KR20140052447A - Method for control of wind turbine generation cut-out wind speed area - Google Patents

Method for control of wind turbine generation cut-out wind speed area Download PDF

Info

Publication number
KR20140052447A
KR20140052447A KR1020120118546A KR20120118546A KR20140052447A KR 20140052447 A KR20140052447 A KR 20140052447A KR 1020120118546 A KR1020120118546 A KR 1020120118546A KR 20120118546 A KR20120118546 A KR 20120118546A KR 20140052447 A KR20140052447 A KR 20140052447A
Authority
KR
South Korea
Prior art keywords
wind
wind speed
generator
power
wind power
Prior art date
Application number
KR1020120118546A
Other languages
Korean (ko)
Inventor
리위룽
이종문
이창수
김해솔
이경우
백건
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020120118546A priority Critical patent/KR20140052447A/en
Publication of KR20140052447A publication Critical patent/KR20140052447A/en

Links

Images

Classifications

    • 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
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
    • 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
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • 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
    • F03D7/028—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
    • 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
    • F05B2270/32—Wind speeds
    • 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
    • F05B2270/327—Rotor or generator speeds
    • 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
    • F05B2270/328—Blade pitch angle
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

The present invention relates to a method to control a generation of wind power in a cut-out wind speed area and, more specifically, to a method to control the generation of wind power in a cut-out wind speed area as the method for the generation of wind power of a wind power generator, which is characterized by controlling the wind power generator, to constantly generate electricity by a central control device when the average wind speed signals exceeding an existing cut-out wind speed are sensed by the central control device of the wind power generator. The present invention maintains the operation of the wind power generator by controlling the rotational speed and the output to be reduced in order to prevent the wind power generator from stopping when reaching the cut-out wind speed area and then continuously produce electricity; thereby producing more electricity when compared to an existing hysteresis control method.

Description

정지풍속 구간에서의 풍력발전 제어 방법{Method for control of wind turbine generation cut-out wind speed area}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wind turbine generator,

본 발명은 풍력발전기의 전력생산량 향상 방법에 관한 것으로서, 특히 풍력발전의 정지풍속구간에 도달하였을 때, 히스테리시스 컨트롤(Hysteresis control)방식보다 파워 디센딩(Power descending)방식을 통해 풍력발전기를 제어함으로써, 풍력발전 상태를 유지시켜 지속적으로 전력을 생산할 수 있는 정지풍속 구간에서의 풍력발전 제어 방법에 관한 것이다.The present invention relates to a method for improving the power generation amount of a wind turbine generator, and more particularly, to a wind turbine generator that controls a wind turbine generator through a power descending method rather than a hysteresis control method, The present invention relates to a wind power generation control method in a stationary wind speed section in which a wind power generation state can be maintained to continuously generate electric power.

풍력발전이란 바람에너지를 풍력 터빈 등의 장치를 이용하여 기계적 에너지로 변환시키고, 이 에너지를 이용하여 발전기를 돌려 전기를 생산하는 것을 말한다.Wind power refers to the conversion of wind energy into mechanical energy by means of wind turbines and other devices, and the generation of electricity by using this energy.

풍력발전기는 이론상으로는 바람에너지의 최대 약 59.3% 까지 전기에너지로 변환시킬 수 있지만, 현실적으로 날개의 형상, 기계적 마찰 및 발전기의 효율 등에 따른 손실요인이 존재하기 때문에 실용상의 효율은 약 20 내지 40% 수준에 머물고 있다.Wind turbines can theoretically be converted to electrical energy up to about 59.3% of wind energy, but practically efficiency is about 20 to 40% due to the fact that there are losses due to blade shape, mechanical friction and efficiency of generator. .

풍력은 재생에너지의 일종으로 자원이 풍부하고 끊임없이 재생되며 광범위한 지역에 분포되어 있고 깨끗하며, 운전 중 온실가스의 배출이 없다는 점에서 화석에너지 고갈 시에 대비한 유망한 대체 에너지원으로서 각광받는 에너지이다.Wind power is a kind of renewable energy, which is abundant in resources, is constantly being regenerated, distributed in a wide area, clean, and is a promising alternative energy source for fossil energy depletion because there is no greenhouse gas emission during operation.

또한, 풍력발전은 태양계의 자연에너지인 바람을 이용하여 발전하기 때문에 바람이 불 때에는 수요에 관계없이 반드시 전력을 생산한다는 점에서 계통운용 측면에서는 분산전원으로 분류된다.In addition, since wind power is generated using wind, which is the natural energy of the solar system, it is classified as a distributed power source in terms of system operation in that it generates electric power regardless of demand when the wind is blowing.

