primary sample time point is calculated is common preset initial value.
Moreover this is provided with wind speed is according to maximum power point tracking (Maximum Power Point Tracking with the corresponding incidence relation of rotor speed; MPPT) principle institute sets up in advance, and this is provided with the unit also according to wind energy turbine set landforms characteristic and the auxiliary corresponding incidence relation that wind speed and rotor speed are set of this feature of wind machine respectively.
In one embodiment of the invention, this initial position is meant on this wind energy turbine set that the initial blade on the impeller of this wind energy conversion system respectively all is positioned on the same position.In another embodiment of the present invention, this initial position is meant on this wind energy turbine set the position of the predetermined angle of being separated by between the initial blade on the impeller of this wind energy conversion system respectively.
Preferably, respectively the blade of the impeller of this wind energy conversion system has part or whole application or pattern inequality.
And this transmission interface is Field bus (field bus) or Ethernet (Ethernet) etc.
Than prior art, wind power station control system of the present invention mainly is by carrying out the contraposition program of starting stage, and conventional run-in synchronism program subsequently, make the running of wind energy turbine set can have the neat visual sense of beauty of profile, therefore can significantly improve visual impact.Because wind energy conversion system has a plurality of blades, for the vision aesthetic effect, can be again according to landforms and scenery around the wind energy turbine set, each blade surface of wind energy conversion system is drawn identical or local color inequality of application or pattern, make impeller in the running, except having the neat visual sense of beauty of profile, also can have the visual sense of beauty of cyclically-varying color or pattern.
Description of drawings
Fig. 1 is for showing the configuration schematic diagram between wind power station control system of the present invention and a plurality of wind energy conversion system;
Fig. 2 is for showing the basic framework block diagram of wind power station control system of the present invention; And
Fig. 3 is for showing the basic framework block diagram of wind energy turbine set of the present invention.
The primary component symbol description
1 wind energy turbine set
10 wind power station control systems
11 communication modules
12 puocessing modules
121 are provided with the unit
122 corner command units
123 sampling units
124 search the unit
125 computing units
13 storage modules
14 transmission interfaces
15,15 ', 15 " wind energy conversion system
151,151 ', 151 " impeller
152,152 ', 152 " driving mechanism
153,153 ', 153 " generator unit
154,154 ', 154 " power conversion unit
155,155 ', 155 " wind speed detection unit
156,156 ', 156 " control unit
Embodiment
Below by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the content that this specification disclosed.
See also Fig. 1, for showing the configuration schematic diagram of 15 of wind power station control system 10 of the present invention and a plurality of wind energy conversion systems.As shown in the figure, this wind power station control system 10 is applied to have the wind energy turbine set (not shown) of a plurality of wind energy conversion systems 15, wherein, respectively this wind energy conversion system 15 is provided with the impeller (not shown) that comprises a plurality of blades, preferably, respectively the blade of the impeller of this wind energy conversion system 15 has part or whole application or pattern inequality.
See also Fig. 2, for showing the basic framework schematic representation of wind power station control system 10 of the present invention and wind energy turbine set 1.As shown in the figure, this wind power station control system 10 comprises: communication module 11, puocessing module 12 and storage module 13, to calculate the mean wind velocity value according to the air speed data of each wind energy conversion system 15 by this puocessing module 12, and the corresponding incidence relation of default wind speed and rotor speed, with the common rotating speed (collectiverotor speed) of the impeller (not shown) that calculates wind energy conversion system 15; And when this wind energy turbine set 1 turns round for the first time, produce initial corner instruction earlier and be sent to respectively this wind energy conversion system 15 by this communication module 11, the impeller that makes this wind energy conversion system 15 is respectively carried out contraposition program (alignment process) and the blade (not shown) that orders about on the impeller of this wind energy conversion system 15 respectively moves to initial position, afterwards, capture this mean wind velocity value according to an every interval section sampling time, and the calculation process rule of arranging in pairs or groups according to this, calculate the rotor angular position value of common rotating speed and be sent to respectively this wind energy conversion system 15 by this communication module 11, the impeller of this wind energy conversion system 15 all carries out run-in synchronism according to this rotor angular position value from this initial position to order about respectively.Particularly, this communication module 11 is in order to carry out exchanges data by transmission interface 14 and this wind energy conversion system 15 respectively, particularly, this transmission interface 14 can be serial communication media (serial communication media), carries out two-way real-time (real-time) exchanges data according to the fixed cycle by this transmission interface 14 for each wind energy conversion system in this wind power station control system and the wind energy turbine set; 12 of this puocessing modules can comprise: unit 121, corner command unit 122, sampling unit 123 are set, search unit 124, computing unit 125.Below promptly above-mentioned each assembly of wind power station control system 10 of the present invention is elaborated.
