CN114812873A - Adjustable monitoring system for offshore wind power foundation - Google Patents
Adjustable monitoring system for offshore wind power foundation Download PDFInfo
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- CN114812873A CN114812873A CN202210299112.6A CN202210299112A CN114812873A CN 114812873 A CN114812873 A CN 114812873A CN 202210299112 A CN202210299112 A CN 202210299112A CN 114812873 A CN114812873 A CN 114812873A
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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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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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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 is in electric signal connection with the data monitoring module; 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; the wind power generation device can be used for sending data according to the size of wind waves or ocean currents and corresponding to different interval time, data sending can be accelerated, data delay time is shortened, analysis and arrangement time of workers is shortened, and in addition, the workers can judge actual safety conditions of wind power foundations through frequency of received 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 increasing attention in recent years as a clean and renewable new energy source. Since the offshore wind resources are rich, the offshore wind power generation system has the advantages of large generating capacity, long generating time, no land occupation, large-scale development and the like, and the wind power technology is gradually extended from land to the sea. Offshore wind turbines have become a hotspot in the world's renewable energy development field.
However, since offshore wind farms are worse than the working environments of onshore wind farms, severe weather conditions such as moisture and salt spray corrosion, lightning and typhoon damage, ice, snow, sea waves, and sea impact (sea ice) may cause risks to the operation of offshore wind turbines.
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 grating sensor is widely applied in the engineering field, the technology is the most mature, but the fiber grating is fragile and is very easy to damage in a severe working environment, so that the fiber grating sensor can be used after being packaged, namely the sensor is implanted into the tower of the unit, and the technical problem that the fiber grating sensor is not easy to take out and implant again in later maintenance and repair is caused.
The method is necessary for monitoring the offshore wind power foundation, but the offshore wind wave is not fixed, sometimes the wind wave is large, sometimes the wind wave is small, sensors at three different positions on a wind power pile are all control stations for transmitting data to the land in real time, the data transmission amount is large, the transmission amount of submarine optical cables is limited, a certain time delay can be caused, meanwhile, workers of the control stations need to integrate the data, and the time and labor are wasted through a large amount of analysis.
Disclosure of Invention
The invention aims to provide an adjustable monitoring system for an offshore wind power foundation, which can be used for sending data at different intervals according to the size of wind waves or ocean currents, can accelerate data sending, reduce data delay time and reduce analysis and sorting time of workers, and can judge the actual safety condition of the wind power foundation by the frequency of data received by the workers.
In order to achieve the purpose, the invention provides the following technical scheme: an adjustable monitoring system for an 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, receives monitoring data from the data monitoring module, and is in electric signal connection with the data monitoring module;
the monitoring module comprises a bolt stress sensor, a stress sensor and a pressure sensor, the main rod of the offshore wind power foundation consists of a plurality of sections of fixed rods, two adjacent fixed rods are connected by adopting flange bolts, the bolt stress sensor is fixed at the flange bolt connection part and used for detecting the wind pressure on the side surface of the vertical rod, the stress sensor is installed at an inclined strut part between the main rod of the offshore wind power foundation and the base and used for detecting the stress of the main rod on the base, the pressure sensor is installed inside the base of the offshore wind power foundation, the base is hollow, the pressure sensor is installed on the inner wall of the base, and a plurality of pressure sensors are arranged along the inner wall of the base and used for detecting the pressure on the inclined side of the base;
the data monitoring module comprises three current detection meters, the three current detection meters are respectively connected with the bolt stress sensor, the stress sensor and the pressure sensor, the data monitoring module further comprises a direct current motor and a travel switch, and 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.
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 is positioned at the position where the cam can be abutted against the travel switch at the maximum diameter, and the direct current motor is fixed at a control center.
Preferably, the rotating 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.
Adopt above-mentioned technical scheme:
preferably, the control center includes the control cabinet, has placed the main control system on the control cabinet, and main control system one side is equipped with to be fixed on the control cabinet direct current motor, travel switch one side screw fixation has the backup pad, and the backup pad is fixed on the control cabinet.
The invention has the beneficial effects that: this application is through being located the bolt stress sensor on the three position respectively, stress transducer, pressure transducer accepts the pressure that comes from stormy waves or ocean current, when pressure changes, the voltage variation of the DC motor of accessible control series connection, and then control DC motor's rotational speed, when DC motor rotational speed is big more, travel switch's closure interval time is less, consequently can be according to the size of stormy waves or ocean current and correspond different interval time and send data, can accelerate data transmission, reduce data delay time, reduce the time of staff's analysis and arrangement, the staff can judge the actual safety condition on wind-powered electricity generation basis through the frequency of receiving data in addition.
Drawings
FIG. 1 is a schematic structural diagram of an adjustable monitoring system for an offshore wind power foundation provided by the invention;
FIG. 2 is a schematic circuit diagram of an embodiment of an adjustable monitoring system for an offshore wind power foundation provided by the invention;
fig. 3 is a schematic view of a connection structure of a direct current motor and a travel switch of an adjustable monitoring system for an offshore wind power foundation provided by the invention.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to 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, receives monitoring data from the data monitoring module, and is in electric signal connection with the data monitoring module;
the monitoring module comprises a bolt stress sensor, a stress sensor and a pressure sensor, the main rod of the offshore wind power foundation consists of a plurality of sections of fixed rods, two adjacent fixed rods are connected by adopting flange bolts, the bolt stress sensor is fixed at the flange bolt connection part and used for detecting the wind pressure on the side surface of the vertical rod, the stress sensor is installed at an inclined strut part between the main rod of the offshore wind power foundation and the base and used for detecting the stress of the main rod on the base, the pressure sensor is installed inside the base of the offshore wind power foundation, the base is hollow, the pressure sensor is installed on the inner wall of the base, and a plurality of pressure sensors are arranged along the inner wall of the base and used for detecting the pressure on the inclined side of the base;
the data monitoring module comprises three current detection meters, the three current detection meters are respectively connected with the bolt stress sensor, the stress sensor and the pressure sensor, the data monitoring module further comprises a direct current motor 3 and a travel switch 4, and the travel switch 4 is intermittently opened by the direct current motor 3.
