CN114412722A - Safety comprehensive monitoring system for offshore floating type fan platform - Google Patents
Safety comprehensive monitoring system for offshore floating type fan platform Download PDFInfo
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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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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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
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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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- 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
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- 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
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- 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
- Y02E10/727—Offshore wind turbines
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Abstract
The invention belongs to the technical field of platform safety monitoring, and particularly relates to a safety comprehensive monitoring system for an offshore floating type fan platform. The system comprises a stress strain monitoring subsystem, a vibration monitoring subsystem, a motion response monitoring subsystem, a corrosion monitoring subsystem, an air gap monitoring subsystem, a data exchange instrument and a power supply module. According to the invention, monitoring subsystems of various floating wind power platforms are integrated into the same monitoring system, so that comprehensive monitoring on stress strain, integral and local vibration, platform motion response, corrosion and air gaps of the floating wind power platforms can be realized. The relevant technical indexes of the floating type fan structure can be compared and analyzed by combining a database established based on monitoring data and a calculation model, and powerful data support is provided for the evaluation of platform structure safety, fatigue damage, structural strength and the like.
Description
Technical Field
The invention belongs to the technical field of platform safety monitoring, and particularly relates to a safety comprehensive monitoring system for an offshore floating type fan platform.
Background
The offshore floating type wind turbine platform is an offshore structure and is a novel power generation device. Due to the special working environment, the floating type wind turbine platform is continuously subjected to various environmental load effects such as wind, wave and flow and the like in the long-term service process, and meanwhile, the floating type wind turbine platform is influenced by various adverse factors such as environmental corrosion, marine organism adhesion, member defects, material defects and the like, and the structural strength and the rigidity of the floating type wind turbine platform are gradually attenuated. The failure damage of the floating fan platform structure not only causes direct and significant economic loss and casualties, but also can cause serious environmental pollution and social and political impact. Therefore, the problems of improving the reliability of the floating fan platform and the equipment and ensuring the safety of the ocean operation are very important, and the safety monitoring and reliability evaluation of the floating fan platform structure become very important subjects.
The actual working stress level of the platform can be reflected through stress-strain monitoring, so that objective assessment can be made on a platform design model and corresponding specifications, possible parts and degree of structural damage can be diagnosed by combining mechanical analysis, and overall safety assessment of the platform can be made. The vibration characteristic of the platform can influence the running state of the whole floating wind power equipment, so that the generating capacity and the safety are influenced. Motion response is an important parameter in platform design and unit safety assurance. Meanwhile, the low-frequency motion of the platform is a key factor for correctly estimating the restoring force of the mooring system and designing a dynamic cable. The corrosion can seriously affect the mechanical property of the steel structure material, reduce the structural strength and cause safety accidents. The safety of a platform structure and platform personnel is related to the quality of the performance of the air gap of the platform, the air gap has important significance in structural design, and meanwhile, the design of the air gap is directly related to the difficulty and cost of platform construction. Therefore, a system for the comprehensive safety monitoring of the offshore floating wind turbine platform is urgently needed.
Disclosure of Invention
The invention aims to provide a safety comprehensive monitoring system for an offshore floating type wind turbine platform.