This is provided with unit 121 in order to foundation wind energy turbine set landforms characteristic and these wind energy conversion system 15 characteristics respectively, and according to maximum power point tracking (Maximum Power Point Tracking; MPPT) principle (this is a technology well-known to those skilled in the art, is not described in detail in this) is provided with the corresponding incidence relation of wind speed and rotor speed.In the present embodiment, this correspondence incidence relation is presented in the tabulation mode, but not as limit, in other embodiments, also can adopt modes such as coordinate diagram to present.
This storage module 13 is in order to storing the corresponding incidence relation that the set wind speed in unit 121 and rotor speed are set of this puocessing module 12, and this computing unit 125 is in rotor angular position value (being detailed later) that each sampling time point calculated.
This corner command unit 122 is in order to provide the output angle instruction.In the present embodiment, this corner command unit 122 is an operation-interface, produce to provide the user to operate and the output angle instruction, but not as limit.In other embodiments, also can be at interval certain hour or order about this corner command unit 122 output angles instruction automatically by the modes such as setting of time.
This sampling unit 123 is in order to after this corner command unit 122 output angles instruction, and the acquisition of an every interval section sampling time is the air speed value of these wind energy conversion system 15 current sampling time points respectively, and calculates the mean wind velocity value of this wind energy turbine set 1 according to this, and is exported.
This search unit 124 is in order to the mean wind velocity value of this wind energy turbine set 1 of receiving this sampling unit 123 and being captured, and the corresponding incidence relation of the stored wind speed of this storage module 13 of arranging in pairs or groups according to this and rotor speed, hunt out and the corresponding rotor speed value of the current mean wind velocity value that captures, and exported.
This computing unit 125 in order to the rotor speed value that receives this search unit 124 and exported and should sampling time section, and the rotor angular position value that calculated at preceding primary sample time point of these storage module 13 these stored computing units 125 of arranging in pairs or groups according to this, and the calculation process of arranging in pairs or groups according to this rule calculates the rotor angular position value of each wind energy conversion system 15 at current sampling time point.Particularly, this computing unit 125 can utilize according to the maximum power point tracking principle the wind speed set up in advance and the corresponding relation of vane rotor rotating speed (rotor speed), derive the common rotating speed (collective rotor speed) of the impeller of this wind energy conversion system 15, utilize digital integration to calculate the common corner instruction (collective rotor angular position command) of impeller following one-period then, i.e. this computing unit 125 rotor speed value (ω that this search unit 124 can be exported
*[i]) multiply each other with section sampling time (Δ t), add the rotor angular position value (θ that these storage module 13 these stored computing units 125 are calculated at preceding primary sample time point
*[i-1]), with respectively this wind energy conversion system 15 of calculating this wind energy turbine set rotor angular position value (θ at current sampling time point
*[i]); Wherein, respectively this wind energy conversion system 15 of this wind energy turbine set 1 is at the rotor angular position value (θ of current sampling time point
*[i]) the calculation process rule as shown in Equation (1):
[0052]θ
*[i]=θ
*[i-1]+ω
*[i] * Δ t............... formula (1)
[0053]Hold above-mentioned, in the formula in the above-described embodiments (1), this computing unit 125 when the contraposition program, θ
*The initial value of [i-1] is zero or default fixed value.And after finishing the contraposition program, can enter conventional run-in synchronism program (normal synchronous operation process).
