CN114812873B - A monitoring system with adjustable be used for marine wind-powered electricity generation basis - Google Patents
A monitoring system with adjustable be used for marine wind-powered electricity generation basis Download PDFInfo
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- CN114812873B CN114812873B CN202210299112.6A CN202210299112A CN114812873B CN 114812873 B CN114812873 B CN 114812873B CN 202210299112 A CN202210299112 A CN 202210299112A CN 114812873 B CN114812873 B CN 114812873B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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Abstract
The invention discloses an adjustable monitoring system for an offshore wind power foundation, which belongs to the technical field of offshore wind power generation safety monitoring and comprises a control center, a data monitoring module and a sensor module, wherein the control center is connected with the data monitoring module, receives monitoring data from the data monitoring module, and the sensor module is connected with the data monitoring module through an electric signal; the monitoring module comprises a bolt stress sensor, a stress sensor and a pressure sensor, the data monitoring module comprises a current detector, a direct current motor and a travel switch, and the bolt stress sensor, the stress sensor and the pressure sensor are connected in parallel and then connected in series with the direct current motor and the travel switch; according to the wind power generation system and the wind power generation method, data can be sent at different intervals according to the size of wind waves or ocean currents, data sending can be quickened, data delay time is reduced, analysis and arrangement time of workers is reduced, and in addition, the workers can judge the actual safety condition of the wind power foundation through the frequency of receiving the data.
Description
Technical Field
The invention belongs to the technical field of offshore wind power generation safety monitoring, and particularly relates to an adjustable monitoring system for an offshore wind power foundation.
Background
Wind energy has gained attention in recent years as a clean and renewable new energy source. As the offshore wind resources are rich, the wind power generation system has the advantages of large generated energy, long power generation time, no land occupation, large-scale development and the like, and the wind power technology is gradually extended from land to sea. Offshore wind turbines have become a hotspot in the world's renewable energy development area.
However, the offshore wind farm is more severe than the land wind farm in the working environment, and risks are brought to the operation of the offshore wind turbine due to severe weather such as corrosion of moisture and salt fog, damage of lightning and typhoons, ice and snow, sea waves, sea impactors (sea ice) and the like.
The traditional fan safety observation equipment comprises a level gauge, a fiber bragg grating sensor and the like, wherein the level gauge cannot be applied to offshore fan observation due to the influence of geographical environment factors; the fiber bragg grating sensor is widely applied in the engineering field, the technology is the most mature, but because the fiber bragg grating is fragile, the fiber bragg grating is very easy to damage in a severe working environment, the fiber bragg grating sensor needs to be packaged and then can be used, namely, the sensor is implanted into a unit tower, and the fiber bragg grating sensor can cause the technical problem that the fiber bragg grating is difficult to take out and re-implant in later maintenance and repair.
The method has the advantages that the method has no good monitoring means for the toppling problem of the offshore wind power foundation, the damage to the offshore wind power foundation is very large under the sudden severe weather conditions such as strong wind, tsunami and the like, so that the offshore wind power foundation is monitored essentially, but because the offshore wind waves are not fixed, sometimes the wind waves are large, sometimes the wind waves are small, at present, the sensors at three different positions on the wind power pile are all control stations for transmitting data to the land in real time, the transmission data size is large, due to the limited transmission size of the submarine optical cable, a certain time delay is caused, and meanwhile, the staff of the control station needs to integrate the data, and then a large amount of time and labor are wasted through analysis.
Disclosure of Invention
The invention aims to provide an adjustable monitoring system for an offshore wind power foundation, which can send data at different intervals according to the magnitude of wind waves or ocean currents, can speed up data sending, reduce data delay time, reduce analysis and arrangement time of staff, and can judge the actual safety condition of the wind power foundation through the frequency of receiving the data.
In order to achieve the above purpose, the present invention provides the following technical solutions: the adjustable monitoring system for the offshore wind power foundation comprises a control center, a data monitoring module and a sensor module, wherein the control center is connected with the data monitoring module, the control center receives monitoring data from the data monitoring module, and the sensor module is connected with the data monitoring module through an electric signal;
the monitoring module comprises a bolt stress sensor, a stress sensor and a pressure sensor, wherein a main rod of the offshore wind power foundation consists of a plurality of sections of fixed rods, two adjacent fixed rods are connected through flange bolts, the bolt stress sensor is fixed at the flange bolt connection part and is used for detecting wind pressure on the side face of the fixed rods, the stress sensor is arranged at an inclined strut part between the main rod of the offshore wind power foundation and a base and is used for detecting stress of the main rod on the base, the pressure sensor is arranged inside the base of the offshore wind power foundation, the base is hollow, the pressure sensor is arranged on the inner wall of the base, and a plurality of pressure sensors are arranged along the inner wall of the base and are used for detecting the pressure on the inclined side of the base;
the data monitoring module comprises three current detectors which are respectively connected with the bolt stress sensor, the stress sensor and the pressure sensor, and also comprises a direct current motor and a travel switch, wherein the travel switch is opened intermittently by the direct current motor.
