CN111637025B - Detection method of wind driven generator - Google Patents
Detection method of wind driven generator Download PDFInfo
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- CN111637025B CN111637025B CN202010539703.7A CN202010539703A CN111637025B CN 111637025 B CN111637025 B CN 111637025B CN 202010539703 A CN202010539703 A CN 202010539703A CN 111637025 B CN111637025 B CN 111637025B
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- generator
- blade
- detection point
- generated energy
- air
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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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
Abstract
The invention discloses a detection method of a wind driven generator, which comprises the following operation steps: s1: placing the generator on a fixed table, and connecting a current detection meter to a power transmission end of the generator; s2: installing a first paddle for a rotating shaft of the generator, supplying air to the first paddle at a fixed speed in an oriented manner at a first detection point, and recording the generated energy of the generator; s3: the second detection point blows air to the first blade in a directional and constant speed mode, and the generated energy of the generator is recorded; s4: and (5) supplying air to the first blade at a fixed speed in an oriented way at the third detection point, and recording the generated energy of the generator. According to the detection method of the wind driven generator, the influence of the blades with different inclination angles and blade numbers on the generating capacity of the generator is tested under the condition of quantitative wind speed and wind direction, the inclination angles and the blade numbers of the blades are adjusted by the wind driven generator according to experimental parameters, so that the rotating shaft is driven to stably rotate when the blades rotate, and the offset load of the rotating shaft of the generator is reduced on the basis of improving the generating efficiency of the wind driven generator.
Description
Technical Field
The invention relates to the field of wind power detection, in particular to a detection method of a wind driven generator.
Background
Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world.
The existing wind power generator includes: the wind power generator comprises blades, a flow guide cover, a generator, a cabin cover, a tower base and a wind power detector. Wind power acts on the blades at a certain angle and speed, so that the blades generate rotating torque to rotate, the wind energy is converted into mechanical energy, and the rotating blades drive the generator on the tower to generate electricity, so that the wind energy is converted into electric energy.
In the working process of the wind driven generator, the quantity of the wind energy captured by the wind driven generator is in a cubic relation with the wind speed, and the included angle between the rotating shaft of the air guide sleeve and the wind direction also influences the efficiency of the wind driven generator for capturing the wind energy; when an included angle exists between the rotating shaft of the air guide sleeve and the wind direction, the efficiency of the wind driven generator for capturing wind energy is reduced, and meanwhile, when the included angle exists between the rotating shaft of the air guide sleeve and the wind direction, deviated wind power can generate a large deviation load for the wind driven generator, so that the service life of the wind driven generator is reduced. Therefore, accurate acquisition of wind parameters such as wind direction and wind speed is of great importance to the power generation efficiency, the service life and the like of the wind driven generator.
Disclosure of Invention
The invention mainly aims to provide a detection method of a wind driven generator, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a detection method of a wind driven generator comprises the following operation steps:
s1: placing the generator on a fixed table, and connecting a current detection meter to a power transmission end of the generator;
s2: installing a first blade for a rotating shaft of the generator, supplying air to the first blade at a fixed speed and in a directional manner at a first detection point, and recording the generated energy of the generator;
s3: the second detection point supplies air to the first blade at a fixed speed in an oriented manner, and the generated energy of the generator is recorded;
s4: the third detection point supplies air to the first blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s5: the first blade is disassembled, the second blade is installed, air is supplied to the second blade at a first detection point in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s6: the second blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s7: the third detection point supplies air to the second blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s8: the second blade is detached, the third blade is installed, air is supplied to the third blade at a fixed speed in an oriented mode at the first detection point, and the generated energy of the generator is recorded;
s9: the third blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s10: and (5) directionally supplying air to the third blade at a constant speed at the third detection point, and recording the generated energy of the generator.
Preferably, the first blade has five blades and a blade angle of ten degrees.
Preferably, the number of the blades of the second blade is eight, and the inclination angle of the blades is fifteen degrees.
Preferably, the number of the blades of the third blade is three, and the inclination angle of the blades is twenty-one degrees.
Preferably, the fixed station, the first detection point, the second detection point and the third detection point are arranged at equal intervals.