Hold above-mentioned, when transmitting angle instruction that this corner command unit 122 exported to respectively this wind energy conversion system 15 of this wind energy turbine set 1, when the contraposition program, the blade that this wind energy conversion system 15 is respectively ordered about on the impeller of this wind energy conversion system 15 respectively moves to initial position, to conventional run-in synchronism program, the rotor angular position value of being calculated at every this computing unit 125 of an interval section parallel convey sampling time is to each wind energy conversion system 15 of this wind energy turbine set, and ordering about respectively for this wind energy conversion system 15 respectively, the impeller of this wind energy conversion system 15 all carries out run-in synchronism according to this rotor angular position value.Preferably, this initial position is meant on this wind energy turbine set 1 that the blade on the impeller of this wind energy conversion system 15 respectively all is positioned on the same position, but not as limit.In other embodiments, this initial position also can be designed on this wind energy turbine set 1 predetermined angle of being separated by between the blade on the impeller of this wind energy conversion system 15 respectively, particularly, be that wind power station control system 10 can be according to the layout (layout) and the vision aesthetic effect of actual wind energy turbine set, specify the respectively predetermined angular position of this wind energy conversion system 15, as the particular offset of these wind energy conversion system 15 initial positions (specific offset) respectively, respectively this wind energy conversion system in the running, with its particular offset and common corner instruction addition, as the respectively inner corner instruction of this wind energy conversion system 15 from this wind power station control system 10.
As shown in Figure 3, be shown as the basic framework block diagram of the wind energy turbine set 1 of using wind power station control system 10 of the present invention.As shown in the figure, wind energy turbine set 1 provided by the present invention comprises: a plurality of wind energy conversion systems (in the following example with 3 wind energy conversion systems 15,15 ', 15 " be example, but not as limit), wind power station control system 10 and parallel respectively this wind energy conversion system 15,15 ', 15 that connects " with the transmission interface 14 of this wind power station control system 10.This wind power station control system 10 is made up of as shown in Figure 2 communication module 11, puocessing module 12 and storage module 13; And this puocessing module 12 also comprises: unit 121, corner command unit 122, sampling unit 123 are set, search unit 124 and computing unit 125, and this transmission interface 14 can for example be Field bus (field bus) or Ethernet (Ethernet) etc.Wherein, respectively this wind energy conversion system 15 (or 15 ' or 15 ") includes the driving mechanism 152 that impeller 151 (or 151 ' or 151 "), an end connect this impeller 151 (or 151 ' or 151 ") (or 152 ' or 152 "), connects this driving mechanism 152 generator unit 153 (or 153 ' or 153 "), power conversion unit 154 (or 154 ' or 154 "), the wind speed detection unit 155 (or 155 ' or 155 ") of the other end of (or 152 ' or 152 ") and control unit 156 (or 156 ' or 156 ").
In a specific embodiment, this impeller 151 is made of a plurality of blade, preferably, respectively the blade (not shown) of the impeller 151 of this wind energy conversion system 15 (15 ', 15 ") (151 ', 151 ") has part or whole application or patterns inequality, with suitable mitigation visual impact.
This driving mechanism 152 is subjected to extraneous wind-force effect and rotates and moved at this impeller 151 that connects the one end, the motion of this driving mechanism 152 then impels this generator unit 153 that is connected with these driving mechanism 152 the other ends to transfer kinetic energy to by mechanical energy and generates electricity, otherwise, when torque, rotating speed and the output power of this generator unit 153 change, also can drive this driving mechanism 152 motions, and the running of this impeller 151 that further interlock is connected with this driving mechanism 152, thereby the running of this impeller 151 of corresponding adjustment.In the present embodiment, this generator unit 153 is a generator.