A safety comprehensive monitoring system for an offshore floating type fan platform comprises a stress strain monitoring subsystem, a vibration monitoring subsystem, a motion response monitoring subsystem, a corrosion monitoring subsystem, an air gap monitoring subsystem, a data exchange instrument and a power supply module;
the stress-strain monitoring subsystem comprises a fiber bragg grating strain sensor and a temperature compensation sensor; the fiber bragg grating strain sensor and the temperature compensation sensor are arranged at a stress-strain monitoring position of the offshore floating type fan platform, and a high-stress area and a fatigue strength attention position are selected by analyzing a model at the stress-strain monitoring position of the offshore floating type fan platform; the fiber bragg grating strain sensor and the temperature compensation sensor transmit acquired data to the data exchange instrument through the demodulator;
the vibration monitoring subsystem comprises a pressure-resistant watertight shell, an acceleration sensor and a signal acquisition control circuit; the acceleration sensor and the signal acquisition control circuit are arranged at the position of a tower drum vibration measuring point of the offshore floating type wind turbine platform together, and the position of the tower drum vibration measuring point of the offshore floating type wind turbine platform is determined by modal analysis of the offshore floating type wind turbine platform; the acceleration sensor is used for acquiring an acceleration signal; an output signal conditioner in the signal acquisition control circuit mainly realizes the functions of signal amplification and anti-aliasing filtering, and an A/D converter and a main control chip are responsible for acquisition, processing and exchange of signals; the pressure-resistant watertight shell is arranged outside the acceleration sensor and the signal acquisition control circuit and used for protecting the whole terminal from working normally in an underwater or wet position; the signal acquisition control circuit is directly connected with the data exchange instrument through a watertight plug-in and a watertight cable;
the motion response monitoring subsystem comprises an antenna, a GNSS and an IMU; the GNSS and the IMU are arranged at the bottom of a tower of the offshore floating wind turbine platform; the antenna is arranged on a stand column deck of the offshore floating type wind turbine platform; the GNSS obtains high-precision RTK information by using satellite-station difference through an antenna and transmits the high-precision RTK information to the IMU, the IMU outputs motion monitoring information of the offshore floating wind power platform after resolving, the motion monitoring information comprises acceleration, angular velocity and GPS information of the offshore floating wind power platform, and the IMU transmits the motion monitoring information of the offshore floating wind power platform to the data exchange instrument;
the corrosion monitoring subsystem comprises a corrosion sensor and a corrosion potential acquisition instrument; the corrosion sensor is arranged at the position of a corrosion monitoring point of the offshore floating type fan platform and comprises a splashing area of the offshore floating type fan platform, a splashing area of a fan bottom stand column and a splashing area of a buoyancy tank; the corrosion potential acquisition instrument monitors the corrosion rate of the steel plate through the potential difference change of the corrosion sensor and transmits data to the data exchange instrument;
the air gap monitoring subsystem comprises a camera and a video acquisition instrument; the video camera and the video acquisition instrument are connected by adopting an SPI (serial peripheral interface), and the video acquisition instrument and the data exchange instrument are connected by a network cable; the camera is arranged at the bottom of an upper cross brace of the offshore floating type fan platform, and the arrangement in the wave-facing direction of the main wave direction is selected;
the power supply module is used for supplying power to the whole offshore floating type fan platform safety comprehensive monitoring system; the data switch can transmit data back to the land server through the undersea optical fiber.
Furthermore, the demodulator, the corrosion potential collector, the video collector and the data exchanger are all designed with corresponding special monitoring system cabinet installation protection.
Furthermore, the stress-strain monitoring position of the offshore floating type wind turbine platform comprises a connecting position of a horizontal cross brace and an upright column, a connecting position of a floating body under the upright column and a corner of a ballast water tank, a position of a chain stopper of a deck anchor chain, and a connecting position of the bottom of a tower cylinder and the upright column.
Furthermore, the fiber grating strain sensor and the temperature compensation sensor adopt stainless steel as packaging materials, and the installation mode is current welding.
The invention has the beneficial effects that:
according to the invention, monitoring subsystems of various floating wind power platforms are integrated into the same monitoring system, so that comprehensive monitoring on stress strain, integral and local vibration, platform motion response, corrosion and air gaps of the floating wind power platforms can be realized. The relevant technical indexes of the floating type fan structure can be compared and analyzed by combining a database established based on monitoring data and a calculation model, and powerful data support is provided for the evaluation of platform structure safety, fatigue damage, structural strength and the like.
Drawings
FIG. 1 is a schematic view of the monitoring position of the stress-strain monitoring subsystem according to the present invention.
FIG. 2 is a schematic diagram of the vibration monitoring subsystem of the present invention.
