WO2010137710A1 - 風力発電制御装置および風力発電制御方法 - Google Patents
風力発電制御装置および風力発電制御方法 Download PDFInfo
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- WO2010137710A1 WO2010137710A1 PCT/JP2010/059149 JP2010059149W WO2010137710A1 WO 2010137710 A1 WO2010137710 A1 WO 2010137710A1 JP 2010059149 W JP2010059149 W JP 2010059149W WO 2010137710 A1 WO2010137710 A1 WO 2010137710A1
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- wind
- wind power
- output
- power generator
- rotational speed
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- 238000010248 power generation Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 16
- 238000004364 calculation method Methods 0.000 claims description 8
- 230000015654 memory Effects 0.000 claims description 8
- 230000006698 induction Effects 0.000 description 14
- 230000006870 function Effects 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000004088 simulation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000012888 cubic function Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 206010016275 Fear Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0272—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor by measures acting on the electrical generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/006—Means for protecting the generator by using control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/08—Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/44—Control of frequency and voltage in predetermined relation, e.g. constant ratio
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
- F05B2270/103—Purpose of the control system to affect the output of the engine
- F05B2270/1033—Power (if explicitly mentioned)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/304—Spool rotational speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/0085—Partially controlled bridges
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
-
- 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
-
- 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
- Y02E10/76—Power conversion electric or electronic aspects
Definitions
- the present invention relates to a wind power generation control device that controls a wind power generator that converts wind power into electric power, and a wind power generation control method that controls a wind power generator.
- a wind power generator that converts wind power into electric power attracts attention as a power generation device that does not emit pollution, and has been put to practical use.
- small wind power generators with rated power of several kilowatts (kW) are used as power supplies for lighting equipment in companies, schools, general homes, etc., as power supplies for greenhouse heaters, measuring devices such as temperature and humidity, etc.
- it is used as a power source for street lights such as shopping streets and trunk roads.
- control of the generated power is performed by any one of the generated voltage, the generated current, the rotational speed, or a combination thereof.
- the rotational speed of the wind turbine is detected, and when the detected rotational speed exceeds a preset reference rotational speed, the ratio (V) between the input voltage (V in ) and the output voltage (V out ) of the power conversion circuit
- V the ratio between the input voltage (V in ) and the output voltage (V out ) of the power conversion circuit
- the present invention has been made in view of the above-described actual situation, and provides a wind power generation control device for controlling a wind power generator capable of efficiently obtaining an optimum amount of power corresponding to the wind speed in a relatively low wind speed region. And a wind power generation control method of controlling the wind power generator.
- the present invention adopts the following configuration in order to solve the above-mentioned problems.
- the wind power generation control device of the present invention is a wind power generation control device for controlling a wind power generator using a wind turbine rotor having a fixed pitch angle, the wind power generator Current detection means for detecting an output current value output from the wind turbine, voltage detection means for detecting an output voltage value output from the wind power generator, rotational speed detection means for detecting a rotational speed of the wind turbine rotor, and A wing aerodynamic characteristic storage means for storing in advance a wing aerodynamic characteristic which is a characteristic inherent to a rotary wing, a current output current value detected by the current detection means, a current output voltage value detected by the voltage detection means and Based on the current rotational speed detected by the rotational speed detecting means, the electric power calculating means for calculating the output power at the current rotational speed, and the electric power calculating means Based on the wing aerodynamic characteristics stored in the output power and the blade aerodynamic characteristics storage means are characterized by comprising a control unit for controlling the wind power generator.
- the wind turbine generator may be configured such that the control unit matches the output power calculated by the power calculation unit with the blade aerodynamic characteristics stored in the blade aerodynamic characteristics storage unit. It is desirable to control
- control means may control the wind turbine generator within a range of rotational speeds in a predetermined wind speed range, wherein the rotational speed detected by the rotational speed detecting means is desirable.
- the predetermined wind velocity range is a wind velocity range of approximately 10 (m / s) or less.
- control means when the control means detects that the current rotational speed detected by the rotational speed detection means exceeds a maximum rotational speed corresponding to the maximum wind speed in the predetermined wind speed range, It is desirable to control the wind power generator so that the maximum rotational speed is not exceeded.
- the wing aerodynamic characteristic storage means store in advance a wing aerodynamic characteristic indicating a relationship between a rotational speed of the wind turbine rotor and a torque generated by the wind generator. .
- control means controls the wind power generator by directly short-circuiting an armature coil of the wind power generator at a predetermined duty cycle.