This power conversion unit 154 electrically connects this generator unit 153, in order to torque, rotating speed and the output power of controlling this generator unit 153, and the variation of torque, rotating speed and output power by this generator unit 153 control and the running of this generator unit 153 by the impeller 151 of these driving mechanism 152 couplings indirectly.In the present embodiment, this power conversion unit 154 is electric power converter (Power Converter), particularly, this power conversion unit 154 is to be made of corner loop, rotating speed loop, torque circuit, current loop and inverter, because of electric power converter is a device well known to those skilled in the art, no longer be that literary composition describes in detail at this.
This wind speed detection unit 155 is in order to detect respectively this wind energy conversion system 15,15 ', 15 " air speed value that current present position received.
This control unit 156 electrically connects with this driving mechanism 152, this wind speed detection unit 155 and this power conversion unit 154 respectively, and connects this wind power station control system 10 by this transmission interface 14.
But, the major character of the wind power station control system 10 in the present embodiment and previous embodiment (as shown in Figure 1) are similar, so this only in this wind power station control system 10 of simple declaration with each wind energy conversion system 15,15 ', 15 " sampling unit 123 (remaining part can with reference to aforesaid wind power station control system) of interconnected relationship is arranged; particularly; this sampling unit 123 is in order to after this corner command unit 122 output angles instruction; section sampling time acquisition in every interval is by this control unit 156 respectively; 156 '; 156 " by its corresponding air speed detection unit 155,155 ', 155 " air speed value of the current sampling time point that is detected; and calculate the mean wind velocity value of this wind energy turbine set 1 according to this, and exported.And this communication module 11 connects respectively this wind energy conversion system 15 by this transmission interface 14,15 ', 15 " this control unit 156; 156 '; 156 ", in order to transmit angle instruction that this corner command unit 122 exported respectively this wind energy conversion system 15 to this wind energy turbine set 1,15 ', 15 " control unit 156; 156 '; 156 ", so that this control unit 156 respectively, 156 ', 156 " order about respectively this wind energy conversion system 15; 15 '; 15 " this driving mechanism 152,152 ', 152 " motion; when the contraposition program, drive this impeller 151; 151 '; 151 " on blade move to initial position, promptly enter conventional run-in synchronism program afterwards, the rotor angular position value of being calculated at every this computing unit 125 of an interval section parallel convey sampling time is to each wind energy conversion system 15 of this wind energy turbine set 1,15 ', 15 " control unit 156; 156 '; 156 ", with by this control unit 156 respectively, 156 ', 156 " further this rotor angular position value is transmitted the power conversion unit 154 of giving correspondence; 154 '; 154 ", to make this power conversion unit 154 (or 154 ', or 154 ") according to this rotor angular position value, corresponding this wind energy conversion system 15 of control (or 15 '; or 15 ") impeller 151 (or 151 ', or 151 ") all carry out run-in synchronism from this initial position.Preferably, this initial position is meant on this wind energy turbine set 1 respectively this wind energy conversion system 15,15 ', 15 " impeller on blade all be positioned on the same position, but not as limit.In other embodiments, this initial position also can be designed on this wind energy turbine set 1 respectively this wind energy conversion system 15,15 ', 15 " impeller on blade between the predetermined angle of being separated by.