FIG. 3 is a schematic diagram of a motion response monitoring subsystem of the present invention;
FIG. 4 is a schematic view of the location of corrosion monitoring points in the present invention.
FIG. 5 is a schematic view of the position of the air gap measurement point in the present invention.
Fig. 6 is a schematic diagram of a wiring scheme in the present invention.
Fig. 7 is a schematic diagram of the overall system operating framework of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention aims to provide a system for comprehensively monitoring the safety of an offshore floating wind turbine platform aiming at the safe multi-azimuth joint monitoring of the offshore floating wind turbine platform. The method can realize the monitoring of stress strain, integral and local vibration of the platform, platform motion response, corrosion and air gaps, and can provide powerful data support for the evaluation of platform structure safety, fatigue damage, structural strength and the like.
A safety comprehensive monitoring system for an offshore floating type fan platform comprises a stress strain monitoring subsystem, a vibration monitoring subsystem, a motion response monitoring subsystem, a corrosion monitoring subsystem, an air gap monitoring subsystem, a data exchange instrument and a power supply module;
the stress-strain monitoring subsystem comprises a fiber bragg grating strain sensor and a temperature compensation sensor; the fiber bragg grating strain sensor and the temperature compensation sensor are arranged at a stress-strain monitoring position 1 of the offshore floating type wind turbine platform, and a high-stress area and a fatigue strength attention position are selected by analyzing a model at the stress-strain monitoring position 1 of the offshore floating type wind turbine platform; the fiber bragg grating strain sensor and the temperature compensation sensor transmit acquired data to the data exchange instrument through the demodulator;
the vibration monitoring subsystem comprises a pressure-resistant watertight shell 2, an acceleration sensor 3 and a signal acquisition control circuit 4; the acceleration sensor 3 and the signal acquisition control circuit 4 are arranged at a tower drum vibration measuring point position 10 of the offshore floating type wind turbine platform together, and the tower drum vibration measuring point position 10 of the offshore floating type wind turbine platform is determined according to modal analysis of the offshore floating type wind turbine platform; the acceleration sensor 3 is used for acquiring an acceleration signal; the output signal conditioner in the signal acquisition control circuit 4 mainly realizes the functions of signal amplification and anti-aliasing filtering, and the A/D converter and the main control chip are responsible for the acquisition, processing and exchange of signals; the pressure-resistant watertight shell 2 is arranged outside the acceleration sensor 3 and the signal acquisition control circuit 4 and is used for protecting the whole terminal from working normally in an underwater or wet position; the signal acquisition control circuit 4 is directly connected with the data exchange instrument through the watertight plug-in 5 and the watertight cable 12;
the motion response monitoring subsystem comprises an antenna 6, a GNSS (7) and an IMU (8); the GNSS (7) and the IMU (8) are installed at the bottom of a tower of the offshore floating wind turbine platform; the antenna 6 is arranged on a stand column deck of the offshore floating wind turbine platform; the GNSS (7) obtains high-precision RTK information by using satellite-station difference through an antenna 6 and transmits the high-precision RTK information to the IMU (8), the IMU (8) outputs motion monitoring information of the offshore floating wind power platform after resolving, the motion monitoring information comprises acceleration, angular velocity and GPS information of the offshore floating wind power platform, and the IMU (8) transmits the motion monitoring information of the offshore floating wind power platform to a data exchanger;
the corrosion monitoring subsystem comprises a corrosion sensor and a corrosion potential acquisition instrument; the corrosion sensor is arranged at a corrosion monitoring point position 9 of the offshore floating type fan platform and comprises a splashing area of the offshore floating type fan platform, a fan bottom stand column splashing area and a buoyancy tank splashing area; the corrosion potential acquisition instrument monitors the corrosion rate of the steel plate through the potential difference change of the corrosion sensor and transmits data to the data exchange instrument;
the air gap monitoring subsystem comprises a camera and a video acquisition instrument; the video camera and the video acquisition instrument are connected by adopting an SPI (serial peripheral interface), and the video acquisition instrument and the data exchange instrument are connected by a network cable; the camera is arranged at an air gap measuring point position 11 at the bottom of an upper cross brace of the offshore floating type wind turbine platform, and the arrangement in the wave-facing direction of the main wave direction is selected;
the power supply module is used for supplying power to the whole offshore floating type fan platform safety comprehensive monitoring system; the data switch can transmit data back to the land server through the undersea optical fiber.