Preferably, the air blowing direction and the air speed of the first detection point, the second detection point and the third detection point are consistent.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, by testing the influence of the blades with different inclination angles and blade numbers on the power generation capacity of the generator under the condition of quantitative wind speed and wind direction, the wind driven generator adjusts the inclination angles and the blade numbers of the blades according to experimental parameters, so that the rotating shaft is driven to stably rotate when the blades rotate, the offset load of the rotating shaft of the generator is reduced on the basis of improving the power generation efficiency of the wind driven generator, and the service life of the generator is prolonged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention relates to a detection method of a wind driven generator, which comprises the following operation steps:
s1: placing the generator on a fixed table, and connecting a current detection meter to a power transmission end of the generator;
s2: installing a first paddle for a rotating shaft of the generator, supplying air to the first paddle at a fixed speed in an oriented manner at a first detection point, and recording the generated energy of the generator;
s3: the second detection point supplies air to the first blade at a fixed speed in an oriented manner, and the generated energy of the generator is recorded;
s4: the third detection point supplies air to the first blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s5: the first blade is disassembled, the second blade is installed, air is supplied to the second blade at a first detection point in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s6: the second blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s7: the third detection point supplies air to the second blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s8: the second blade is detached, the third blade is installed, air is supplied to the third blade at a fixed speed in an oriented mode at the first detection point, and the generated energy of the generator is recorded;
s9: the third blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s10: and (5) directionally supplying air to the third blade at a constant speed at the third detection point, and recording the generated energy of the generator.
The number of the blades of the first blade is five, the inclination angle of the blades is ten degrees, the number of the blades of the second blade is eight, the inclination angle of the blades is fifteen degrees, the number of the blades of the third blade is three, the inclination angle of the blades is twenty-one degrees, the fixed platform, the first detection point, the second detection point and the third detection point are arranged at equal intervals, and the air supply directions and the air speeds of the first detection point, the second detection point and the third detection point are consistent.
Example 2:
on the basis of embodiment 1, a detection method of a wind driven generator comprises the following operation steps:
s1: placing the generator on a fixed table, and connecting a current detection meter to a power transmission end of the generator;
s2: installing a first paddle for a rotating shaft of the generator, supplying air to the first paddle at a fixed speed in an oriented manner at a first detection point, and recording the generated energy of the generator;
s3: the second detection point supplies air to the first blade at a fixed speed in an oriented manner, and the generated energy of the generator is recorded;
s4: the third detection point supplies air to the first blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s5: the first blade is disassembled, the second blade is installed, air is supplied to the second blade at a first detection point in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s6: the second blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s7: the third detection point supplies air to the second blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s8: the second blade is disassembled, the third blade is installed, air is supplied to the third blade at a fixed speed and in a directional mode at the first detection point, and the generated energy of the generator is recorded;
s9: the third blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s10: and (5) directionally supplying air to the third blade at a constant speed at the third detection point, and recording the generated energy of the generator.
The number of the blades of the first blade is six, the inclination angle of the blades is twelve degrees, the number of the blades of the second blade is nine, the inclination angle of the blades is eighteen degrees, the number of the blades of the third blade is four, the inclination angle of the blades is twenty degrees, the fixed platform, the first detection point, the second detection point and the third detection point are arranged at equal intervals, the air supply directions and the air speeds of the first detection point, the second detection point and the third detection point are consistent, and the directions and the air speeds are three-stage northwest wind and north wind.
Example 3:
on the basis of embodiment 1, a detection method of a wind driven generator comprises the following operation steps:
s1: placing the generator on a fixed table, and connecting a current detection meter to a power transmission end of the generator;
s2: installing a first paddle for a rotating shaft of the generator, supplying air to the first paddle at a fixed speed in an oriented manner at a first detection point, and recording the generated energy of the generator;
s3: the second detection point supplies air to the first blade at a fixed speed in an oriented manner, and the generated energy of the generator is recorded;
s4: the third detection point supplies air to the first blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s5: the first blade is disassembled, the second blade is installed, air is supplied to the second blade at a first detection point in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s6: the second blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s7: the third detection point supplies air to the second blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s8: the second blade is detached, the third blade is installed, air is supplied to the third blade at a fixed speed in an oriented mode at the first detection point, and the generated energy of the generator is recorded;
s9: the third blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s10: and (5) directionally supplying air to the third blade at a constant speed at the third detection point, and recording the generated energy of the generator.
