CN116906278A - Double wind wheel floating type wind generating set monitoring control system and method - Google Patents
Double wind wheel floating type wind generating set monitoring control system and method Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 182
- 238000007667 floating Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 25
- 230000004044 response Effects 0.000 claims abstract description 8
- 238000010248 power generation Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 230000004083 survival effect Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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Classifications
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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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
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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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
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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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a monitoring control system and a method for a double wind wheel floating type wind generating set, wherein the monitoring control system comprises a real-time operation monitoring unit, a six-degree-of-freedom motion monitoring unit, a multi-axis inclination angle posture monitoring unit, a load monitoring unit, an anchor chain tension monitoring unit, a liquid leakage monitoring unit, a liquid level monitoring unit, a marine meteorological hydrologic monitoring unit and a main control unit, wherein the main control unit obtains the real-time operation state and dynamic response of the set according to data and signals collected by each monitoring unit, analyzes and judges the data and signals, and further controls the double wind wheel floating type wind generating set according to a state space model so as to enable the double wind wheel floating type wind generating set to be always under a safe operation boundary condition, thereby capturing wind energy to the maximum extent and converting the wind energy into generated energy. The intelligent control of the double wind wheel floating wind power platform is realized by systematically monitoring signals and related operation parameters of key positions of two units of the double wind wheel floating wind power generator.
Description
Technical Field
The invention relates to the technical field of offshore floating type wind power generation, in particular to a monitoring control system and a method for a double wind wheel floating type wind generating set.
Background
Since offshore wind power is generally close to an energy consumption center and wind resource conditions are superior to those of onshore wind power, utilization and development of wind power are gradually being turned from onshore to offshore and from offshore to deep open sea. At present, offshore wind power planning in China is mostly located in a region with water depth less than 50m, and individual projects reach the critical point of economy of a fixed foundation and a floating foundation. After a water depth of more than 60m, the offshore floating wind turbine will be more engineering economical than the offshore stationary wind turbine and will increasingly stand out its economic advantages as the water depth increases.
The offshore floating wind power generation unit has a plurality of advantages: the wind turbine generator is not limited by water depth, convenient to transport, more flexible in machine position deployment, capable of completing integral assembly on shore, more convenient in offshore construction and installation, capable of being completely disassembled and migrated, capable of carrying a wind turbine generator with higher power, and the like.
The double wind wheel floating wind generating set is characterized in that two wind generating sets are arranged on a floating basis and comprise two tower barrels, two hubs, two cabins and two sets of generating systems. The double wind wheel floating type wind generating set is different from a conventional offshore wind generating set and is different from an onshore wind generating set, more influencing factors exist in the safe operation of the double wind wheel floating type wind generating set, even the double wind wheel floating type wind generating set can be influenced by more extreme environmental conditions, and the related technology for systematically monitoring and controlling the double wind wheel floating type wind generating set does not exist in the offshore floating type wind generating field at present.
The operation characteristics of the wind generating set have the characteristics of complexity, multiple variables, nonlinearity, uncertainty, multiple interferences and the like, and the conventional control functions of the main control unit comprise: within the operating wind speed range, the reliable operation of the unit is ensured; in a low wind speed interval, tracking the optimal tip speed ratio and obtaining the maximum wind energy; in a high wind speed interval, keeping the output power of the unit as a rated value; torque fluctuation peak value caused by wind gusts is reduced, power output fluctuation is reduced, and blade root and tower load fluctuation is reduced; resonance is avoided; and the stability of the output voltage and frequency of the unit is maintained.
In the running process of the wind generating set, the related physical quantity is required to be measured, corresponding signals are given according to the measurement result, and the signals are transmitted to the main control unit and used as the basis for the main control unit to send out control instructions. The signals to be measured of the conventional wind turbine generator set comprise: speed signals, such as impeller speed, generator speed, etc.; temperature signals such as main bearing temperature, gearbox oil temperature, ambient temperature, etc.; position signals such as pitch angle, rotor azimuth, etc.; electrical characteristics such as grid current, voltage, electrical power, etc.; motion signals such as vibration acceleration, torque, bending moment, etc., environmental signals such as wind speed, wind direction, temperature, humidity, atmospheric pressure, etc. The double wind wheel floating wind turbine generator set is different from the single wind wheel wind turbine generator set, the RNA (Rotor/Nacell Assembly) of the upper wind turbine cabin components of the two wind turbine generator sets can stably run only by keeping the running state in synchronization, when the two wind turbine generator sets are not synchronous or one wind turbine generator set is stopped, the phenomenon of motion instability, motion response increase, load overrun and the like of the whole platform can occur, the problem that the whole platform is uncontrollable and the like is caused, and at the moment, the other wind turbine generator set also needs to be stopped. In order to realize reliable control of the double wind wheel floating type wind generating set, the key point is to solve the input problem of diversified control parameters, and to effectively fuse the systematically monitored parameter information and apply the information to the running control of the set.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a double-wind-wheel floating wind generating set monitoring control system which realizes intelligent control of a double-wind-wheel floating wind power platform by systematically monitoring signals and related operation parameters of key positions of two sets of the double-wind-wheel floating wind generating set.