In sum, wind power station control system provided by the present invention and wind energy turbine set, wherein, this wind energy turbine set has this wind power station control system, and this wind power station control system is by being provided with the corresponding incidence relation that the unit is provided with wind speed and rotor speed, and by sampling unit after corner command unit output angle instruction, an every interval section sampling time captures the current air speed value of each wind energy conversion system by transmission interface from the control unit of each wind energy conversion system, and calculate the mean wind velocity value of this wind energy turbine set according to this, then, from this corresponding incidence relation of the set wind speed in unit and rotor speed is set by searching the unit, hunt out and the corresponding rotor speed value of the current mean wind velocity value that captures, calculate the rotor angular position value of each wind energy conversion system according to this for computing unit at current sampling time point, then, transmit angle instruction that this corner command unit exported control unit by communication module by this transmission interface to each wind energy conversion system of this wind energy turbine set, so that respectively this control unit orders about this driving mechanism motion of this wind energy conversion system respectively and the blade that drives on this impeller moves to initial position, the rotor angular position value of being calculated at every this computing unit of an interval section parallel convey sampling time is to the control unit of each wind energy conversion system of this wind energy turbine set afterwards, further this rotor angular position value is sent to corresponding power conversion unit by this control unit respectively, to make this power conversion unit according to this rotor angular position value, the impeller of corresponding this wind energy conversion system of control all carries out run-in synchronism from this initial position.Thus, need not to change existing wind energy conversion system hardware device, i.e. all wind energy conversion system run-in synchronisms of this wind energy turbine set of may command, to improve the visual impact that wind energy turbine set causes, compared with prior art, promptly effectively overcome disadvantages of the prior art, and the tool high industrial utilization.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, the scope of the present invention should be listed as claims.
Claims (21)
1. a wind power station control system is applied to have the wind energy turbine set of a plurality of wind energy conversion systems, and wherein, respectively this wind energy conversion system is provided with the impeller that comprises a plurality of blades, it is characterized in that, this wind power station control system comprises at least:
Communication module is in order to carry out exchanges data with this wind energy conversion system respectively; And
Puocessing module, the foundation respectively air speed data of this wind energy conversion system calculates the mean wind velocity value, and according to the corresponding incidence relation of the default wind speed of maximum power point tracking principle with rotor speed, to calculate the common rotating speed of wind turbine impeller, and when this wind energy turbine set turns round for the first time, produce initial corner instruction earlier and be sent to respectively this wind energy conversion system by this communication module, the impeller that makes this wind energy conversion system is respectively carried out the contraposition program and the blade that orders about on the impeller of this wind energy conversion system respectively moves to initial position, afterwards, an every interval section sampling time captures this mean wind velocity value, and the calculation process rule of arranging in pairs or groups according to this, to calculate the rotor angular position value of this common rotating speed, and be sent to respectively this wind energy conversion system by this communication module, the impeller of this wind energy conversion system all carries out run-in synchronism according to this rotor angular position value from this initial position to order about respectively, wherein, the calculation process rule with this rotor speed value and this sampling time section product add the rotor angular position value that this preceding primary sample time point is calculated, to obtain respectively this wind energy conversion system in the rotor angular position value of current sampling time point.
2. wind power station control system according to claim 1, it is characterized in that, also comprise storage module, in order to storing the corresponding incidence relation of the set wind speed of this puocessing module and rotor speed, and this puocessing module is in the rotor angular position value that sampling time point calculated of this wind energy conversion system respectively.
3. wind power station control system according to claim 1 is characterized in that, this puocessing module also comprises:
The unit is set, the corresponding incidence relation of wind speed and rotor speed is set according to this maximum power point tracking principle;
The corner command unit is in order to provide the output angle instruction;
Sampling unit, in order to after the instruction of this corner instruction module output angle, section sampling time acquisition in every interval is by the air speed value of the current sampling time point of this wind energy conversion system respectively, and calculates the mean wind velocity value of this wind energy turbine set according to this, and exported;
Search the unit, in order to receive the mean wind velocity value of this wind energy turbine set that this sampling unit captures, and arrange in pairs or groups according to this that this is provided with the corresponding incidence relation of the set wind speed in unit and rotor speed, hunt out and the corresponding rotor speed value of the current mean wind velocity value that captures, and exported; And
Computing unit, in order to receive the rotor speed value exported this search unit and section sampling time of this sampling unit, and the calculation process rule of arranging in pairs or groups according to this, calculate the rotor angular position value of each wind energy conversion system at current sampling time point, wherein, this computing unit when calculating the rotor angular position value of this wind energy conversion system respectively at current sampling time point, the rotor angular position value of also arranging in pairs or groups and being calculated in preceding primary sample time point.
