CN113236509B - Beidou positioning-based settlement monitoring method for wind power tower foundation - Google Patents
Beidou positioning-based settlement monitoring method for wind power tower foundation Download PDFInfo
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- CN113236509B CN113236509B CN202110661118.9A CN202110661118A CN113236509B CN 113236509 B CN113236509 B CN 113236509B CN 202110661118 A CN202110661118 A CN 202110661118A CN 113236509 B CN113236509 B CN 113236509B
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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 Beidou positioning-based settlement monitoring method for a wind power tower cylinder foundation, which comprises the following steps of: determining initial height values and initial inclination values of the reference station and each monitoring terminal; calculating the height value of each monitoring terminal and the inclination of the inclinometer every 2 h; comparing the calculated height value of the monitoring terminal with the height value of the reference station to calculate the relative variation of the monitoring terminal, and obtaining the current variation X, Y, H of the monitoring terminal; judging whether settlement occurs according to the H value, and comparing the calculated inclination amount of the inclinometer with the initial inclination value of the inclinometer to calculate the current variation value U and the azimuth angle V; the invention overcomes the defects of the prior art, effectively avoids the problems of wind power interference and inaccurate displacement data caused by inclination, and simultaneously can send early warning information to users according to the settlement and inclination data.
Description
Technical Field
The invention relates to the technical field of settlement monitoring methods, and particularly belongs to a settlement monitoring method of a wind power tower drum foundation based on Beidou positioning.
Background
Wind power is one of the cleanest energy sources. Moreover, it is inexhaustible. The wind power generation device is very suitable for and can be used for generating electricity by utilizing wind power according to local conditions in coastal islands, grassland pasturing areas, mountain areas and plateau areas with water shortage, fuel shortage and inconvenient traffic. The wind energy resources in China are rich, the wind energy storage capacity which can be developed and utilized is about 10 hundred million kW, and the wind power accumulation installed scale in China reaches 281.72GW after 2020. Meanwhile, the newly increased installed scale (71.67GW) in 2020 in one year is higher than the sum of 2017-2019 in three years, in order to achieve the aim that non-fossil energy accounts for 15% and 20% of primary energy consumption proportion in 2020 and 2030, energy transformation is promoted, and China must accelerate the development of renewable energy industries such as wind power and the like. .
The wind driven generator is generally installed on a wind power tower, if the wind power tower is changed due to conditions such as wind power sudden change, geological settlement and the like, the wind driven generator is caused to collapse, if the wind power tower is light, the machine is damaged, if the personnel and property loss is serious, the settlement and inclination data of the wind power tower need to be monitored, recorded and analyzed, the traditional manual measurement and statistics method is troublesome, the period is long, the labor intensity is high, the effect is not ideal, and therefore a system capable of automatically and effectively monitoring the settlement of a wind power foundation and the inclination of the tower needs to be developed and applied.
Disclosure of Invention
The invention aims to provide a Beidou positioning-based settlement monitoring method for a wind power tower cylinder foundation, which overcomes the defects of the prior art.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a settlement monitoring method of a wind power tower cylinder foundation based on Beidou positioning comprises the following steps:
s1, determining the initial height values and the initial inclination values of the inclinometer of the reference station and each monitoring terminal;
s2, calculating the height value of each monitoring terminal and the inclination of the inclinometer every 2 h;
s3, comparing the height value of the monitoring terminal calculated in the step S2 with the height value of the reference station to calculate the relative variation of the monitoring terminal, and obtaining the current variation X, Y, H of the monitoring terminal;
s4, judging whether settlement occurs according to the H value in the step S3, if so, calculating an early warning grade according to the H value, and sending out recording information;
s5, comparing the inclination amount of the inclinometer calculated in the step S2 with the initial inclination value of the inclinometer to calculate the current variation value U and the current azimuth angle V;
s6, judging whether the early warning threshold value is reached according to the U value in the step S5, if the early warning threshold value is reached, calculating the early warning grade, and recording early warning information;
s7, judging whether horizontal displacement occurs according to the X, Y value in the step S3, judging whether a correction model needs to be introduced according to the V value in the step S5, and correcting X, Y value of the horizontal displacement through the correction model if the correction model needs to be introduced;
s8, storing the H value, the corrected X, Y value, the inclination variation value U, the azimuth angle V data and the early warning information into a database;
and S9, if the database in the step S8 has early warning information, sending out early warning, otherwise, not sending out early warning.