The invention further aims to provide a monitoring control method for the double-wind wheel floating type wind generating set.
The aim of the invention is achieved by the following technical scheme:
a double wind wheel floating wind generating set monitoring control system, comprising:
the real-time operation monitoring unit is used for monitoring the real-time operation parameters of the power output, the rotating speed of the wind wheel and the variable pitch angle of the blades of the two units of the double wind wheel floating type wind generating set;
the six-degree-of-freedom motion monitoring unit is used for monitoring six-degree-of-freedom motions of two cabins of the double-wind wheel floating type wind generating set in real time;
the multi-axis inclination angle posture monitoring unit is used for monitoring posture change of a basic platform of the double-wind wheel floating type wind generating set;
the load monitoring unit is used for monitoring loads at the tower top and tower bottom positions of two upper tower barrels of the double wind wheel floating type wind generating set;
the anchor chain tension monitoring unit is used for monitoring the anchor chain tension of the double-wind wheel floating type wind generating set;
the liquid leakage monitoring unit is used for monitoring the liquid leakage condition of the buoyancy cabin and the pontoon of the double-wind wheel floating type wind generating set;
the liquid level monitoring unit is used for monitoring a ballast tank of the double wind wheel floating type wind generating set and outputting a liquid level real-time value;
the marine meteorological hydrologic monitoring unit is used for monitoring meteorological hydrologic data of a sea area where the double-wind wheel floating type wind generating set is located;
the main control unit is used for obtaining real-time running states and dynamic responses of the unit according to data and signals collected by the real-time running monitoring unit, the six-degree-of-freedom motion monitoring unit, the multi-axis inclination angle posture monitoring unit, the load monitoring unit, the anchor chain tension monitoring unit, the liquid leakage monitoring unit, the liquid level monitoring unit and the marine meteorological hydrologic monitoring unit, analyzing and judging the data and the signals, and controlling the double wind wheel floating type wind generating set according to the state space model to enable the double wind wheel floating type wind generating set to be always under the safe running boundary condition, so that the double wind wheels capture wind energy to the maximum extent and convert the wind energy into generated energy.
Further, the two real-time operation monitoring units are respectively arranged in two cabins of the double-wind wheel floating type wind generating set, each real-time operation monitoring unit comprises a power transmitter, a proximity switch and an angle encoder, the power transmitter is used for monitoring the generated power output of the corresponding wind wheel, the proximity switch is used for monitoring the rotating speed of the corresponding wind wheel, and the angle encoder is used for monitoring the pitch angle of the corresponding blade.
Further, the six-degree-of-freedom motion monitoring units are two, and the two six-degree-of-freedom motion monitoring units are respectively arranged in two cabins of the double-wind wheel floating type wind generating set.
Further, the multi-axis inclination angle posture monitoring unit is arranged on a tower barrel of a lower transition section of the double wind wheel floating type wind generating set; the anchor chain tension monitoring unit is arranged on an anchor chain of the double wind wheel floating type wind generating set;
further, the load monitoring unit comprises a plurality of strain gauges which are respectively arranged at the top and bottom positions of two upper tower barrels of the double wind wheel floating type wind generating set, and each strain gauge is respectively perpendicular to the cross section of the top or bottom of the tower.
Further, the liquid level monitoring unit is arranged in a ballast tank of the double-wind wheel floating type wind generating set; the marine meteorological hydrologic monitoring unit is arranged at a set distance of the surrounding sea area of the double-wind wheel floating type wind generating set, and a meteorological hydrologic sensor for collecting waves, ocean currents, humiture and atmospheric pressure is integrated on a buoy of the marine meteorological hydrologic monitoring unit.
Further, the leakage monitoring unit comprises a plurality of leakage sensing sensors which are respectively arranged in the buoyancy cabin and the pontoon.