The bolt stress sensor, the stress sensor and the pressure sensor are connected in parallel, and are connected in series with the direct current motor and the travel switch after being connected in parallel.
Preferably, the output voltage of the output power supply is 220V, and the voltage is stabilized.
Preferably, a cam is fixed at the output end of the direct current motor, the cam can be in interference with the travel switch at the maximum diameter, and the direct current motor is fixed at the control center.
Preferably, the rotation speed of the direct current motor is increased by 1-2 times when the voltage at two ends of the direct current motor is increased by 2-3 v.
The technical scheme is adopted:
preferably, the control center comprises a control console, a control host is placed on the control console, the direct current motor fixed on the control console is arranged on one side of the control host, a supporting plate is fixed on one side of the travel switch through screws, and the supporting plate is fixed on the control console.
The beneficial effects of the invention are as follows: according to the wind power generation system, the bolt stress sensor, the stress sensor and the pressure sensor which are respectively located at three positions are used for receiving pressure from wind waves or ocean currents, when the pressure is changed, the voltage change of the direct current motor connected in series can be controlled, the rotating speed of the direct current motor is controlled, when the rotating speed of the direct current motor is higher, the closing interval time of the travel switch is smaller, therefore, data can be sent according to different interval time corresponding to the magnitude of the wind waves or the ocean currents, data sending can be quickened, the data delay time is shortened, the time for analyzing and sorting by workers is shortened, and in addition, the actual safety condition of a wind power foundation can be judged by the workers through the frequency of receiving the data.
Drawings
FIG. 1 is a schematic diagram of an adjustable monitoring system for an offshore wind farm foundation according to the present invention;
FIG. 2 is a schematic circuit diagram of an embodiment of an adjustable monitoring system for offshore wind power foundation provided by the present invention;
fig. 3 is a schematic diagram of a connection structure between a direct current motor and a travel switch of an adjustable monitoring system for an offshore wind power foundation.
Description of the embodiments
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
Referring to fig. 1-3, an adjustable monitoring system for offshore wind power foundation according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The adjustable monitoring system for the offshore wind power foundation comprises a control center, a data monitoring module and a sensor module, wherein the control center is connected with the data monitoring module, the control center receives monitoring data from the data monitoring module, and the sensor module is connected with the data monitoring module through an electric signal;
the monitoring module comprises a bolt stress sensor, a stress sensor and a pressure sensor, wherein a main rod of the offshore wind power foundation consists of a plurality of sections of fixed rods, two adjacent fixed rods are connected through flange bolts, the bolt stress sensor is fixed at the flange bolt connection part and is used for detecting wind pressure on the side face of the fixed rods, the stress sensor is arranged at an inclined strut part between the main rod of the offshore wind power foundation and a base and is used for detecting stress of the main rod on the base, the pressure sensor is arranged inside the base of the offshore wind power foundation, the base is hollow, the pressure sensor is arranged on the inner wall of the base, and a plurality of pressure sensors are arranged along the inner wall of the base and are used for detecting the pressure on the inclined side of the base;
the data monitoring module comprises three current detectors which are respectively connected with the bolt stress sensor, the stress sensor and the pressure sensor, and also comprises a direct current motor 3 and a travel switch 4, wherein the travel switch 4 is opened intermittently by the direct current motor 3.
The bolt stress sensor, the stress sensor and the pressure sensor are connected in parallel, and are connected in series with the direct current motor and the travel switch 4 after being connected in parallel.
The method is characterized in that the method comprises the steps of monitoring the safety of a wind power foundation at sea by mainly adopting three sensors at different positions, such as a main rod and a base of the wind power foundation and a diagonal brace, transmitting data to a control station on land in real time by using the sensors at the three different positions, wherein the transmission data is large, the transmission quantity of a submarine optical cable is limited, a certain time delay is caused, and meanwhile, workers at the control station need to integrate the data, and then a large amount of analysis is performed.
Specifically, the output voltage of the output power supply is 220V, and the voltage is stabilized.
Specifically, the output end of the direct current motor 3 is fixed with a cam 6, the cam 6 can be in interference with the travel switch 4 at the maximum diameter, and the direct current motor is fixed at a control center.
Specifically, the rotation speed of the direct current motor is increased by 1-2 times when the voltage at two ends of the direct current motor is increased by 2-3 v.
Specifically, the control center includes control cabinet 1, has put control host computer 2 on the control cabinet 1, and control host computer 2 one side is equipped with and fixes on control cabinet 1 direct current motor 3, travel switch 4 one side screw fixation has backup pad 5, and backup pad 5 is fixed on control cabinet 1.