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 4.
Because the sea waves are not fixed, sometimes the waves are larger, sometimes the waves are smaller, at present, the safety monitoring of the sea wind power foundation mainly adopts sensors at three different positions for monitoring, for example, a main rod and a base of the wind power foundation are also provided with inclined struts, for the sensors at three different positions, the data are transmitted to the control station on the land in real time, the transmission data volume is large, because the transmission quantity of the submarine optical cable is limited, a certain time delay is caused, meanwhile, the data needs to be integrated by the staff of the control station, and the data is analyzed in a large quantity, so that the time and the labor are wasted, the applicant believes that it is possible to transmit data at longer intervals when there are small waves or currents, when the wind waves are large, the data sending time can be shortened, so that the data sending and arranging time can be allocated, the data delay time is shortened, and meanwhile, the actual safety condition of the wind power pile can be judged according to the frequency of received data.
Specifically, the output voltage of the output power supply is 220V, which stabilizes the voltage.
Specifically, a cam 6 is fixed at the output end of the direct current motor 3, the cam 6 is positioned at the maximum diameter and can be abutted against the travel switch 4, and the direct current motor is fixed at a control center.
Specifically, the rotating 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, control center includes control cabinet 1, has placed control host 2 on the control cabinet 1, and control host 2 one side is equipped with to be fixed 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 wind waves are small, the surface pressures received by the bolt stress sensor, the stress sensor, and the pressure sensor are 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 rotation speed is low, so that the rotation speed of the dc motor 3 is low at this time, and therefore, under the premise of the dc motor 3 provided in the present application, along with the rotation of the dc motor 3, the rotation period of the cam 6 at the output end is long, when the travel switch 4 is triggered each time, the whole circuit formed by the bolt stress sensor, the pressure sensor and the travel switch 4 can be closed, therefore, the current monitor can be switched on at certain intervals, and data can be sent at certain intervals (such as about 2-5 minutes);
when the stormy waves are large, the passing current is large, the rotating speed is high, data can be sent at intervals of 10s, the data can be sent out rapidly, the data delay time is shortened, the analysis and arrangement time of workers is shortened, and the actual safety condition of the wind power pile can be judged by the workers through the frequency of the received data.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 (5)
1. An adjustable monitoring system for 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 in electric signal connection with the data monitoring module;
the monitoring module comprises a bolt stress sensor, a stress sensor and a pressure sensor, the main rod of the offshore wind power foundation consists of a plurality of sections of fixed rods, two adjacent fixed rods are connected by adopting flange bolts, the bolt stress sensor is fixed at the flange bolt connection part and used for detecting the wind pressure on the side surface of the vertical rod, the stress sensor is installed at an inclined strut part between the main rod of the offshore wind power foundation and the base and used for detecting the stress of the main rod on the base, the pressure sensor is installed inside the base of the offshore wind power foundation, the base is hollow, the pressure sensor is installed on the inner wall of the base, and a plurality of pressure sensors are arranged along the inner wall of the base and used for detecting the pressure on the inclined side of the base;
the data monitoring module comprises three current detection meters, the three current detection meters are respectively connected with the bolt stress sensor, the stress sensor and the pressure sensor, the data monitoring module further comprises a direct current motor and a travel switch, and 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.
2. The adjustable monitoring system for offshore wind power foundation according to claim 1, wherein the output voltage of the output power supply is 220V, a stable voltage.
3. The adjustable monitoring system for offshore wind power foundation according to claim 1, wherein a cam is fixed at the output end of the direct current motor, the cam is positioned at the maximum diameter and can be abutted against the travel switch, and the direct current motor is fixed at a control center.
4. The adjustable monitoring system for offshore wind power foundation according to claim 1, wherein the rotation speed of the DC motor is increased by 1-2 times for every 2-3v increase of the voltage across the DC motor.
5. The adjustable monitoring system for offshore wind power foundation according to claim 1, wherein the control center comprises a console, a control host is placed on the console, the direct current motor fixed on the console is arranged on one side of the control host, and a support plate is fixed on one side of the travel switch through screws and fixed on the console.
Priority Applications (1)
| 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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| Application Number | Priority Date | Filing Date | Title |
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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 true CN114812873A (en) | 2022-07-29 |
| CN114812873B CN114812873B (en) | 2023-08-04 |
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| CN206772282U (en) * | 2017-06-12 | 2017-12-19 | 中国三峡新能源有限公司 | Offshore wind power foundation absolute settlement monitoring device |
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| CN113431108A (en) * | 2021-07-30 | 2021-09-24 | 华能烟台新能源有限公司 | Ocean wind power foundation safety monitoring platform and monitoring method |
| CN113551829A (en) * | 2021-07-20 | 2021-10-26 | 中国海洋大学 | Scouring monitoring device and scouring monitoring method for offshore wind turbine foundation structure |
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2022
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Patent Citations (11)
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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 |
| CN113110246A (en) * | 2021-05-18 | 2021-07-13 | 山东建筑大学 | Offshore wind power generation infrastructure safety monitoring device |
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| CN114812873B (en) | 2023-08-04 |
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