CN113915057A - Cut-out control method for low-speed wind generating set - Google Patents
Cut-out control method for low-speed wind generating set Download PDFInfo
- Publication number
- CN113915057A CN113915057A CN202111324861.1A CN202111324861A CN113915057A CN 113915057 A CN113915057 A CN 113915057A CN 202111324861 A CN202111324861 A CN 202111324861A CN 113915057 A CN113915057 A CN 113915057A
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- China
- Prior art keywords
- cut
- generating set
- speed
- wind generating
- wind
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010248 power generation Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
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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
- F03D7/026—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for starting-up
-
- 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
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
- F03D7/0268—Parking or storm protection
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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
- F03D7/04—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
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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
- F05B2270/32—Wind speeds
- F05B2270/3201—"cut-off" or "shut-down" wind speed
-
- 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
- F05B2270/3202—"cut-in" or starting wind speed
-
- 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)
- Wind Motors (AREA)
Abstract
The invention discloses a cut-out control method of a low-speed wind generating set, which mainly relates to the technical field of control methods and comprises the steps of resetting cut-in and cut-out speed and adding a generator data judgment condition, respectively setting the cut-in and cut-out speed to be two different parameter values, and setting the reset cut-in and cut-out speed and the added generator data judgment condition to be starting necessary conditions of the generating sets which are related to each other. According to the method, two necessary conditions are formed by the preset generator data judgment conditions with different parameter values and increased cut-in and cut-out speeds, so that the frequent cut-in and cut-out phenomena of the wind generating set at low wind speed are greatly reduced; the situations that the wind generating set runs for a moment and stops for a moment are greatly reduced; the impact of frequent start and stop on the wind generating set is reduced; the energy consumption of the wind power generation is reduced; the service life of the wind generating set is prolonged.
Description
Technical Field
The invention relates to a control method, in particular to a switching-out control method of a low-speed wind generating set.
Background
The wind-driven generator is a device for converting wind energy into electric energy, also called windmill, and mainly comprises blades, generator, mechanical parts and electric parts. Wind power generation uses natural energy, has no fuel problems, and does not produce radiation or air pollution, thus forming a hot tide in the world.
According to the characteristics of wind power generation, the unit is greatly influenced by the wind power, the power generation can be started at a breeze speed of about 2.5m/s according to the current windmill technology, the initial design is convenient for controlling the cut-in and cut-out wind speed of the wind generating set at a low wind speed to be a value, namely the wind speed is cut in at a speed of more than 2.5m/s, the wind generating set operates at a cut-out speed of less than 2.5m/s, the wind generating set stops operating, after increasing technology, the design is found to cause that the generator set is frequently switched in and out at low wind speed, the generator set is caused to run for a moment and stop for a moment, the control method is designed for solving the problems that huge impact of frequent starting and stopping is formed on the generator set, normal power generation of the generator set is influenced, and self power consumption is high.
Disclosure of Invention
The invention provides a switching-out control method for a low-speed wind generating set, which solves the problems in the prior art mentioned in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows: resetting the cutting-in and cutting-out speeds, and respectively setting the cutting-in and cutting-out speeds as two different parameter values;
adding a generator data discrimination condition;
the reset cut-in and cut-out speed and the increased generator data determination condition are set as starting requirements of the generator sets which are related to each other.
In order to avoid frequent cut-in operation and cut-out shutdown of the wind generating set, the cut-in speed of the wind generating set operation is set to be more than 2.5m/s, and the cut-out speed of the wind generating set shutdown is set to be less than 2.0 m/s.
The necessary condition of starting is increased, a guarantee is added for avoiding frequent cut-in and cut-out phenomena of the wind generating set, and the generator data judging condition is set as the reverse power or zero power of the generator.