4. wind power station control system according to claim 1 is characterized in that, this computing unit is when first calculating, and this rotor angular position value is common preset initial value.
5. wind power station control system according to claim 3 is characterized in that, this is provided with the unit also according to wind energy turbine set landforms characteristic and the auxiliary corresponding incidence relation that wind speed and rotor speed are set of this feature of wind machine respectively.
6. wind power station control system according to claim 1 is characterized in that, this initial position is meant on this wind energy turbine set that the blade on the impeller of this wind energy conversion system respectively all is positioned on the same position.
7. wind power station control system according to claim 1 is characterized in that, this initial position is meant on this wind energy turbine set the predetermined angle of being separated by between the blade on the impeller of this wind energy conversion system respectively.
8. according to claim 1 or 6 or 7 described wind power station control systems, it is characterized in that respectively the blade of the impeller of this wind energy conversion system has part or whole application or pattern inequality.
9. a wind energy turbine set is characterized in that, comprises at least:
A plurality of wind energy conversion systems, wind power station control system and the parallel respectively transmission interface of this wind energy conversion system and this wind power station control system that connects, respectively this wind energy conversion system is provided with the impeller that comprises a plurality of blades, and wherein, this wind power station control system comprises at least:
Communication module is in order to carry out exchanges data by this transmission interface and this wind energy conversion system respectively; And
Puocessing module, the foundation respectively air speed data of this wind energy conversion system calculates the mean wind velocity value, and according to the corresponding incidence relation of the default wind speed of maximum power point tracking principle with rotor speed, to calculate the common rotating speed of wind turbine impeller, and when this wind energy turbine set turns round for the first time, produce initial corner instruction earlier and be sent to respectively this wind energy conversion system by this communication module, the impeller that makes this wind energy conversion system is respectively carried out the contraposition program and the blade that orders about on the impeller of this wind energy conversion system respectively moves to initial position, afterwards, capture this mean wind velocity value according to an every interval section sampling time, and the calculation process rule of arranging in pairs or groups according to this, to calculate the rotor angular position value of this common rotating speed, and be sent to respectively this wind energy conversion system by this communication module, the impeller of this wind energy conversion system all carries out run-in synchronism according to this rotor angular position value from initial position to order about respectively, wherein, the calculation process rule with this rotor speed value and this sampling time section product add the rotor angular position value that this preceding primary sample time point is calculated, to obtain respectively this wind energy conversion system in the rotor angular position value of current sampling time point.
10. wind energy turbine set according to claim 9 is characterized in that, respectively this wind energy conversion system also comprises:
Generator unit;
Driving mechanism, connect this generator unit and this impeller respectively, drive this driving mechanism motion and impel this generator unit generating with rotation by impeller, and the running of corresponding this impeller of adjustment to pass through this driving mechanism when torque, rotating speed and the output power of this generator unit change;
Power conversion unit, electrically connect this generator unit, in order to torque, rotating speed and the output power of controlling this generator unit, and the variation of torque, rotating speed and output power by this generator unit control and the running of this generator unit by the impeller of this driving mechanism coupling indirectly;
The wind speed detection unit is in order to detect the air speed value that this current present position of wind energy conversion system is received; And
Control unit electrically connects with this driving mechanism, this wind speed detection unit and this power conversion unit respectively, and connects this wind power station control system by this transmission interface.
11. wind energy turbine set according to claim 10 is characterized in that, this generator unit is a generator.
12. wind energy turbine set according to claim 10 is characterized in that, this power conversion unit is an electric power converter.
13. wind energy turbine set according to claim 10 is characterized in that, this wind speed detection unit is a recording anemometer.
14. wind energy turbine set according to claim 9, it is characterized in that, this wind power station control system also comprises storage module, in order to storing the corresponding incidence relation of the set wind speed of this puocessing module and rotor speed, and this puocessing module is in the rotor angular position value that sampling time point calculated of this wind energy conversion system respectively.