According to the invention, monitoring subsystems of various floating wind power platforms are integrated into the same monitoring system, so that comprehensive monitoring on stress strain, integral and local vibration, platform motion response, corrosion and air gaps of the floating wind power platforms can be realized. And the related technical indexes of the floating fan structure can be compared and analyzed by combining a database established based on the monitoring data and a calculation model.
The stress-strain monitoring subsystem can reflect the actual working stress level of the platform through stress-strain monitoring, so that objective evaluation is made on a platform design model and corresponding specifications, and the stress-strain monitoring subsystem has important guiding significance for selecting some important design parameters under specific sea areas and geological conditions and provides powerful scientific support for the optimal design of platform reliability. The system can timely alarm sudden disasters in long-term monitoring, can diagnose possible positions and degrees of structural damage by combining mechanical analysis, makes overall safety assessment of the platform, and can help make reasonable detection and maintenance plans and save the running cost of the platform.
The vibration monitoring subsystem can determine the dynamic characteristics (natural frequency and damping) and the vibration law of the platform structure at different service stages by monitoring the platform vibration, and provides a basis for analyzing the coupling effect between the platform structure and the wind turbine generator, the tower and the mooring system.
The motion response monitoring subsystem provides important parameters for the design of the floating wind power platform and the safety guarantee of the unit through monitoring the motion response. And (4) correctly estimating the restoring force of the mooring system and optimizing the design of the dynamic cable according to the low-frequency motion of the platform.
The corrosion monitoring subsystem tracks the corrosion condition of the material in the marine environment, grasps the corrosion rule, predicts the service life of the material, and avoids the damage caused by corrosion, thereby ensuring the safety of the whole platform. Meanwhile, according to the corrosion information and the corrosion rule monitored for a long time, a necessary maintenance plan can be optimized, and unnecessary inspection and maintenance are reduced.
Due to the strong nonlinear characteristic of air gap response, the simulation precision of the existing numerical calculation method is difficult to meet the engineering requirement, and model test or field measurement is an important research means of air gap response. The airgap monitoring subsystem may provide a large amount of data support for subsequent related research.
Example 1:
the system for comprehensively monitoring the safety of the offshore floating type fan platform comprises a stress-strain monitoring subsystem, a vibration monitoring subsystem, a motion response monitoring subsystem, a corrosion monitoring subsystem, an air gap monitoring subsystem, a data exchange instrument, a monitoring host, a display instrument, a power supply module and a data transmission device. The stress-strain monitoring subsystem consists of a fiber grating strain sensor, a transmission optical fiber and a demodulator and is used for acquiring and transmitting strain data. The vibration monitoring subsystem consists of an acceleration sensor, a signal acquisition control circuit and a pressure-resistant watertight shell and is used for acquiring, amplifying, filtering, transmitting and exchanging acceleration signals. The motion response monitoring subsystem consists of a fiber optic gyroscope Inertial Measurement Unit (IMU) and a GNSS (comprising two antennae), the GNSS obtains high-precision RTK information by utilizing satellite station difference and transmits the high-precision RTK information to the IMU, and the IMU outputs monitoring information of the floating wind power platform after resolving; the corrosion monitoring subsystem consists of a corrosion sensor, a corrosion potential acquisition instrument and a pressure-resistant electronic sealed cabin, monitors the corrosion rate of the steel plate by adopting an electrochemical noise method through potential difference change, and transmits data to the data converter. The air gap monitoring subsystem adopts a professional camera and a video acquisition instrument, data are transmitted to a data converter through the SPI and a network cable, and the data converter converts the data adopted by each subsystem and transmits and stores the converted data to a land monitoring host and a display instrument through submarine optical fibers.