The invention adopts the structure and has the following advantages:
two necessary conditions are formed by the preset generator data judgment conditions with increased cut-in and cut-out speeds of different parameter values, so that the frequent cut-in and cut-out phenomena of the wind generating set at low wind speed are greatly reduced; the situations that the wind generating set runs for a moment and stops for a moment are greatly reduced; the impact of frequent start and stop on the wind generating set is reduced; the energy consumption of the wind power generation is reduced; the service life of the wind generating set is prolonged.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments.
Resetting the cut-in speed and the cut-out speed, respectively setting the cut-in speed and the cut-out speed as two different parameter values, and in order to avoid frequent cut-in operation and cut-out shutdown of the wind generating set, setting the cut-in speed of the wind generating set to be greater than 2.5m/s and setting the cut-out speed of the wind generating set to be less than 2.0 m/s;
adding a generator data discrimination condition, increasing necessary conditions for starting, adding a guarantee for avoiding frequent cut-in and cut-out phenomena of the wind generating set, and setting the generator data discrimination condition as the reverse power or zero power of the generator;
setting the reset cut-in and cut-out speed and the increased generator data judgment condition as the starting necessary conditions of the generator sets which are related to each other, wherein one of the conditions is not available;
the specific working conditions are as follows: (1) the cutting-in conditions are as follows: when the average value of the wind speed is more than 2.5m/s for 1min, the wind generating set is controlled to start through the control system; (2) the excision conditions are as follows: and when the generator is switched out at the time of reverse power or zero power and the average value of the wind speed is less than 2.0m/s after 10min, the wind generating set is controlled to stop by the control system.
The first embodiment is as follows: an example of data displayed by a wind generating set unit foundation cabinet is shown in the mode of low wind speed cut-in (running) and low wind speed non-cut-out (running) of the Xuezhuang Huaneng wind power station:
meter-low wind speed cut-in (running) wind generating set tower footing cabinet display data
Display data of tower footing cabinet of wind generating set with meter II and low wind speed not cut out (running)
The above control system is prior art.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (3)
1. A switching-out control method for a low-speed wind generating set is characterized by comprising the following steps: resetting the cutting-in and cutting-out speeds, and respectively setting the cutting-in and cutting-out speeds as two different parameter values;
adding a generator data discrimination condition;
setting the reset cut-in and cut-out speed and the increased generator data determination condition as starting requirements of generator sets related to each other.
2. The low-speed wind turbine generator system switching-out control method according to claim 1, wherein: and setting the cut-in speed of the wind generating set to be greater than 2.5m/s, and setting the cut-out speed of the wind generating set to be less than 2.0 m/s.
3. The low-speed wind turbine generator system switching-out control method according to claim 2, wherein: and setting the generator data judgment condition as the reverse power or zero power of the generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111324861.1A CN113915057A (en) | 2021-11-10 | 2021-11-10 | Cut-out control method for low-speed wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111324861.1A CN113915057A (en) | 2021-11-10 | 2021-11-10 | Cut-out control method for low-speed wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113915057A true CN113915057A (en) | 2022-01-11 |
Family
ID=79246028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111324861.1A Pending CN113915057A (en) | 2021-11-10 | 2021-11-10 | Cut-out control method for low-speed wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113915057A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090001724A1 (en) * | 2007-06-26 | 2009-01-01 | Kr Co., Ltd. | Method and apparatus for controlling vertical axis wind power generation system |
| CN104832371A (en) * | 2015-05-28 | 2015-08-12 | 大唐山东烟台电力开发有限公司 | Control method and system for wind generating set |
-
2021
- 2021-11-10 CN CN202111324861.1A patent/CN113915057A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090001724A1 (en) * | 2007-06-26 | 2009-01-01 | Kr Co., Ltd. | Method and apparatus for controlling vertical axis wind power generation system |
| CN104832371A (en) * | 2015-05-28 | 2015-08-12 | 大唐山东烟台电力开发有限公司 | Control method and system for wind generating set |
Non-Patent Citations (1)
| Title |
|---|
| 张俊妍，李玉军，张振伟: "《风力发电场建设》", 天津大学出版社, pages: 304 - 308 * |
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