The other object of the invention is achieved by the following technical scheme:
a control method based on the double wind wheel floating type wind generating set monitoring control system aims at normal power generation working conditions and comprises the following steps:
when the wind speed of the cabin environment is in the range from the cut-in wind speed to the cut-out wind speed, the fan reaches the start-up operation condition, the main control unit automatically judges the wind speed and the wind direction of the cabin environment of the double wind wheels and the deviation of the wind direction, if the conditions are met, a pitch command is output to a pitch system of the double wind wheel floating type wind generating set, the pitch action is executed, at the moment, monitoring data and signals of the real-time operation monitoring unit, the six-freedom-degree motion monitoring unit and the load monitoring unit are transmitted to the main control unit, the main control unit analyzes and judges the data and the signals, and if the deviation does not exceed the preset limit deviation, the main control unit controls the two sets to maintain normal power generation operation; and if the deviation exceeds the preset limit deviation, the main control unit controls the two units, so that the running state of the double wind wheels keeps synchronous and stable running.
A control method based on the double wind wheel floating type wind generating set monitoring control system aims at emergency stop working conditions and comprises the following steps:
when the six-degree-of-freedom motion response of the cabin exceeds a preset boundary value, the tower load value is abnormal, the buoyancy cabin leaks liquid abnormally, the liquid level of the ballast cabin changes, the anchor chain tension value is abnormal or the wave height value exceeds the preset boundary, the main control unit controls the two units to jump from the running state to the emergency stop state, and early warning signals or fault signals are timely given.
A control method based on the double wind wheel floating type wind generating set monitoring control system aims at extreme survival conditions and comprises the following steps:
when the marine meteorological hydrologic monitoring unit monitors that the wind direction or wave direction of the meteorological hydrologic environment changes, the main control unit controls the two units to execute the pitch-variable action, and the passive pair wind of the two units is regulated in an auxiliary mode, so that the system stability of the whole machine under the extreme survival working condition is ensured.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. aiming at the characteristics of the double wind wheel floating type wind generating set, the invention realizes the comprehensive monitoring of the main system and key structure of the set from the meteorological hydrologic environment, the running state of the set, ensures to meet the input signal requirement of the main control unit and effectively solves the problem of systematic monitoring.
2. Aiming at the characteristics of the double-wind-wheel floating wind generating set, the invention connects fault nodes which possibly cause serious problems to the safe operation of the set in series into a loop to form a set of safety chain strategy suitable for the double-wind-wheel floating wind generating set, and the basic safety bottom line of the set is ensured.
3. The invention can ensure the normal and stable operation of the unit, ensures that the double wind wheels capture wind energy to the maximum extent, and converts the wind energy into generated energy efficiently and reliably.
Drawings
Fig. 1 is a schematic structural diagram of a monitoring control system according to the present invention.
Fig. 2 is a schematic layout diagram of the monitoring control system of the present invention.
Fig. 3 is a topology of the monitoring control system of the present invention.
Fig. 4 is a schematic diagram of a monitoring control system of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Example 1:
as shown in fig. 1 to 3, the present embodiment provides a dual wind wheel floating wind generating set monitoring control system, including:
the real-time operation monitoring unit 1 is used for monitoring the real-time operation parameters of the power output, the rotating speed of the wind wheel and the variable pitch angle of the blades of two units of the double wind wheel floating type wind generating unit;
the six-degree-of-freedom motion monitoring unit 2 is used for monitoring the six-degree-of-freedom motions of the sway, the heave, the roll, the pitch and the yaw of two cabins of the double-wind wheel floating wind generating set in real time;
the multi-axis inclination angle posture monitoring unit 3 is used for monitoring posture change of a basic platform of the double wind wheel floating type wind generating set;
the load monitoring unit 4 is used for monitoring the loads at the tower top and tower bottom positions of two upper tower drums of the double wind wheel floating type wind generating set;
the anchor chain tension monitoring unit 5 is used for monitoring the anchor chain tension of the double-wind wheel floating type wind generating set;
the leakage monitoring unit 6 is used for monitoring the leakage condition of the buoyancy cabin and the pontoon of the double-wind wheel floating type wind generating set;
the liquid level monitoring unit 7 is used for monitoring a ballast tank of the double wind wheel floating type wind generating set and outputting a liquid level real-time value;
the marine meteorological hydrologic monitoring unit 8 is used for monitoring meteorological hydrologic data of a sea area where the double wind wheel floating type wind generating set is located, and mainly comprises data such as wave height, period, wave direction, section flow velocity, flow direction, temperature and humidity, atmospheric pressure and the like;
the main control unit 9 is in communication connection with the real-time operation monitoring unit 1, the six-degree-of-freedom motion monitoring unit 2, the multi-axis inclination angle posture monitoring unit 3, the load monitoring unit 4, the anchor chain tension monitoring unit 5, the weeping monitoring unit 6, the liquid level monitoring unit 7 and the marine meteorological hydrologic monitoring unit 8 through the switch and the server, and the main control unit obtains real-time operation state and dynamic response of the unit according to data and signals collected by the real-time operation monitoring unit 1, the six-degree-of-freedom motion monitoring unit 2, the multi-axis inclination angle posture monitoring unit 3, the load monitoring unit 4, the anchor chain tension monitoring unit 5, the weeping monitoring unit 6, the liquid level monitoring unit 7 and the marine meteorological hydrologic monitoring unit 8, analyzes and judges the data and the signals, and further controls the double wind wheel floating wind generating set according to the state space model to enable the double wind wheel floating wind generating set to be always under the safe operation boundary condition, thereby enabling the double wind wheels to capture wind energy to the maximum limit and convert into generated energy.