The wind power correction model is used for calibrating 16 wind directions in advance, the real-time position variation amount of the wind power tower barrel influenced by wind power is calculated through the wind directions and the wind speeds, the real-time position variation amount and X, Y, H of the monitoring terminal are combined for calculation, external factor interference is eliminated, and more accurate position variation amount is obtained.
The inclinometer and the monitoring terminal are arranged in pairs and are installed on the lower portion of the wind power tower cylinder.
Wherein, a pair of inclinometers and monitoring terminal are correspondingly installed on each wind power tower cylinder.
Wherein, the distance between the monitoring terminal and the reference station is not more than 20 km.
Compared with the prior art, the invention has the following implementation effects: according to the method, the inclinometer is matched with the monitoring terminal for use, the settlement and inclination data of the wind power tower can be accurately judged through the variation value X, Y, H obtained by the monitoring terminal and the inclination variation value U and azimuth angle V data obtained by the inclinometer, the problems of wind power interference and inaccurate displacement data caused by inclination are effectively solved, and meanwhile, the method can send early warning information to a user according to the settlement and inclination data.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation to be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, according to the settlement monitoring method of the Beidou positioning-based wind power tower base, firstly, a Beidou navigation system, a reference station and a monitoring terminal are used for determining a height initial value of the reference station and each monitoring terminal and an inclination initial value of an inclinometer, the inclinometer and the monitoring terminal are arranged in pairs and are installed at the lower part of the wind power tower, a pair of the inclinometer and the monitoring terminal are correspondingly installed on each wind power tower, and the distance between the monitoring terminal and the reference station is not more than 20km, so that the monitoring precision is improved.
Then, calculating the height value of each monitoring terminal and the inclination of the inclinometer every 2 h; and comparing the calculated height value of the monitoring terminal with the height value of the reference station to calculate the relative variation of the monitoring terminal, so as to obtain the current variation X, Y, H of the monitoring terminal.
Judging whether sedimentation occurs or not according to the H value, if so, calculating an early warning grade according to the H value, and sending recorded early warning information; then, the current variation value U and the azimuth angle V are calculated by comparing the inclination amount of the inclinometer with the initial value of the inclination of the inclinometer.
Judging whether the inclination of the wind power tower drum reaches an early warning threshold value or not according to the U value, if so, calculating an early warning level, and recording early warning information;
and judging whether a correction model is required to be introduced or not according to the step azimuth angle V value, wherein the correction model is a wind power correction model, and the wind power correction model is the difference between the initial value of the inclination of the wind power tower and the inclination value of the position from the swing of the wind power tower to the maximum position under the action of wind power. If a correction model is required to be introduced, the X, Y value of the horizontal displacement is corrected through the correction model, and if the correction is not required, the magnitude of X, Y value is directly used for judging whether the horizontal displacement occurs.
Finally, storing the H value, the corrected X, Y value, the inclination variation value U, the azimuth angle V data and the early warning information into a database; if the database has early warning information, the early warning is sent out, otherwise, the early warning is not sent out.
According to the method, the inclinometer is matched with the monitoring terminal for use, the settlement and inclination data of the wind power tower can be accurately judged through the variation value X, Y, H obtained by the monitoring terminal and the inclination variation value U and azimuth angle V data obtained by the inclinometer, the problems of wind power interference and inaccurate displacement data caused by inclination are effectively solved, and meanwhile, the method can send early warning information to a user according to the settlement and inclination data.