In the above embodiment, when the stormy waves are small, the surface pressure received by the bolt stress sensor, the stress sensor and the pressure sensor is small, so that the resistances of the three sensors are small, because the whole voltage is stable, the current distributed by the three sensors in parallel is large, the current at the position of the direct current motor 3 is small, and the current passing through the existing direct current motor 3 is small, the rotating speed of the direct current motor 3 is low, so that the rotating speed of the direct current motor 3 is low at the moment, and therefore, on the premise of the direct current motor 3 provided by the application, the rotating period of the cam 6 at the output end of the direct current motor is long along with the rotation of the direct current motor 3, the circuit formed by combining the whole bolt stress sensor, the pressure sensor and the travel switch 4 can be closed each time when the travel switch 4 is triggered, so that the current monitor can be switched on at intervals, and data can be sent at intervals (for about 2-5 minutes);
when the stormy waves are large, the passing current is high, the rotating speed is high, data can be sent once at intervals of 10s, so that the data can be quickly sent out, the data delay time is reduced, the analysis and arrangement time of staff is shortened, and in addition, the staff can judge the actual safety condition of the wind electric pile through the frequency of receiving the data.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The adjustable monitoring system for the offshore wind power foundation comprises a control center, a data monitoring module and a sensor module, and is characterized in that the control center is connected with the data monitoring module, receives monitoring data from the data monitoring module, and the sensor module is connected with the data monitoring module through an electric signal;
the monitoring module comprises a bolt stress sensor, a stress sensor and a pressure sensor, wherein a main rod of the offshore wind power foundation consists of a plurality of sections of fixed rods, two adjacent fixed rods are connected through flange bolts, the bolt stress sensor is fixed at the flange bolt connection part and is used for detecting wind pressure on the side face of the fixed rods, the stress sensor is arranged at an inclined strut part between the main rod of the offshore wind power foundation and a base and is used for detecting stress of the main rod on the base, the pressure sensor is arranged inside the base of the offshore wind power foundation, the base is hollow, the pressure sensor is arranged on the inner wall of the base, and a plurality of pressure sensors are arranged along the inner wall of the base and are used for detecting the pressure on the inclined side of the base;
the data monitoring module comprises three current detectors which are respectively connected with the bolt stress sensor, the stress sensor and the pressure sensor, a direct current motor and a travel switch, wherein the travel switch is intermittently opened by the direct current motor;
the bolt stress sensor, the stress sensor and the pressure sensor are connected in parallel and then connected in series with the direct current motor and the travel switch;
the output end of the direct current motor is fixed with a cam, the cam can be in interference with the travel switch at the maximum diameter, and the direct current motor is fixed at a control center;
the bolt stress sensor, the stress sensor and the pressure sensor receive the pressure from the stormy waves or the ocean currents, when the pressure is changed, the rotating speed of the direct current motor is controlled by controlling the voltage change of the direct current motor connected in series, when the rotating speed of the direct current motor is higher, the closing interval time of the travel switch is smaller, the data sending and arranging time can be allocated according to the stormy waves or the ocean currents, and the data delay time is reduced.
2. An adjustable monitoring system for an offshore wind farm foundation according to claim 1, wherein the output voltage of the output power source is 220V, the voltage being stabilized.
3. An adjustable monitoring system for an offshore wind power foundation according to claim 1, wherein the rotational speed of the dc motor is increased by a factor of 1-2 for every 2-3v increase in voltage across the dc motor.
4. The adjustable monitoring system for an offshore wind power foundation according to claim 1, wherein the control center comprises a control console, a control host is placed on the control console, the direct current motor fixed on the control console is arranged on one side of the control host, a support plate is fixed on one side of the travel switch through screws, and the support plate is fixed on the control console.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210299112.6A CN114812873B (en) | 2022-03-25 | 2022-03-25 | A monitoring system with adjustable be used for marine wind-powered electricity generation basis |
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| CN202210299112.6A CN114812873B (en) | 2022-03-25 | 2022-03-25 | A monitoring system with adjustable be used for marine wind-powered electricity generation basis |
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| CN114812873A CN114812873A (en) | 2022-07-29 |
| CN114812873B true CN114812873B (en) | 2023-08-04 |
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| CN203642870U (en) * | 2013-09-06 | 2014-06-11 | 龙源电力集团股份有限公司 | Running status monitoring system of offshore wind-power tower |
| CN206019996U (en) * | 2016-07-01 | 2017-03-15 | 苏州东菱振动试验仪器有限公司 | A kind of early warning mechanism of Wind turbines |
| CN206470003U (en) * | 2016-12-23 | 2017-09-05 | 江西飞尚科技有限公司 | A kind of offshore wind power generation basic utility automation safety monitoring assembly |
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| CN108755786A (en) * | 2018-05-31 | 2018-11-06 | 湖南工程学院 | A kind of flushing monitoring device of offshore wind farm pile foundation |
| CN112729201A (en) * | 2020-12-21 | 2021-04-30 | 湖南工程学院 | Monitoring device and monitoring method for scouring state of foundation of offshore wind power pile foundation |
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| CN114812873A (en) | 2022-07-29 |
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