- control means controls the wind power generator by intermittently shorting the armature coil.
- the wind power generation control method of the present invention is a wind power generation control method for controlling a wind power generator using a wind turbine rotor having a fixed pitch angle, the wind power generator Detects an output current value output from the wind turbine generator, detects an output voltage value output from the wind turbine generator, detects a rotational speed of the wind turbine rotor blade, and detects the detected current output current value, the detected current time
- the output power at the current rotational speed is calculated based on the output voltage value of the current and the detected current rotational speed, and the calculated output power and the wind turbine rotor specific to the wind turbine rotor stored in advance in the memory
- the wind power generator is controlled to match the calculated output power with the wing aerodynamic characteristics based on the wing aerodynamic characteristics which is a characteristic.
- FIG. 1 It is a block diagram showing a wind power generation control device to which the present invention is applied. It is a figure which shows the relationship between the rotational speed of a windmill rotational blade, the electric power which a wind power generator outputs, and the electricity supply rate added to a wind power generator. It is a flowchart which shows the flow of the wind-power-generation control processing performed in the wind-power-generation control apparatus to which this invention is applied. It is a figure which shows the relationship between the wind speed, the electric power which a wind-powered generator outputs, and the rotational speed of a windmill rotational blade.
- FIG. 1 is a block diagram showing a wind power generation control device to which the present invention is applied.
- a wind power generation control device 1 to which the present invention is applied constitutes a wind power generation system that generates power efficiently by controlling a wind power generator 2.
- the wind power generator 2 includes permanent magnets 21 and three-phase windings 22 and converts alternating current generated by rotation of the wind turbine rotor 20 having a fixed pitch angle into direct current by the rectifier 23. Then, the load 25 connected to the storage battery 24 is supplied.
- the pitch angle of the wind turbine rotor 20 is fixed, its structure is relatively simple and failure as compared with a type in which the pitch angle can be changed or a type in which the wings are inclinable. Also, it is easy to reduce the size and weight.
- the wind power generation control device 1 includes a current A / D conversion unit 11, a voltage A / D conversion unit 12, a rotation speed counting unit 13, an rpm / power calculation unit 14, a counting control unit 15, and a PWM modulation unit 16.
- the current A / D conversion unit 11 detects an output current value output from the wind power generator 2 through a current detection circuit 26, and converts an analog value into a digital value.
- the voltage A / D conversion unit 12 detects an output voltage value output from the wind power generator 2 via a voltage detection circuit 27 and converts an analog value into a digital value.
- the rotational speed counting unit 13 detects and acquires the rotational speed of the wind turbine rotor 20 via the rotational speed detection circuit 28.
- the rpm / power calculation unit 14 is based on the rotational speed acquired by the rotational speed counting unit 13 and the wing aerodynamic characteristic which is a characteristic inherent to the predetermined wind turbine rotor 20, the theory of the wind power generator 2 Calculate the output value.
- WP theoretical output value, x: number of rotations, a, b, c, d: Coefficient equation
- WP a 1 ⁇ x 3 + b 1 ⁇ x 2 + c 1 ⁇ x + d 1
- WP theoretical output value, x: number of rotations, a 1 , b 1 , c 1 , d 1 :
- a cubic simulation equation such as a coefficient
- multi-order simulation formula is a formula that is schematicallyized based on theoretical characteristic calculation formulas as shown below.
- the power generation output P (W) of the wind power generator should be obtained as in Equation 1 below according to blade momentum theory Can do.
- the power coefficient C P can be obtained by the following equation 2.
- r distance from the center of the rotor to the j axis of the blade
- a Induction coefficient (axial component)
- a ' induction coefficient (tangential component) It becomes.
- Each variable for equation 2 above is a function of the blade position r, and lift coefficients and efficacy coefficients are obtained from the airfoil data used for the blade at said position r.
- induction coefficient a and the induction coefficient a ′ are given as follows by an algebraic equation that describes the dynamical system of the flow field with ⁇ as a variable in wing element movement theory.
- Step 3 From the velocity triangle at radial position r
- Step 5 Determine C L ( ⁇ ) and C D ( ⁇ ) from the airfoil data.
- Step 6 Calculate C N and C F according to Equation 5 and Equation 6 above.
- Step 7 The new induction coefficient a and the induction coefficient a ′ are calculated from the above Equation 3 and Equation 4.
- Step 8 Repeat the above steps until the induction coefficient a and the induction coefficient a 'converge within a predetermined error range.