The invention also includes such features:
1. the strain sensitivity of a fiber grating sensor of the stress-strain monitoring subsystem is 1.4 pm/. mu.epsilon, the working temperature range is-40-120 ℃, the strain resolution is +/-1. mu.epsilon, the strain range is +/-2,500. mu.epsilon, a temperature compensation sensor needs to be placed, the packaging material of the sensor is 304 stainless steel, and the installation mode is current welding. The stress-strain monitoring position of the platform mainly selects a high-stress area and a fatigue strength concerned position for model analysis through finite element software. The data transmission frequency is set to be 20ms, the data type is a floating point type, and the sensor transmits the acquired data to the data exchanger through the demodulator.
2. The vibration monitoring subsystem measuring terminal is mainly composed of a three-dimensional ADXL 356-based sensor, a signal acquisition control circuit and a pressure-resistant watertight shell. The range of the three-dimensional sensor is + -10g, the resolution is 0.02mg, the bandwidth is 2.4kHZ, and the dynamic range is 110 dB. An output signal conditioner in the signal acquisition control circuit mainly realizes the functions of signal amplification and anti-aliasing filtering, and the A/D converter and the main control chip are responsible for signal acquisition, processing and exchange. The vibration test is divided into integral vibration and tower drum vibration test, and the arrangement position is determined according to the modal analysis of finite element software on the floating type fan platform. The terminal receives external power supply and outputs measurement data through the same watertight patch port. The vibration measurement data frequency is 10ms, and the data type is a floating point type. And a wired data transmission mode is adopted, and the watertight cable is directly connected with the data exchange instrument.
3. The platform motion state sub-monitoring system consists of two parts, namely an optical fiber gyroscope inertia measurement device (IMU) and a GNSS (comprising two antennas), and the equipment parameters are as follows: horizontal 0.1 degree, heading 0.5 degree sec phi (phi is local latitude), acceleration 0.005m/s2, angular velocity 0.05 degree/h, velocity 0.05m/s, angular velocity measurement range +/-200 degree/s, linear acceleration measurement range-10 g to +10g, and sampling frequency 100 HZ. The monitoring equipment is installed at the bottom of the tower, the antenna is placed on a deck of the upright column, the GNSS obtains high-precision RTK information by utilizing the satellite station difference and transmits the high-precision RTK information to the IMU, the IMU outputs monitoring information (an accelerometer, a fiber-optic gyroscope and a GPS) of the floating wind power platform after resolving, and motion information can also be output by jointly resolving through a reference station installed on the land and a mobile station fixed on the wind power platform. The transmission frequency of the motion response monitoring data is 10ms, and the data type is a floating point type. The motion information is transmitted to the data exchange instrument through a data transmission line.
4. The corrosion monitoring subsystem consists of a corrosion sensor and a corrosion potential acquisition instrument, and is installed by a pressure-resistant electronic sealed cabin, and indexes of the subsystem are as follows: the in-situ corrosion potential signal is 0.001V, the in-situ corrosion current signal is 0.000001A, the corrosion speed precision is 0.001mm/a, and the corrosion signal sampling frequency is 0.25 Hz. The system monitoring main positions are a splashing area, a fan stand column and a buoyancy tank splashing area. The data transmission frequency is set to be 50ms, and the data type is a floating point type. The corrosion sensor is connected to the data exchanger by a data transmission line.
5. The air gap monitoring subsystem is characterized in that a professional camera is adopted, a professional camera and a video acquisition instrument are connected through an SPI (serial peripheral interface), the video acquisition instrument and a data conversion instrument are connected through a network cable, and real-time observation data are directly connected into a platform signal comprehensive conversion unit. The air gap monitoring position is the bottom of a cross brace on the platform, the main wave direction is selected, and 2 cameras are arranged in the wave-facing direction. The data transmission frequency is set to be 1s, and the data type is integer.