일반적으로 풍력발전기는 블레이드를 이용하여 바람 에너지를 기계적 에너지로 변환하고, 이 기계적 에너지를 발전기와 전력변환장치 통해 전력을 생산한다.Generally, a wind turbine uses a blade to convert wind energy into mechanical energy, and this mechanical energy is used to generate electricity through generators and power converters.

풍력발전(WTG : Wind Turbine Generator)시스템은 주요 부품들로 구성된 기계시스템, 전기 시스템 및 풍력발전기를 제어하는 제어시스템으로 나눌 수 있다.Wind Turbine Generator (WTG) systems can be divided into mechanical systems consisting of major components, electrical systems and control systems that control wind turbines.

또한, 한편으로는 날개를 포함한 허브 시스템, 각종 기계, 전기 및 제어장치를 탑재시킨 나셀(Nacelle), 이들 상부 중량물을 지상으로부터 받쳐주는 타워시스템으로 구분할 수 있다.On the one hand, it can be divided into a hub system including wings, Nacelle equipped with various machines, electric and control devices, and a tower system that supports these overheads from the ground.

즉, 바람에너지를 회전력으로 변환시켜 주는 회전날개(Blade)와 이를 주축(主軸)과 연결시켜 주는 허브(Hub)시스템, 날개의 회전력을 증속기 또는 발전기에 전달하여 주는 회전축(Shaft) 또는 주축(Main shaft), 회전속도를 올려 주는 증속기 (Gear box), 증속기로부터 전달받은 기계적 에너지를 전기적 에너지로 변환시키는 발전기(Generator), 제동장치인 브레이크, 날개의 각도를 조절하는 피치 시스템, 날개를 바람방향에 맞추기 위하여 나셀을 회전시켜 주는 요잉시스템(Yawing System)및 풍력발전기를 지지하는 타워시스템 등으로 구성된다.In other words, a rotating blade that converts wind energy into rotating force and a hub system that connects the rotating blade to the main shaft, a rotating shaft that transfers the rotating force of the blade to a generator or a generator, A main shaft, a gear box for increasing the speed of rotation, a generator for converting the mechanical energy transferred from the gearbox into electric energy, a braking device for braking, a pitch system for adjusting the angle of the wing, A yawing system that rotates the nacelle to match the wind direction, and a tower system that supports the wind turbine.

이때, 풍력의 제어시스템은 풍속에 따른 출력, 피치 각도, 로터와 발전기의 회전수를 조절하는 속도 및 출력 제어 시스템, 동작방식에 대한 제어를 담당하는 운전 상황 및 운전 모드 제어시스템, 전력계통과의 병렬운전을 제어하는 계통연계 제어 시스템 및 풍력발전기의 운전 상태를 실시간으로 감시하고 모니터링 하는 운전 및 모니터링 시스템으로 구성된다.In this case, the wind control system is composed of the output according to the wind speed, the pitch angle, the speed and the output control system for controlling the rotation speed of the rotor and the generator, the operation state and operation mode control system for controlling the operation mode, A grid connection control system that controls operation, and an operation and monitoring system that monitors and monitors the operating status of the wind power generator in real time.

여기서, 풍력발전기는 전기 제어시스템, 특히 상위 중앙제어기를 통해 종합적으로 제어 및 검시하고 있다.
Here, the wind turbine is controlled and verified comprehensively through an electric control system, in particular via a higher central controller.

도 1은 기존의 풍력발전기 정지풍속 구간의 동작방식을 개념적으로 나타낸 그래프이다.FIG. 1 is a graph conceptually showing an operation method of a conventional wind turbine stop wind speed section.

도 1을 참조하면, 기존 풍력발전기의 정지풍속 구간의 동작방식은, 풍속계를 통해 감지되는 실시간 평균풍속과 기동풍속(Cut-in wind speed)을 비교하여 평균풍속이 기동풍속을 초과하면 중앙제어기에 의해 풍력발전기가 가동된다.Referring to FIG. 1, the operation method of the stop wind speed section of a conventional wind power generator compares a real-time average wind speed and a cut-in wind speed detected through an anemometer, and when the average wind speed exceeds the start wind speed, The wind power generator is operated.