15. wind energy turbine set according to claim 10 is characterized in that, the puocessing module of this wind power station control system also comprises:
The unit is set, the corresponding incidence relation of wind speed and rotor speed is set according to this maximum power point tracking principle;
The corner command unit is in order to provide the output angle instruction;
Sampling unit, connect respectively this control unit of this wind energy conversion system by this communication module, in order to after this corner command unit output angle instruction, the air speed value of the current sampling time point that section sampling time acquisition in every interval is detected by its corresponding air speed detection unit by this control unit respectively, and calculate the mean wind velocity value of this wind energy turbine set according to this, and exported;
Search the unit, in order to receive the mean wind velocity value of this wind energy turbine set that this sampling unit captures, and arrange in pairs or groups according to this that this is provided with the corresponding incidence relation of the set wind speed in unit and rotor speed, hunt out and the corresponding rotor speed value of the current mean wind velocity value that captures; And
Computing unit, in order to receive the rotor speed value exported this search unit and should sampling time section, and the calculation process rule of arranging in pairs or groups according to this, calculate the rotor angular position value of each wind energy conversion system at current sampling time point, wherein, this computing unit when calculating the rotor angular position value of this wind energy conversion system respectively at current sampling time point, the rotor angular position value of also arranging in pairs or groups and being calculated in preceding primary sample time point.
16. wind energy turbine set according to claim 9 is characterized in that, this computing unit is when first calculating, and the rotor angular position value is common preset initial value.
17. wind energy turbine set according to claim 15 is characterized in that, this is provided with the unit also according to wind energy turbine set landforms characteristic and the auxiliary corresponding incidence relation that wind speed and rotor speed are set of this feature of wind machine respectively.
18. wind energy turbine set according to claim 9 is characterized in that, this initial position is meant on this wind energy turbine set that the blade on the impeller of this wind energy conversion system respectively all is positioned on the same position.
19. wind energy turbine set according to claim 9 is characterized in that, this initial position is meant on this wind energy turbine set the predetermined angle of being separated by between the blade on the impeller of this wind energy conversion system respectively.
20., it is characterized in that respectively the blade of the impeller of this wind energy conversion system has part or whole application or pattern inequality according to claim 9 or 18 or 19 described wind energy turbine set.
21. wind energy turbine set according to claim 9 is characterized in that, this transmission interface is one of them of Field bus and Ethernet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101270577A CN101749183B (en) | 2008-12-12 | 2009-03-23 | Wind power station control system and wind power station |
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| CN200810172755 | 2008-12-12 | ||
| CN200810172755.4 | 2008-12-12 | ||
| CN2009101270577A CN101749183B (en) | 2008-12-12 | 2009-03-23 | Wind power station control system and wind power station |
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| CN101749183A CN101749183A (en) | 2010-06-23 |
| CN101749183B true CN101749183B (en) | 2011-12-14 |
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| US10012213B2 (en) * | 2016-02-04 | 2018-07-03 | General Electric Company | System and method for upgrading multivendor wind turbines |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19620906C2 (en) * | 1996-05-24 | 2000-02-10 | Siemens Ag | Wind farm |
| WO2001097359A1 (en) * | 2000-06-14 | 2001-12-20 | Ulrik Krabbe | A method and a device for stabilizing power generated by groups of generators |
| US6724097B1 (en) * | 1999-10-06 | 2004-04-20 | Aloys Wobben | Method for operating a wind farm |
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2009
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19620906C2 (en) * | 1996-05-24 | 2000-02-10 | Siemens Ag | Wind farm |
| US6724097B1 (en) * | 1999-10-06 | 2004-04-20 | Aloys Wobben | Method for operating a wind farm |
| WO2001097359A1 (en) * | 2000-06-14 | 2001-12-20 | Ulrik Krabbe | A method and a device for stabilizing power generated by groups of generators |
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| CN101749183A (en) | 2010-06-23 |
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