6. All monitoring data of the floating type fan platform are connected with the monitoring host and the display instrument through the data acquisition and exchange instrument, and then the data can be transmitted back to the land server through the tower bottom data exchange instrument and the submarine optical fiber. The whole system is supplied with electricity by adopting a marine cable, the power supply voltage is 220V, the current is not more than 5A, namely the total power supply power is not more than 1100W, the power supply cable is supposed to adopt the marine cable, and the socket is supposed to adopt an aviation socket with the waterproof grade of IP 67.
7. The demodulator, the corrosion potential tester, the video acquisition instrument, the data acquisition and exchange instrument, the monitoring host and the display equipment are all designed with corresponding special monitoring system cabinet installation protection.
In the embodiment, 22 positions in the stress-strain monitoring system of the system shown in fig. 1 respectively comprise a connecting part 2 of a horizontal cross brace and an upright post, a connecting part 3 of a floating body under the upright post and a corner of a ballast water tank, a connecting part 9 of a deck anchor chain stopper, and a connecting part 8 of the bottom of a tower barrel and two layers of upright posts. Current-welded 304 stainless steel is used as the sensor packaging material, and the watertight optical fiber is accessed from the sensor in the packaging module to the demodulator in the special monitoring system cabinet.
With reference to fig. 2, the vibration monitoring system measurement terminal is mainly composed of a pressure-resistant watertight shell 2, a three-dimensional ADXL 356-based sensor 3 and a signal acquisition control circuit 4, the three-dimensional ADXL 356-based sensor 3 is responsible for acquiring acceleration signals, an output signal conditioner in the signal acquisition control circuit 4 mainly achieves signal amplification and anti-aliasing filtering functions, an a/D converter and a main control chip are responsible for acquiring, processing and exchanging signals, the pressure-resistant watertight shell 2 protects the whole terminal to normally work underwater or in a wet position, and a watertight plug-in 5 also ensures that the terminal is waterproof. The terminal is arranged by combining the position of the tower cylinder vibration measuring point in the figure 6, the overall monitoring needs to be arranged by combining the overall model modal analysis, and the terminal is connected with the data exchange instrument by a data transmission line.
The platform motion state monitoring system consists of two parts, namely an IMU and a GNSS (including two antennas), and with reference to the figure 3, the motion response monitoring equipment GNSS and the IMU are arranged at the bottom of the tower, and the antenna 6 is placed on a deck of the upright post. The system working principle is that the GNSS obtains high-precision RTK information by using satellite-station difference and transmits the high-precision RTK information to the IMU, the IMU outputs monitoring information (an accelerometer, a fiber-optic gyroscope and a GPS) of the floating wind power platform after resolving, and then data are transmitted to the data exchange center.
The corrosion monitoring system consists of a corrosion sensor and a corrosion potential acquisition instrument and is installed by a pressure-resistant electronic sealed cabin. In combination with fig. 4, the corrosion sensor is installed at the corrosion measuring point position 9, and the main monitoring position is a splash zone, which is 8 positions in the embodiment, including the position of the upright splash zone 3 at the bottom of the fan, the positions of the other two upright splash zones 1, and the positions of the three buoyancy tanks 1. The system adopts an electrochemical noise method, monitors the corrosion rate of the steel plate through potential difference change, accesses a data sensor into a corrosion potential acquisition instrument in a special monitoring system cabinet, and transmits data into a data exchange center.
The air gap monitoring system comprises professional appearance and the video acquisition appearance of making a video recording, adopts the SPI to connect between the two, combines figure 5 to the installation of professional appearance of making a video recording, and the position is stull bottom on the platform, selects the dominant wave direction, and 2 cameras are arranged to the direction of surfing, and the video acquisition appearance is arranged in special monitoring system rack. The data is transmitted to the video acquisition instrument and then transmitted to the data exchange center by the network cable.