이와는 반대로 평균풍속이 정지풍속(Cut-out wind speed)을 초과하면, 중앙제어기에 의해 풍력발전기의 동작이 정지된다.On the contrary, when the average wind speed exceeds the cut-out wind speed, the operation of the wind power generator is stopped by the central controller.

그리고, 평균풍속이 정지풍속보다 약 2~3m/s 정도 이하로 내려가면 풍력발전기가 재 기동하는데, 즉 히스테리시스 컨트롤(Hysteresis control)방식으로 제어한다.If the average wind speed drops below about 2 to 3 m / s below the stop wind speed, the wind turbine generator restarts, that is, it is controlled by the hysteresis control method.

그러나, 상기 히스테리시스 컨트롤(Hysteresis control)방식을 적용하면, 히스테리시스(Hysteresis) 풍속 구간에서는 풍력발전기를 구동을 못 시키기 때문에 전력생산에 손실이 발생한다.However, when the hysteresis control method is applied, a loss of electric power is generated because the wind turbine can not be driven in the hysteresis wind speed section.

특히, 정지풍속에 자주 초과 되는 지역의 경우에는 이 손실이 상당하여 다른 제어 방식을 통해 이를 극복해야하는 문제가 있다.Particularly, in the case of an area often exceeding the stationary wind speed, this loss is significant, and there is a problem that it must be overcome by another control method.

(0001) 대한민국 공개특허공보 제10-2012-0025499호(2012년 03월 15일 공개)(0001) Korean Patent Publication No. 10-2012-0025499 (published on Mar. 15, 2012)

상술한 문제점을 해결하기 위해 안출된 본 발명의 과제는, 풍력발전기의 정지풍속에 도달하였을 때, 풍력발전기를 정지시키지 않게 풍력발전기의 회전속도와 출력이 감소하도록 제어하여 풍력발전 상태를 유지시킴으로써 지속적으로 전력을 생산할 수 있는 정지풍속 구간에서의 풍력발전 제어 방법을 제공하는 데 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a wind turbine, Which is capable of generating electric power in a stationary wind speed section.

상기 과제를 달성하기 위해 안출된 본 발명은, 풍력발전기의 정지풍속 구간 제어 방법으로서, 상기 풍력발전기의 중앙제어기에 기존의 정지풍속을 초과하는 평균풍속 신호가 감지되면, 상기 중앙제어기에 의해 상기 풍력발전기가 기존의 정지풍속(재 기동풍속)부터 새로 정의한 정지풍속까지의 구간에서 풍속에 따른 정해진 회전수와 출력전력에 맞추어 제어하는 것을 특징으로 한다.According to another aspect of the present invention, there is provided a method for controlling a stop wind speed range of a wind turbine, comprising the steps of: when an average wind speed signal exceeding a conventional stop wind speed is detected by a central controller of the wind turbine, And the generator is controlled in accordance with the predetermined number of revolutions and output power according to the wind speed in the section from the existing stop wind speed (restart wind speed) to the newly defined stop wind speed.

상기 중앙제어기는 기존의 정지풍속(재 기동풍속)에서부터 블레이드 힘과 발전기의 회전수가 감소 되도록 제어하여 상기 풍력발전기가 정해진 출력으로 발전하는 것을 가능하게 하는 것을 특징으로 한다.The central controller is controlled to reduce the number of revolutions of the blade force and the generator from the existing stop wind speed (restart wind speed), thereby enabling the wind power generator to generate power to a predetermined output.

상기 블레이드 각도와 발전기의 회전수는 피치시스템을 통해 회전속도제어에 의해 회전수가 제어하며, 풍력발전기의 출력전력은 전력변환장치를 통해 발전기 토크제어에 의해 제어되는 것을 특징으로 한다.The blade angle and the number of revolutions of the generator control the number of revolutions by the rotation speed control through the pitch system and the output power of the wind power generator is controlled by the generator torque control through the power conversion device.

상기 블레이드는 피치각도가 제어되는 것을 특징으로 한다.The blade is characterized in that the pitch angle is controlled.

본 발명은 풍력발전기의 정지풍속구간에 도달하였을 때, 풍력발전기를 정지시키지 않게 풍력발전기의 회전속도와 출력이 감소하도록 제어하여 발전 상태를 유지시켜 지속적으로 전력을 생산함으로써 기존의 히스테리시스 컨트롤(Hysteresis control)방식에 비해 더욱 많은 전력을 생산하는 효과가 있다.The present invention controls the rotation speed and the output of the wind turbine so as not to stop the wind turbine when the stop wind speed of the wind turbine reaches the stop wind speed to maintain the power generation state and continuously generate the electric power, ) Method, it has the effect of producing more electric power.

