RU95107095A - Method for controlling wind-electric power plant - Google Patents

Method for controlling wind-electric power plant

Info

Publication number
RU95107095A
RU95107095A RU95107095/06A RU95107095A RU95107095A RU 95107095 A RU95107095 A RU 95107095A RU 95107095/06 A RU95107095/06 A RU 95107095/06A RU 95107095 A RU95107095 A RU 95107095A RU 95107095 A RU95107095 A RU 95107095A
Authority
RU
Russia
Prior art keywords
generator
wind
braking
brake
torque
Prior art date
Application number
RU95107095/06A
Other languages
Russian (ru)
Other versions
RU2075640C1 (en
Inventor
А.И. Забегаев
Ю.Н. Горбунов
В.Г. Клещенко
Ю.И. Новак
В.В. Демкин
Original Assignee
Товарищество с ограниченной ответственностью Фирма "Общемаш-Инжиниринг"
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 Товарищество с ограниченной ответственностью Фирма "Общемаш-Инжиниринг" filed Critical Товарищество с ограниченной ответственностью Фирма "Общемаш-Инжиниринг"
Priority to RU9595107095A priority Critical patent/RU2075640C1/en
Publication of RU95107095A publication Critical patent/RU95107095A/en
Application granted granted Critical
Publication of RU2075640C1 publication Critical patent/RU2075640C1/en

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Landscapes

  • Wind Motors (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

FIELD: wind-electric power engineering; wind-electric power plants generating electricity by using synchronous generators operating into supply mains. SUBSTANCE: method for controlling wind-electric power plant involves generation of electrical energy with generator operating into supply mains, aerodynamic limitation of power developed by windwheel, and windwheel stopping. With generator running into supply mains while blade operating mechanism fails, braking torque is applied to revolving members of power plant, its magnitude corresponding to rated torque in transmission, then generator is disconnected from supply mains, and additional braking is built up to allow generator to run as additional hysteresis brake at torque not exceeding rated value in transmission; additional braking torque is applied on one side for time chosen from equation given in description of invention. In addition, during braking of revolving members of plant, torque developed by electromagnetic brake is monotonously reduced, and as soon as angular velocity of windwheel reduces to 0.3-0.5 of rated value, electromagnetic brake is released; used as electromagnetic brake is generator running as hysteresis brake. EFFECT: improved reliability and safety in operation due to preventing emergency situations in case of failure of blade operating system, improved service life of power plant due to reduced transient loads acting on windwheel blades, transmission, generator running as brake, including as emergency brake. 4 cl, 4 dwg

Claims (1)

Изобретение относится к ветроэнергетике, конкретно к ветроэнергетическим установкам (ВЭУ), вырабатывающим электроэнергию с использованием синхронных генераторов, работающих на сеть. Целью изобретения является повышение надежности и безопасности работы ВЭУ за счет предупреждения развития аварийной ситуации при отказе системы поворота лопастей ветроколеса, повышение безопасности эксплуатации ВЭУ, повышение ресурса ВЭУ за счет снижения динамических нагрузок, действующих на лопасти ветроколеса, трансмиссию, генератор в режимах торможения, в том числе аварийного. Способ управления ветроэнергетической установкой включает выработку электроэнергии установкой при работе генератора на сеть, аэродинамическое ограничение мощности, развиваемой ветроколесом, и остановку ветроколеса. В режиме работы генератора на сеть при неисправности системы поворота лопастей к вращающимся элементам установки прикладывают тормозной момент, по величине соответствующий номинальному моменту в трансмиссии, затем выводят генератор из сети и создают дополнительное торможение, переводя генератор в режим дополнительного гистерезисного тормоза, задавая при гистерезисном торможении момент по величине, не превосходящий номинального момента в трансмиссии, а время t приложения дополнительного тормозного момента выбирают из соотношений, указанных в описании. Дополнительно в процессе торможения вращающихся элементов установки монотонно уменьшают величину момента, указанного в описании, развиваемого электромагнитным тормозом, по уменьшению угловой скорости вращения ветроколеса до 0,3-0,5 номинальной скорости вращения отключают электромагнитный тормоз, при этом в качестве электромагнитного тормоза используют генератор в режиме гистерезисного торможения.The invention relates to wind energy, specifically to wind power plants (wind turbines), generating electricity using synchronous generators operating on a network. The aim of the invention is to increase the reliability and safety of wind turbines by preventing the development of an emergency in case of failure of the rotor blade system of the wind wheel, improving the safety of operation of wind turbines, increasing the life of wind turbines by reducing the dynamic loads acting on the wind wheel blades, transmission, generator in braking modes, including emergency number. A method of controlling a wind power installation includes generating electricity by the installation when the generator is operating on a network, aerodynamically limiting the power developed by the wind wheel, and stopping the wind wheel. In the generator’s operation mode, in the event of a malfunction of the blade rotation system, the braking moment is applied to the rotating elements of the installation, the magnitude of which corresponds to the rated moment in the transmission, then the generator is taken out of the network and additional braking is created, setting the generator in the additional hysteretic brake mode, setting the moment under hysteretic braking in magnitude, not exceeding the rated torque in the transmission, and the time t of application of the additional braking torque is selected from the relations shown in the description. Additionally, in the process of braking the rotating elements of the installation, the moment specified in the description developed by the electromagnetic brake is monotonously reduced, the electromagnetic brake is disconnected by reducing the angular speed of the wind wheel to 0.3-0.5 of the nominal rotation speed, while the generator is used as an electromagnetic brake hysteretic braking mode.
RU9595107095A 1995-04-20 1995-04-20 Wind-electric power plant control process RU2075640C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU9595107095A RU2075640C1 (en) 1995-04-20 1995-04-20 Wind-electric power plant control process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU9595107095A RU2075640C1 (en) 1995-04-20 1995-04-20 Wind-electric power plant control process

Publications (2)

Publication Number Publication Date
RU95107095A true RU95107095A (en) 1997-01-27
RU2075640C1 RU2075640C1 (en) 1997-03-20

Family

ID=20167370

Family Applications (1)

Application Number Title Priority Date Filing Date
RU9595107095A RU2075640C1 (en) 1995-04-20 1995-04-20 Wind-electric power plant control process

Country Status (1)

Country Link
RU (1) RU2075640C1 (en)

Also Published As

Publication number Publication date
RU2075640C1 (en) 1997-03-20

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