And (3) all monitoring subsystems are installed and accessed to the data switching center, and the specific wiring scheme is combined with the scheme shown in figure 6.
Referring to fig. 7, the monitoring host, the data acquisition and exchange instrument, the display instrument and other devices needing power supply are supplied with power, the voltage is 220V, the current is not more than 5A, namely the total power supply power is not more than 1100W, the power supply line is supposed to adopt a marine cable, and the socket is supposed to adopt an aviation plug with the waterproof grade of IP 67. And debugging the system after power supply.
The system for the comprehensive safety monitoring of the offshore floating wind turbine platform of the embodiment is used and measured according to the following procedures:
firstly, installing a fiber bragg grating strain sensor and a temperature compensation sensor at a strain measuring point position 1, and packaging and connecting the fiber bragg grating strain sensor and the temperature compensation sensor with a demodulator; the system comprises an acceleration sensor terminal, an IMU + GNSS and an antenna thereof, a corrosion sensor, a camera and the like which are arranged at corresponding measuring point positions, wherein the corrosion sensor and the camera are respectively and correspondingly connected with a corrosion potential acquisition instrument and a video acquisition instrument, all monitoring subsystems are connected with a data exchange center after being installed, the data exchange center is connected with a measurement and control host and a display instrument, the instrument is powered on, and all subsystems are controlled and acquired through a measurement and control host program.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A safety comprehensive monitoring system for an offshore floating type fan platform is characterized by comprising a stress strain monitoring subsystem, a vibration monitoring subsystem, a motion response monitoring subsystem, a corrosion monitoring subsystem, an air gap monitoring subsystem, a data exchange instrument and a power supply module;
the stress-strain monitoring subsystem comprises a fiber bragg grating strain sensor and a temperature compensation sensor; the fiber bragg grating strain sensor and the temperature compensation sensor are arranged at a stress-strain monitoring position (1) of the offshore floating type wind turbine platform, and the stress-strain monitoring position (1) of the offshore floating type wind turbine platform selects a high-stress area and a fatigue strength attention position through model analysis; the fiber bragg grating strain sensor and the temperature compensation sensor transmit acquired data to the data exchange instrument through the demodulator;
the vibration monitoring subsystem comprises a pressure-resistant watertight shell (2), an acceleration sensor (3) and a signal acquisition control circuit (4); the acceleration sensor (3) and the signal acquisition control circuit (4) are arranged at a tower drum vibration measuring point position (10) of the offshore floating type wind turbine platform together, and the tower drum vibration measuring point position (10) of the offshore floating type wind turbine platform is determined according to modal analysis of the offshore floating type wind turbine platform; the acceleration sensor (3) is used for acquiring an acceleration signal; an output signal conditioner in the signal acquisition control circuit (4) mainly realizes the functions of signal amplification and anti-aliasing filtering, and an A/D converter and a main control chip are responsible for signal acquisition, processing and exchange; the pressure-resistant watertight shell (2) is arranged on the outer side of the acceleration sensor (3) and the signal acquisition control circuit (4) and is used for protecting the whole terminal from normally working in an underwater or wet position; the signal acquisition control circuit (4) is directly connected with the data exchange instrument through the watertight plug-in (5) and the watertight cable (12);
the motion response monitoring subsystem comprises an antenna (6), a GNSS (7) and an IMU (8); the GNSS (7) and the IMU (8) are installed at the bottom of a tower of the offshore floating wind turbine platform; the antenna (6) is arranged on a stand column deck of the offshore floating wind turbine platform; the GNSS (7) obtains high-precision RTK information by using satellite-station difference through an antenna (6) and transmits the high-precision RTK information to the IMU (8), the IMU (8) outputs motion monitoring information of the offshore floating wind power platform after resolving, the motion monitoring information comprises acceleration, angular velocity and GPS information of the offshore floating wind turbine platform, and the IMU (8) transmits the motion monitoring information of the offshore floating wind power platform to a data exchanger;