본 명세서에서 첨부되는 다음의 도면들은 본 발명의 바람직한 실시예를 예시하는 것이며, 발명의 상세한 설명과 함께 본 발명의 기술사상을 더욱 이해시키는 역할을 하는 것이므로, 본 발명은 그러한 도면에 기재된 사항에만 한정되어서 해석되어서는 아니 된다.
도 1은 기존의 풍력발전기 정지풍속 구간의 동작방식을 개념적으로 나타낸 그래프,
도 2는 본 발명의 실시예에 의한 정지풍속 구간에서의 풍력발전 제어 방법을 개념적으로 나타낸 그래프이다.BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, And shall not be construed as interpretation.
FIG. 1 is a graph conceptually showing an operation method of a conventional wind turbine stop wind speed section,
2 is a graph conceptually showing a wind power generation control method in a stationary wind speed section according to an embodiment of the present invention.

이하, 본 발명에 따른 정지풍속 구간에서의 풍력발전 제어 방법의 바람직한 실시예에 대해 상세하게 설명한다.
Hereinafter, a preferred embodiment of a wind power generation control method in a stationary wind speed section according to the present invention will be described in detail.

도 2는 본 발명의 실시예에 의한 정지풍속 구간에서의 풍력발전 제어 방법을 개념적으로 나타낸 그래프이다.2 is a graph conceptually showing a wind power generation control method in a stationary wind speed section according to an embodiment of the present invention.

도 2를 참조하면, 본 발명의 바람직한 실시예에 의한 정지풍속 구간에서의 풍력발전 제어 방법은, 풍력발전기의 중앙제어기에 기존의 정지풍속을 초과하는 평균풍속 신호가 감지되면, 상기 중앙제어기에 의해 상기 풍력발전기가 기존의 정지풍속(재 기동풍속)부터 신규 정지풍속까지의 구간에서 풍속에 따른 정해진 회전수와 출력전력에 맞추어 제어한다.Referring to FIG. 2, in the wind power generation control method in the stationary wind speed section according to the preferred embodiment of the present invention, when an average wind speed signal exceeding the existing stationary wind speed is detected in the central controller of the wind power generator, The wind turbine generator controls the wind turbine generator according to the predetermined number of rotations and the output power according to the wind speed in the section from the existing stop wind speed (restart wind speed) to the new stop wind speed.

그리고, 상기 중앙제어기는 정지풍속 구간에서 블레이드의 힘과 발전기의 회전수가 감소 되도록 제어하여 상기 풍력발전기가 기존의 정지풍속을 초과해도 발전이 유지되는 것을 가능하게 한다.And, the central controller controls the power of the blades and the number of revolutions of the generator to be reduced in the stationary wind speed section, so that the power generation can be maintained even if the wind power generator exceeds the existing stationary wind speed.

그리고, 상기 블레이드와 발전기의 회전수는 피치시스템에 의해 블레이드의 각도를 조절하여 회전수가 제어된다. 마지막으로 전력변환장치를 통해 상기 풍력발전기의 출력전력은 발전기 토크가 제어된다.The number of rotations of the blades and the generator is controlled by adjusting the angle of the blades by the pitch system. Finally, the output power of the wind turbine generator is controlled through the power converter.

먼저, 풍력발전기는 풍력 터빈 타워와, 상기 풍력 터빈 타워의 상부에 안착 된 나셀(Nacelle) 및 상기 나셀에 회전 가능하게 연결된 복수의 로터 블레이드로 이루어진다.First, the wind power generator is composed of a wind turbine tower, Nacelle seated on the top of the wind turbine tower, and a plurality of rotor blades rotatably connected to the nacelle.

그리고, 상기 나셀에는 상기 블레이드의 회전력을 기어박스 또는 발전기에 전달하는 샤프트와, 회전속도를 증속시키는 기어박스, 상기 기어박스에서 전달받은 기계적 에너지를 전기적 에너지로 변환시키는 발전기, 제동장치 및 중앙제어기로 구성된다.The nacelle is provided with a shaft for transmitting the rotational force of the blade to the gear box or the generator, a gear box for increasing the rotational speed, a generator for converting the mechanical energy transferred from the gear box into electrical energy, .

상기 중앙제어기는 풍속계 및 풍향계를 통해 감지된 신호를 수신하여 풍력발전기를 제어한다.The central controller receives signals sensed by the anemometer and the weather vane and controls the wind power generator.