- Step 9 When the induction coefficient a and the induction coefficient a ′ converge, the output performance is obtained by the above equation 1.
- the above integration is generally by numerical integration.
- the counting control unit 15 outputs the output power of the wind power generator 2 at the present time based on the output current value converted by the current A / D conversion unit 11 and the output voltage value converted by the voltage A / D conversion unit 12.
- the rectifier 23 calculates a value so that the power corresponding to the theoretical output value is output based on the calculated current output power value and the theoretical output value calculated by the rpm / power calculation unit 14.
- the duty (energization ratio) of the switching circuit provided is calculated.
- the PWM modulation unit 16 performs pulse width modulation (PWM: Pulse Width) so that the wind power generator 2 outputs power corresponding to the theoretical output value based on the duty calculated by the counting control unit 15.
- PWM Pulse Width
- the rectifier 23 is controlled via the driver 29.
- the PWM modulation unit 16 may control the wind power generator 2 by directly shorting the armature coil of the wind power generator 2 at a predetermined duty cycle. At this time, the PWM modulation unit 16 can also control the wind power generator 2 by intermittently shorting the armature coil.
- the wind power generator control device 1 controls the wind power generator 2 based on the output power output from the wind power generator 2, that is, the output voltage and the output current,
- the wind power generator 2 can be controlled without being affected by such voltage.
- FIG. 2 is a diagram showing the relationship between the rotational speed of the wind turbine rotor and the power output from the wind power generator and the energization ratio applied to the wind power generator.
- the wind power generator 2 controlled by such a wind power generation control device 1 shows a relationship as shown in FIG. That is, when the rotational speed of the wind turbine rotor blade 20 increases, the power output from the wind power generator 2 generally increases in a multi-order function like a round point graphed in FIG. Do not mean.
- FIG. 3 is a flowchart showing a flow of wind power generation control processing executed in the wind power generation control device to which the present invention is applied.
- step S303 the rotational speed of the wind turbine rotor 20 is detected and acquired.
- step S304 it is determined whether the rotational speed acquired in step S303 exceeds a predetermined value.
- a predetermined value for example, a rotational speed 1000 (rpm) corresponding to a wind speed of 10 (m / s) can be used.
- step S304 If it is determined that the rotational speed does not exceed the predetermined value, in other words, if the detected rotational speed is within the range of the rotational speed in the predetermined wind speed range (step S304: No), the step is performed in step S305.
- step S306 it is determined whether the output power value calculated in step S302 exceeds the theoretical power value calculated in step S305.
- step S306: Yes If it is determined that the output power value exceeds the theoretical power value (step S306: Yes), the rectifier is determined based on the duty calculated to reduce the power output by the wind power generator 2 in step S307. By controlling 23, the load of the wind power generator 2 is reduced. On the other hand, when it is determined that the output power value does not exceed the theoretical power value (step S306: No), based on the duty calculated to increase the power output by the wind power generator 2 in step S308. By controlling the rectifier 23, the load of the wind power generator 2 is increased.
- step S304 If it is determined in step S304 that the obtained rotational speed exceeds the predetermined value, in other words, if the detected rotational speed exceeds the range of the rotational speed in the predetermined wind speed region (step S304: Yes) ) Sets the reference rotation speed, for example, 1000 (rpm) in step S309.
- step S310 it is determined whether the reference rotational speed set in step S309 exceeds the rotational speed detected in step S303.
- step S310: Yes If it is determined that the reference rotational speed exceeds the detected rotational speed (step S310: Yes), the above-mentioned duty is calculated based on the duty calculated to reduce the power output by the wind power generator 2 in step S311. By controlling the rectifier 23, the load on the wind power generator 2 is reduced. On the other hand, when it is determined that the reference rotational speed does not exceed the detected rotational speed (step S310: No), based on the duty calculated to increase the power output by the wind power generator 2 in step S312. The load of the wind power generator 2 is increased by controlling the rectifier 23.
- FIG. 4 is a diagram showing the relationship between the wind speed, the power output from the wind power generator, and the rotational speed of the wind turbine rotor.
- the wind power generator 2 can perform seamless power generation in the area of wind speed 2 (m / s) or more. It can continue to be realized. Then, an output of maximum power 2300 (W) is realized at a wind speed of 20 (m / s), and thereafter, transition to a slow and gentle curve while increasing the output as the wind intensity increases.
- This curve is a curve represented by the above-described multi-order simulation.