Specifically, the two real-time operation monitoring units 1 are respectively installed in the cabin 01 and the cabin 02 of the double-wind wheel floating wind generating set, each real-time operation monitoring unit comprises a power transmitter, a proximity switch and an angle encoder, the power transmitter is used for monitoring the generated power output of the corresponding wind wheel, the proximity switch is used for monitoring the rotating speed of the corresponding wind wheel, and the angle encoder is used for monitoring the pitch angle of the corresponding blade.
Specifically, the six-degree-of-freedom motion monitoring units are two, and the two six-degree-of-freedom motion monitoring units are respectively arranged in the engine room 01 and the engine room 02 of the double-wind wheel floating type wind generating set.
Specifically, the multi-axis inclination angle posture monitoring unit 3 can adopt a multi-axis inclination angle sensor and is installed on the lower transition section tower 05 of the double wind wheel floating type wind generating set.
Specifically, the load monitoring unit 4 includes a plurality of strain gauges 401 that are respectively installed at the tower top and tower bottom positions of the upper tower 03 and the upper tower 04 of the double wind wheel floating wind turbine generator set, and each strain gauge is respectively arranged perpendicular to the cross section of the tower top or the tower bottom.
Specifically, the anchor chain tension monitoring unit 5 may adopt a multi-anchor chain tension meter, and is installed on an anchor chain of a mooring system of the double wind wheel floating wind generating set, and the anchor chain tension meter may be directly measured based on a micro-strain principle on a chain link of the anchor chain, or indirectly measured based on a change in a displacement amount between the chain links or based on a change in an inclination angle and a position of the anchor chain.
Specifically, the leakage monitoring unit 6 includes a plurality of leakage sensing sensors, and the plurality of leakage sensing sensors are respectively installed in the buoyancy compartment and the pontoon, and the leakage sensing sensors monitor the change of the resistance value, so as to realize the leakage judgment and the early warning of the buoyancy compartment and the pontoon.
Specifically, the liquid level monitoring unit 7 may adopt a liquid level monitoring sensor and be installed in a ballast tank of the double wind wheel floating wind turbine generator set.
Specifically, the marine meteorological hydrologic monitoring unit 8 is arranged in the range of 1km of the surrounding sea area of the double wind wheel floating type wind generating set, and a buoy of the marine meteorological hydrologic monitoring unit is integrated with meteorological hydrologic sensors for collecting multiple elements such as waves, ocean currents, humiture, atmospheric pressure and the like.
As shown in FIG. 4, the system is a working principle of a double wind wheel floating type wind generating set monitoring control system, wherein a dotted line represents a transmission path of a signal information flow, a solid line represents a transmission path of an energy flow, and M R Representing the torque output by the impeller, Ω R Represents the angular velocity of rotation of the impeller, M m Representing torque output by the drive train, Ω m The angular velocity of the output shaft of the drive train is represented, and P represents the output power of the power generation system. The invention controls and protects the running state of the unit through the main control unit, and the information flow in the unit is transmitted around the main control unit. The running state of the unit comprises a start state, a running state, a pause state, a stop state and the like, and the unit is stopped in an emergency mode when a severe working condition occurs in the external running environment of the fan or parts of the unit fail. The physical quantities such as wind speed, wind direction, rotating speed, power generation and the like are acquired by the sensors and are communicated and transmitted to the main control unit, the signals are input information of the main control unit, the main control unit analyzes and judges the input signals in real time, and command actions are timely made according to corresponding control strategies, so that the stable operation of the double wind wheel floating type wind generating set is ensured.