상기 풍속계를 통해 약 3 내지 4m/s 정도의 기동풍속(Cut-in wind speed)에 풍력발전기가 가동된다. 그리고, 소정시간 동안 약 3~4 내지 20~25m/s 정도의 평균풍속이 지속 되면 안정적이고 정상적인 발전동작이 이루어진다.The wind turbine generator is operated at the cut-in wind speed of about 3 to 4 m / s through the anemometer. If the average wind speed of about 3 to 4 to 20 to 25 m / s is maintained for a predetermined time, stable and normal power generation operation is performed.

이때, 약 11 내지 13m/s 정도의 정격풍속(Rated wind speed)이 지속 되면, 발전기 출력이 100%인 정격출력(Rated power)이 이루어진다.At this time, if the rated wind speed of about 11 to 13 m / s is maintained, a rated power having a generator output of 100% is achieved.

그러나, 약 20 내지 25m/s 이상의 재 기동풍속(Re-started wind speed)이 발생하면, 중앙제어기에서는 블레이드의 피치각을 조절하여 샤프트가 과 회전됨으로써 발생하는 풍력발전기의 기계적인 부하 또는 블레이드의 파손을 방지하면서 동시에 정해진 출력이 이루어지는 구간안에서 연속 운전을 가능하게 한다.However, when a re-started wind speed of about 20 to 25 m / s or more occurs, the central controller adjusts the pitch angle of the blades so that the mechanical load of the wind generator or the damage And at the same time enables continuous operation in a section where a predetermined output is performed.

하지만, 평균풍속이 소정 시간이상 동안 지속적으로 정지풍속을 초과하게 된다면, 풍력발전기의 동작을 정지시킨다.
However, if the average wind speed continuously exceeds the stop wind speed for a predetermined time or longer, the operation of the wind power generator is stopped.

이상에서는 본 발명을 바람직한 실시예에 의거하여 설명하였으나, 본 발명의 기술적 사상은 이에 한정되지 아니하고 청구항에 기재된 범위 내에서 변형이나 변경 실시가 가능함은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 명백한 것이며, 그러한 변형이나 첨부된 특허청구범위에 속한다 할 것이다.While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And will fall within the scope of the appended claims.

Claims (4)

풍력발전기의 풍력발전 제어 방법으로서,
상기 풍력발전기의 중앙제어기에 정지풍속을 초과하는 평균풍속 신호가 감지되면, 상기 중앙제어기에 의해 상기 풍력발전기가 일정한 전력생산이 유지되도록 상기 풍력발전기를 제어하는 것을 특징으로 하는 정지풍속 구간에서의 풍력발전 제어 방법.A wind power generation control method for a wind power generator,
Wherein the control unit controls the wind turbine generator to maintain the constant power generation by the central controller when an average wind speed signal exceeding the stop wind speed is detected in the central controller of the wind turbine generator, Power generation control method. 제1항에 있어서,
상기 중앙제어기는 정지풍속 구간에서 블레이드의 회전력과 발전기의 회전수가 감소 되도록 제어하여 상기 풍력발전기가 기존 정지풍속의 초과시에도 일정한 전력생산이 유지되는 것을 가능하게 하는 것을 특징으로 하는 정지풍속 구간에서의 풍력발전 제어 방법.The method according to claim 1,
Wherein the central controller controls the rotational force of the blades and the rotational speed of the generator to be reduced in a stationary wind speed section so that constant power production can be maintained even when the wind power generator is in a state where the existing wind speed exceeds a stop wind speed. Power generation control method. 제2항에 있어서,
상기 블레이드의 회전력과 발전기의 회전수는 피치시스템에 의해 회전수가 제어되어, 정해진 출력전력은 전력변환시스템에 의해 출력이 제어되는 것을 특징으로 하는 정지풍속 구간에서의 풍력발전 제어 방법.3. The method of claim 2,
Wherein the number of rotations of the blade and the number of revolutions of the generator is controlled by a pitch system, and the output of the turbine is controlled by a power conversion system. 제3항에 있어서,
상기 블레이드는 피치각도가 제어되고, 출력전력은 발전기 토크가 제어되는 것을 특징으로 하는 정지풍속 구간에서의 풍력발전 제어 방법.The method of claim 3,
Wherein the blade is controlled in pitch angle and the output power is controlled in generator torque.
KR1020120118546A 2012-10-24 2012-10-24 Method for control of wind turbine generation cut-out wind speed area KR20140052447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120118546A KR20140052447A (en) 2012-10-24 2012-10-24 Method for control of wind turbine generation cut-out wind speed area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120118546A KR20140052447A (en) 2012-10-24 2012-10-24 Method for control of wind turbine generation cut-out wind speed area