- the power of a wind power generator increases in proportion to the cube of the wind speed, but in practice, it is general to limit the power by some method in order to prevent destruction of the wind turbine rotor, noise and the like.
- the wind power generation control device 1 to which the present invention is applied has an effect of enhancing the power generation efficiency in the low wind speed region of 2 to 10 (m / s).
- the wind power generation control device 1 to which the present invention is applied controls the wind power generator 2 based on the output power output from the wind power generator 2, that is, the output voltage and the output current, the load 25
- the wind power generator 2 can be controlled without being affected by the voltage applied to it.
- wind power generation control device to which the present invention is applied is not limited to the above embodiment as long as its function is executed, and a system consisting of a plurality of devices even if it is a single device. It goes without saying that even an integrated apparatus may be a system in which processing is performed via a network such as a LAN or WAN.
- the present invention can also be realized by a system including a CPU connected to a bus, memories of ROM and RAM, an input device, an output device, an external recording device, a medium drive device, and a network connection device. That is, the ROM or RAM memory storing the software program for realizing the system of the embodiment described above, the external recording device, and the portable recording medium are supplied to the wind power generation control device, and the computer of the wind power generation control device It is needless to say that is achieved by reading and executing a program.
- the program itself read out from the portable recording medium realizes the novel function of the present invention
- the portable recording medium or the like recording the program constitutes the present invention
- portable recording media for supplying the program for example, flexible disks, hard disks, optical disks, magneto-optical disks, CD-ROMs, CD-Rs, DVD-ROMs, DVD-RAMs, magnetic tapes, non-volatile memory cards
- a network connection device in other words, a communication line
- ROM card electronic mail, personal computer communication, or the like.
- a program read from a portable recording medium or a program (data) provided by a program (data) provider can be stored in a memory provided in a function expansion board inserted in the computer or in a function expansion unit connected to the computer.
- the CPU provided in the function expansion board or the function expansion unit performs part or all of the actual processing based on the instruction of the program, and the functions of the above-described embodiment are realized by the processing. obtain.
- the present invention obtains the theoretical output value at the rotational speed from theoretical characteristics of the wind turbine prepared in advance so as to maximize the output in a relatively low wind speed region, and obtains the maximum amount of generated power corresponding to the theoretical output value.
- the duty (energization ratio) of the switching circuit as described above, it is possible to obtain higher power generation efficiency while using a fixed blade.
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Abstract
Description
ステップ1:基本パラメータ(風速U、
ステップ4:α=φ-θにより、迎え角αを求める。
ステップ5:翼型データからCL(α)およびCD(α)を決定する。
ステップ6:上記式5および式6により、CNおよびCFを算出する。
ステップ7:上記式3および式4から、新しい誘導係数aおよび誘導係数a´を算出する。
ステップ8:誘導係数aおよび誘導係数a´が所定の誤差範囲内に収束するまで上記ステップを繰り返す。