The number of the blades of the first blade is five, the inclination angle of the blades is sixteen degrees, the number of the blades of the second blade is five, the inclination angle of the blades is twenty degrees, the number of the blades of the third blade is five, the inclination angle of the blades is twenty-five degrees, the fixed station, the first detection point, the second detection point and the third detection point are arranged at equal intervals, the air supply directions and the air speeds of the first detection point, the second detection point and the third detection point are consistent, and the directions and the air speeds are West wind six grades.
Example 4:
on the basis of embodiment 1, a detection method of a wind driven generator comprises the following operation steps:
s1: placing the generator on a fixed table, and connecting a current detection meter to a power transmission end of the generator;
s2: installing a first paddle for a rotating shaft of the generator, supplying air to the first paddle at a fixed speed in an oriented manner at a first detection point, and recording the generated energy of the generator;
s3: the second detection point supplies air to the first blade at a fixed speed in an oriented manner, and the generated energy of the generator is recorded;
s4: the third detection point supplies air to the first blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s5: the first blade is disassembled, the second blade is installed, air is supplied to the second blade at a first detection point in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s6: the second blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s7: the third detection point supplies air to the second blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s8: the second blade is detached, the third blade is installed, air is supplied to the third blade at a fixed speed in an oriented mode at the first detection point, and the generated energy of the generator is recorded;
s9: the third blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s10: and (5) directionally supplying air to the third blade at a constant speed at the third detection point, and recording the generated energy of the generator.
The number of the blades of the first blade is seven, the inclination angle of the blades is sixteen degrees, the number of the blades of the second blade is nine, the inclination angle of the blades is sixteen degrees, the number of the blades of the third blade is twelve, the inclination angle of the blades is sixteen degrees, the fixed platform, the first detection point, the second detection point and the third detection point are arranged at equal intervals, the air supply directions and the air speeds of the first detection point, the second detection point and the third detection point are consistent, and the directions and the air speeds are seven grades of north wind.
According to the invention, by testing the influence of the blades with different inclination angles and blade numbers on the generating capacity of the generator under the condition of quantitative wind speed and wind direction, the wind driven generator adjusts the inclination angles and the blade numbers of the blades according to experimental parameters, so that the rotating shaft is driven to stably rotate when the blades rotate, the offset load of the rotating shaft of the generator is reduced on the basis of improving the generating efficiency of the wind driven generator, and the service life of the generator is prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A detection method of a wind driven generator is characterized in that: the method comprises the following operation steps:
s1: placing the generator on a fixed table, and connecting a current detection meter to a power transmission end of the generator;
s2: installing a first paddle for a rotating shaft of a generator, supplying air to the first paddle at a fixed speed in a directional mode at a first detection point, and recording the generated energy of the generator, wherein the number of the blades of the first paddle is five, and the inclination angle of the blades is ten degrees;
s3: the second detection point supplies air to the first blade at a fixed speed in an oriented manner, and the generated energy of the generator is recorded;
s4: the third detection point blows air to the first blade in a directional and constant speed mode, and the generated energy of the generator is recorded;
s5: the method comprises the following steps of disassembling a first blade, installing a second blade, supplying air to the second blade at a fixed speed and a fixed direction at a first detection point, and recording the generated energy of a generator, wherein the number of the blades of the second blade is eight, and the inclination angle of the blades is fifteen degrees;
s6: the second blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s7: the third detection point supplies air to the second blade in an oriented and constant speed mode, and the generated energy of the generator is recorded;
s8: the second paddle is disassembled, the third paddle is installed, air is supplied to the third paddle at a first detection point in an oriented and constant speed mode, the generated energy of the generator is recorded, the number of the third paddle is three, and the inclination angle of the third paddle is twenty-one degrees;
s9: the third blade is supplied with air at a fixed speed in an oriented way at the second detection point, and the generated energy of the generator is recorded;
s10: and (5) supplying air to the third blade at a fixed speed in a directional manner at a third detection point, and recording the generated energy of the generator.
2. The method for inspecting a wind turbine according to claim 1, wherein: the fixed station, the first detection point, the second detection point and the third detection point are arranged at equal intervals.
3. The method for inspecting a wind turbine according to claim 2, wherein: and the air supply direction and the air speed of the first detection point, the second detection point and the third detection point are consistent.
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| CN202010539703.7A CN111637025B (en) | 2020-06-12 | 2020-06-12 | Detection method of wind driven generator |
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| CN202010539703.7A CN111637025B (en) | 2020-06-12 | 2020-06-12 | Detection method of wind driven generator |
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| CN111637025B true CN111637025B (en) | 2022-05-03 |
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