Example 2:
the embodiment provides a control method based on a double wind wheel floating type wind generating set monitoring control system, which aims at normal power generation working conditions and specifically comprises the following steps:
when the wind speed of the cabin environment is in the range from the cut-in wind speed to the cut-out wind speed, the fan reaches the start-up operation condition, the main control unit automatically judges the wind speed and the wind direction of the cabin environment of the double wind wheels and the deviation of the wind direction, if the conditions are met, a pitch command is output to a pitch system of the double wind wheel floating type wind generating set, the pitch action is executed, at the moment, monitoring data and signals of the real-time operation monitoring unit, the six-freedom-degree motion monitoring unit and the load monitoring unit are transmitted to the main control unit, the main control unit analyzes and judges the data and the signals, and if the deviation does not exceed the preset limit deviation, the main control unit controls the two sets to maintain normal power generation operation; if the deviation exceeds the preset limit deviation, synchronous measures are taken, such as a main control unit controls the pitch-withdrawing action of one unit, so that the double wind wheel running state keeps synchronous and stable running;
example 3:
the embodiment provides a control method based on a double wind wheel floating type wind generating set monitoring control system, which aims at emergency stop working conditions and specifically comprises the following steps:
in general, the system comprises an emergency shutdown condition in addition to natural environment changes such as wind resources and normal shutdown conditions of local or manual operation, and when an abnormality or a fault is detected in the operation process of the monitoring control system, for example, when six-degree-of-freedom motion response of the cabin exceeds a preset boundary value, a tower cylinder load value is abnormal, a buoyancy cabin is leaked, the liquid level of a ballast cabin changes, an anchor chain tension value is abnormal or a wave height value exceeds a preset boundary, a main control unit immediately sends out an instruction to control two units to jump from an operation state to the emergency shutdown state and timely gives out an early warning signal or a fault signal;
example 4:
the embodiment provides a control method based on a double wind wheel floating type wind generating set monitoring control system, which aims at extreme survival conditions and specifically comprises the following steps:
aiming at extreme weather conditions such as typhoons, when a marine weather hydrologic monitoring unit monitors that the wind direction or wave direction of a weather hydrologic environment changes, a main control unit controls two units to execute a pitch-changing action, the passive pair wind of the two units is regulated in an auxiliary mode, the pneumatic thrust born by a double wind wheel is reduced, the wave load born by a floating foundation and a lower transition section tower barrel is reduced, and therefore the system stability of the whole machine under the extreme survival working condition is ensured.
The above description is only of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive conception of the present invention equally within the scope of the disclosure of the present invention.
Claims (10)
1. A monitoring control system of a double wind wheel floating type wind generating set is characterized by comprising:
the real-time operation monitoring unit is used for monitoring the real-time operation parameters of the power output, the rotating speed of the wind wheel and the variable pitch angle of the blades of the two units of the double wind wheel floating type wind generating set;
the six-degree-of-freedom motion monitoring unit is used for monitoring six-degree-of-freedom motions of two cabins of the double-wind wheel floating type wind generating set in real time;
the multi-axis inclination angle posture monitoring unit is used for monitoring posture change of a basic platform of the double-wind wheel floating type wind generating set;
the load monitoring unit is used for monitoring loads at the tower top and tower bottom positions of two upper tower barrels of the double wind wheel floating type wind generating set;
the anchor chain tension monitoring unit is used for monitoring the anchor chain tension of the double-wind wheel floating type wind generating set;
the liquid leakage monitoring unit is used for monitoring the liquid leakage condition of the buoyancy cabin and the pontoon of the double-wind wheel floating type wind generating set;
the liquid level monitoring unit is used for monitoring a ballast tank of the double wind wheel floating type wind generating set and outputting a liquid level real-time value;
the marine meteorological hydrologic monitoring unit is used for monitoring meteorological hydrologic data of a sea area where the double-wind wheel floating type wind generating set is located;
the main control unit is used for obtaining real-time running states and dynamic responses of the unit according to data and signals collected by the real-time running monitoring unit, the six-degree-of-freedom motion monitoring unit, the multi-axis inclination angle posture monitoring unit, the load monitoring unit, the anchor chain tension monitoring unit, the liquid leakage monitoring unit, the liquid level monitoring unit and the marine meteorological hydrologic monitoring unit, analyzing and judging the data and the signals, and controlling the double wind wheel floating type wind generating set according to the state space model to enable the double wind wheel floating type wind generating set to be always under the safe running boundary condition, so that the double wind wheels capture wind energy to the maximum extent and convert the wind energy into generated energy.