ステップ9:誘導係数aおよび誘導係数a´が収束したら、上記式1により出力性能を求める。なお、上記積分は一般的には数値積分による。
文献:M.O.L.Hansen著、「Aerodynamics of Wind Turbines」(EARTHSCAN発行)
また、上記CnおよびCpを補正する方法としては、上述した数式に限らず、本発明の要旨を逸脱しない範囲内で変形した数式を用いても良いし、上述した翼素運動量理論に限らず、本発明の要旨を逸脱しない範囲内で他の理論を利用しても良い。
Claims (9)
- ピッチ角が固定である風車回転翼を用いた風力発電機を制御する風力発電制御装置であって、
前記風力発電機が出力する出力電流値を検出する電流検出手段と、
前記風力発電機が出力する出力電圧値を検出する電圧検出手段と、
前記風車回転翼の回転速度を検出する回転速度検出手段と、
前記風車回転翼に固有の特性である翼空力特性を予め格納する翼空力特性格納手段と、
前記電流検出手段によって検出された現時点の出力電流値、前記電圧検出手段によって検出された現時点の出力電圧値および前記回転速度検出手段によって検出された現時点の回転速度に基づいて、現時点での回転速度における出力電力を算出する電力算出手段と、
前記電力算出手段によって算出された出力電力および前記翼空力特性格納手段に格納されている翼空力特性に基づいて、前記風力発電機を制御する制御手段と、
を備えることを特徴とする風力発電制御装置。 - 前記制御手段は、前記電力算出手段によって算出される出力電力を前記翼空力特性格納手段に格納されている翼空力特性に合致させるように前記風力発電機を制御することを特徴とする請求項1に記載の風力発電制御装置。
- 前記制御手段は、前記回転速度検出手段によって検出される回転速度が所定の風速域での回転速度の範囲内において、前記風力発電機を制御することを特徴とする請求項2に記載の風力発電制御装置。
- 前記所定の風速域は、略10(m/s)以下の風速域であることを特徴とする請求項3に記載の風力発電制御装置。
- 前記制御手段は、前記回転速度検出手段によって検出された現時点の回転速度が前記所定の風速域の最大風速に対応する最大回転速度を超えた場合、前記最大回転速度を超えないように前記風力発電機を制御することを特徴とする請求項3に記載の風力発電制御装置。
- 前記翼空力特性格納手段は、前記風車回転翼の回転速度と前記風力発電機が発生するトルクとの関係を示す翼空力特性を予め格納することを特徴とする請求項1に記載の風力発電制御装置。
- 前記制御手段は、前記風力発電機が有する電機子コイルを所定のデューティーサイクルで直接短絡することにより前記風力発電機を制御することを特徴とする請求項1に記載の風力発電制御装置。
- 前記制御手段は、前記電機子コイルを断続的に短絡することにより前記風力発電機を制御することを特徴とする請求項7に記載の風力発電制御装置。
- ピッチ角が固定である風車回転翼を用いた風力発電機を制御する風力発電制御方法であって、
前記風力発電機が出力する出力電流値を検出し、
前記風力発電機が出力する出力電圧値を検出し、
前記風車回転翼の回転速度を検出し、
前記検出された現時点の出力電流値、前記検出された現時点の出力電圧値および前記検出された現時点の回転速度に基づいて、現時点での回転速度における出力電力を算出し、
前記算出された出力電力および予めメモリに格納されている前記風車回転翼に固有の特性である翼空力特性に基づいて、算出される出力電力を前記翼空力特性に合致させるように前記風力発電機を制御する、
ことを特徴とする風力発電制御方法。
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ES10780664T ES2704841T3 (es) | 2009-05-28 | 2010-05-28 | Dispositivo de control de generación de energía eólica y método de control de generación de energía eólica |
AU2010252987A AU2010252987B2 (en) | 2009-05-28 | 2010-05-28 | Wind power generation control device and wind power generation control method |
CN201080021865.6A CN102428269B (zh) | 2009-05-28 | 2010-05-28 | 风力发电控制装置和风力发电控制方法 |
EP10780664.8A EP2436920B1 (en) | 2009-05-28 | 2010-05-28 | Wind power generation control device and wind power generation control method |
DK10780664.8T DK2436920T3 (en) | 2009-05-28 | 2010-05-28 | Device and method for controlling wind energy generation |
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JP5469969B2 (ja) | 2009-09-16 | 2014-04-16 | ゼファー株式会社 | 風力発電装置 |
CN104011987B (zh) * | 2011-12-19 | 2016-03-30 | 安辛可公司 | 用于多相交流电机的低速控制的系统和方法 |
ITVR20120178A1 (it) * | 2012-09-04 | 2014-03-05 | Penta Systems S R L | Turbina e sistema di controllo della sovra-potenza di detta turbina |
US10054108B2 (en) | 2014-10-10 | 2018-08-21 | General Electric Company | Wind turbine system and method for controlling a wind turbine system by power monitoring |
CN106907295B (zh) * | 2015-12-22 | 2019-10-18 | 通用电气公司 | 风力发电系统及其控制方法 |
US10352298B2 (en) | 2016-12-21 | 2019-07-16 | General Electric Company | Wind generation system and controlling method thereof |
CN108933500B (zh) * | 2017-05-23 | 2020-06-02 | 东洋合成股份有限公司 | 可低转速高电能的风力发电装置 |
CN113090453B (zh) * | 2019-12-23 | 2023-03-03 | 新疆金风科技股份有限公司 | 风力发电机组的控制方法、装置和风力发电机组 |
JP2022108824A (ja) * | 2021-01-14 | 2022-07-27 | Ntn株式会社 | ブレーキ制御装置 |
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CN102428269A (zh) | 2012-04-25 |
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EP2436920A4 (en) | 2014-05-21 |
EP2436920A1 (en) | 2012-04-04 |
DK2436920T3 (en) | 2019-02-25 |
AU2010252987B2 (en) | 2014-03-20 |
CN102428269B (zh) | 2014-06-11 |
US20120061966A1 (en) | 2012-03-15 |
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AU2010252987A1 (en) | 2012-01-12 |
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