the corrosion monitoring subsystem comprises a corrosion sensor and a corrosion potential acquisition instrument; the corrosion sensor is arranged at a corrosion monitoring point position (9) of the offshore floating type fan platform and comprises a splashing area of the offshore floating type fan platform, a fan bottom upright post splashing area and a buoyancy tank splashing area; the corrosion potential acquisition instrument monitors the corrosion rate of the steel plate through the potential difference change of the corrosion sensor and transmits data to the data exchange instrument;
the air gap monitoring subsystem comprises a camera and a video acquisition instrument; the video camera and the video acquisition instrument are connected by adopting an SPI (serial peripheral interface), and the video acquisition instrument and the data exchange instrument are connected by a network cable; the camera is arranged at an air gap measuring point position (11) at the bottom of an upper cross brace of the offshore floating type wind turbine platform, and the arrangement in the wave-facing direction of the main wave direction is selected;
the power supply module is used for supplying power to the whole offshore floating type fan platform safety comprehensive monitoring system; the data switch can transmit data back to the land server through the undersea optical fiber.
2. The integrated safety monitoring system for an offshore floating wind turbine platform according to claim 1, wherein: the demodulator, the corrosion potential collector, the video collector and the data exchanger are all provided with corresponding special monitoring system cabinet installation protection.
3. The integrated safety monitoring system for an offshore floating wind turbine platform according to claim 1, wherein: the stress-strain monitoring position (1) of the offshore floating type fan platform comprises a joint of a horizontal cross brace and an upright post, a joint of a lower floating body of the upright post and a corner of a ballast water tank, a chain stopper of a deck anchor chain and a joint of the bottom of a tower barrel and the upright post.
4. The integrated safety monitoring system for an offshore floating wind turbine platform according to claim 1, wherein: the fiber grating strain sensor and the temperature compensation sensor adopt stainless steel as packaging materials, and the installation mode is current welding.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901560A (en) * | 2012-10-24 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Safe comprehensive monitoring system for structure of offshore jacket platform |
| CN110749713A (en) * | 2019-10-29 | 2020-02-04 | 大连理工大学 | Structure monitoring and marine environment monitoring system and method suitable for offshore wind turbine |
| CN111624210A (en) * | 2020-07-07 | 2020-09-04 | 江苏华淼电子科技有限公司 | Marine wind turbine tower section of thick bamboo intertidal zone corrosion detection device |
| WO2020244048A1 (en) * | 2019-06-03 | 2020-12-10 | 中国科学院南海海洋研究所 | Air-sea real-time observation buoy system employing beidou and iridium satellite communication |
| CN113530765A (en) * | 2021-08-11 | 2021-10-22 | 华能烟台新能源有限公司 | System and method for monitoring influence of earthquake on vibration of offshore wind turbine |
-
2021
- 2021-12-28 CN CN202111625210.6A patent/CN114412722B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901560A (en) * | 2012-10-24 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Safe comprehensive monitoring system for structure of offshore jacket platform |
| WO2020244048A1 (en) * | 2019-06-03 | 2020-12-10 | 中国科学院南海海洋研究所 | Air-sea real-time observation buoy system employing beidou and iridium satellite communication |
| CN110749713A (en) * | 2019-10-29 | 2020-02-04 | 大连理工大学 | Structure monitoring and marine environment monitoring system and method suitable for offshore wind turbine |
| CN111624210A (en) * | 2020-07-07 | 2020-09-04 | 江苏华淼电子科技有限公司 | Marine wind turbine tower section of thick bamboo intertidal zone corrosion detection device |
| CN113530765A (en) * | 2021-08-11 | 2021-10-22 | 华能烟台新能源有限公司 | System and method for monitoring influence of earthquake on vibration of offshore wind turbine |
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