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 (2)
1. The settlement monitoring method of the wind power tower cylinder foundation based on Beidou positioning is characterized by comprising the following steps of:
s1, determining the initial height values and the initial inclination values of the inclinometer of the reference station and each monitoring terminal;
s2, calculating the height value of each monitoring terminal and the inclination of the inclinometer every 2 h;
s3, comparing the height value of the monitoring terminal calculated in the step S2 with the height value of the reference station to calculate the relative variation of the monitoring terminal, and obtaining the current variation X, Y, H of the monitoring terminal;
s4, judging whether settlement occurs according to the H value in the step S3, if so, calculating an early warning grade according to the H value, and sending out recording information;
s5, comparing the inclination amount of the inclinometer calculated in the step S2 with the initial inclination value of the inclinometer to calculate the current variation value U and the current azimuth angle V;
s6, judging whether the early warning threshold value is reached according to the U value in the step S5, if the early warning threshold value is reached, calculating the early warning grade, and recording early warning information;
s7, judging whether horizontal displacement occurs according to the X, Y value in the step S3, judging whether a correction model needs to be introduced according to the V value in the step S5, and correcting X, Y value of the horizontal displacement through the correction model if the correction model needs to be introduced;
s8, storing the H value, the corrected X, Y value, the inclination variation value U, the azimuth angle V data and the early warning information into a database;
s9, if the database in the step S8 has early warning information, an early warning is sent out, otherwise, no early warning is sent out;
the wind power correction model is a difference between an initial inclination value of the wind power tower and an inclination value of the maximum position of the wind power tower under the action of wind power;
the inclinometer and the monitoring terminal are arranged in pair and are installed at the lower part of the wind power tower cylinder;
and each wind power tower cylinder is correspondingly provided with a pair of inclinometers and monitoring terminals.
2. The Beidou positioning-based wind power tower drum foundation settlement monitoring method according to claim 1, characterized in that: the distance between the monitoring terminal and the reference station is no more than 20 km.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568415A (en) * | 2016-11-10 | 2017-04-19 | 国家电网公司 | Monitoring system and monitoring method for settlement of wind-power tower foundation |
| CN109268213A (en) * | 2018-08-22 | 2019-01-25 | 明阳智慧能源集团股份公司 | A kind of wind power generating set load on-line monitoring and active load shedding control method |
| US10724505B2 (en) * | 2016-11-30 | 2020-07-28 | Dji Technology, Inc. | Aerial inspection in a movable object environment |
| CN112629488A (en) * | 2020-12-28 | 2021-04-09 | 北京市燃气集团有限责任公司 | Beidou-based settlement monitoring method and system |
| CN112727701A (en) * | 2020-11-20 | 2021-04-30 | 沈阳工程学院 | Draught fan effective wind speed measuring device and calculating method based on radar wind measurement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10330081B2 (en) * | 2017-02-07 | 2019-06-25 | International Business Machines Corporation | Reducing curtailment of wind power generation |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568415A (en) * | 2016-11-10 | 2017-04-19 | 国家电网公司 | Monitoring system and monitoring method for settlement of wind-power tower foundation |
| US10724505B2 (en) * | 2016-11-30 | 2020-07-28 | Dji Technology, Inc. | Aerial inspection in a movable object environment |
| CN109268213A (en) * | 2018-08-22 | 2019-01-25 | 明阳智慧能源集团股份公司 | A kind of wind power generating set load on-line monitoring and active load shedding control method |
| CN112727701A (en) * | 2020-11-20 | 2021-04-30 | 沈阳工程学院 | Draught fan effective wind speed measuring device and calculating method based on radar wind measurement |
| CN112629488A (en) * | 2020-12-28 | 2021-04-09 | 北京市燃气集团有限责任公司 | Beidou-based settlement monitoring method and system |
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