Publications (1)

Publication Number Publication Date
KR20140052447A true KR20140052447A (en) 2014-05-07

Family

ID=50885680

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120118546A KR20140052447A (en) 2012-10-24 2012-10-24 Method for control of wind turbine generation cut-out wind speed area

Country Status (1)

Country Link
KR (1) KR20140052447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104863793A (en) * 2015-06-10 2015-08-26 东南大学 Control method for triggering variable pitch action instruction of wind driven generator according to mean value

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005220753A (en) * 2004-02-03 2005-08-18 Fuji Heavy Ind Ltd Horizontal axis windmill and its control method
JP2008274953A (en) * 2007-05-03 2008-11-13 Siemens Ag Wind turbine operating method and wind turbine
KR20110077139A (en) * 2009-12-30 2011-07-07 주식회사 효성 Wind turbine control method for reducing peak load
WO2012114487A1 (en) * 2011-02-23 2012-08-30 三菱重工業株式会社 Control device for wind turbine device, wind turbine device, and method for controlling wind turbine device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005220753A (en) * 2004-02-03 2005-08-18 Fuji Heavy Ind Ltd Horizontal axis windmill and its control method
JP2008274953A (en) * 2007-05-03 2008-11-13 Siemens Ag Wind turbine operating method and wind turbine
KR20110077139A (en) * 2009-12-30 2011-07-07 주식회사 효성 Wind turbine control method for reducing peak load
WO2012114487A1 (en) * 2011-02-23 2012-08-30 三菱重工業株式会社 Control device for wind turbine device, wind turbine device, and method for controlling wind turbine device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104863793A (en) * 2015-06-10 2015-08-26 东南大学 Control method for triggering variable pitch action instruction of wind driven generator according to mean value
CN104863793B (en) * 2015-06-10 2017-11-14 东南大学 A kind of control method that wind-driven generator pitching action command is triggered according to average value

Similar Documents

Publication Publication Date Title
CN101440783B (en) Operation control method of wind power generation
US7750490B2 (en) Method and system for extracting inertial energy from a wind turbine
US7312537B1 (en) Methods and apparatus for supplying and/or absorbing reactive power
EP1918581B1 (en) Methods and apparatus for operating a wind turbine
US8035241B2 (en) Wind turbine, control system, and method for optimizing wind turbine power production
US8858174B2 (en) Wind turbine torque-speed control
CN102155356A (en) Method for controlling running of wind generating set based on speed-regulating front end of electromagnetic coupler
CN201339544Y (en) Passive pitch-controlled wind-powered generator with shifting device
US20100129215A1 (en) System for providing dynamic pitch control in a wind turbine
CN201730751U (en) Megawatt-level vertical axis wind driven generator with adjustable angle of attack
CN102116264A (en) Megawatt-stage vertical shaft wind power generator with adjustable attack angle
KR102042259B1 (en) Wind-Electric Power Generation System and Driving Stop Method Thereof
ES2969541T3 (en) Power increase rate control
CN201339543Y (en) Passive pitch-controlled wind-powered generator
CN101004167A (en) High efficiency wind driven generator with vertical axis of petal type fan blades
CN103375332A (en) Dynamic optimization method for optimal resisting moment in variable-speed variable-pitch wind generating unit
KR101304916B1 (en) Method for controlling the pitch of blade for wind turbine
KR20140052447A (en) Method for control of wind turbine generation cut-out wind speed area
CN204805030U (en) Dual drive wind power generation set
KR100970302B1 (en) Horizontal Axis Wind Turbine Generator Using Dual Blade and Operating method thereof
CN104481811A (en) Lift force and resistance force integrated vertical axis wind turbine
KR101116123B1 (en) Alternative energy system using the building vents
CN218816748U (en) Offshore double-impeller wind generating set
CN115585091B (en) Double wind wheel direct-drive wind generating set with horizontal shaft up-down wind direction
Vidyanandan Recent developments in wind turbine systems

Legal Events

Date Code Title Description
A201 Request for examination
AMND Amendment
E902 Notification of reason for refusal
AMND Amendment
E601 Decision to refuse application
AMND Amendment