2. The double wind wheel floating wind generating set monitoring control system of claim 1, wherein: the two real-time operation monitoring units are respectively arranged in two cabins of the double-wind wheel floating type wind generating set, each real-time operation monitoring unit comprises a power transmitter, a proximity switch and an angle encoder, the power transmitter is used for monitoring the power output of the corresponding wind wheel, the proximity switch is used for monitoring the rotating speed of the corresponding wind wheel, and the angle encoder is used for monitoring the pitch angle of the corresponding blade.
3. The double wind wheel floating wind generating set monitoring control system of claim 1, wherein: the six-degree-of-freedom motion monitoring units are arranged in two cabins of the double-wind wheel floating type wind generating set respectively.
4. The double wind wheel floating wind generating set monitoring control system of claim 1, wherein: the multi-axis inclination angle posture monitoring unit is arranged on a tower barrel of a lower transition section of the double wind wheel floating type wind generating set; the anchor chain tension monitoring unit is arranged on an anchor chain of the double-wind wheel floating type wind generating set.
5. The double wind wheel floating wind generating set monitoring control system of claim 1, wherein: the load monitoring unit comprises a plurality of strain gauges which are respectively arranged at the top and bottom positions of two upper tower barrels of the double wind wheel floating type wind generating set, and each strain gauge is respectively perpendicular to the section of the top or bottom of the tower.
6. The double wind wheel floating wind generating set monitoring control system of claim 1, wherein: the liquid level monitoring unit is arranged in a ballast tank of the double-wind wheel floating type wind generating set; the marine meteorological hydrologic monitoring unit is arranged at a set distance of the surrounding sea area of the double-wind wheel floating type wind generating set, and a meteorological hydrologic sensor for collecting waves, ocean currents, humiture and atmospheric pressure is integrated on a buoy of the marine meteorological hydrologic monitoring unit.
7. The double wind wheel floating wind generating set monitoring control system of claim 1, wherein: the leakage monitoring unit comprises a plurality of leakage sensing sensors which are respectively arranged in the buoyancy cabin and the pontoon.
8. A control method based on the double wind wheel floating wind generating set monitoring control system according to any one of claims 1 to 7, characterized by specific following for normal power generation working conditions:
when the wind speed of the cabin environment is in the range from the cut-in wind speed to the cut-out wind speed, the fan reaches the start-up operation condition, the main control unit automatically judges the wind speed and the wind direction of the cabin environment of the double wind wheels and the deviation of the wind direction, if the conditions are met, a pitch command is output to a pitch system of the double wind wheel floating type wind generating set, the pitch action is executed, at the moment, monitoring data and signals of the real-time operation monitoring unit, the six-freedom-degree motion monitoring unit and the load monitoring unit are transmitted to the main control unit, the main control unit analyzes and judges the data and the signals, and if the deviation does not exceed the preset limit deviation, the main control unit controls the two sets to maintain normal power generation operation; and if the deviation exceeds the preset limit deviation, the main control unit controls the two units, so that the running state of the double wind wheels keeps synchronous and stable running.
9. A control method based on the double wind wheel floating wind generating set monitoring control system according to any one of claims 1 to 7, characterized by specific following for emergency stop working conditions:
when the six-degree-of-freedom motion response of the cabin exceeds a preset boundary value, the tower load value is abnormal, the buoyancy cabin leaks liquid abnormally, the liquid level of the ballast cabin changes, the anchor chain tension value is abnormal or the wave height value exceeds the preset boundary, the main control unit controls the two units to jump from the running state to the emergency stop state, and early warning signals or fault signals are timely given.
10. A control method based on the double wind wheel floating wind generating set monitoring control system according to any one of claims 1 to 7, characterized by specific following for extreme survival conditions:
when the marine meteorological hydrologic monitoring unit monitors that the wind direction or wave direction of the meteorological hydrologic environment changes, the main control unit controls the two units to execute the pitch-variable action, and the passive pair wind of the two units is regulated in an auxiliary mode, so that the system stability of the whole machine under the extreme survival working condition is ensured.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386568A (en) * | 2023-12-13 | 2024-01-12 | 中国海洋大学 | Multi-fan driving real-time mixed model test method for offshore floating fan |
| CN117514647A (en) * | 2023-11-22 | 2024-02-06 | 江苏海龙风电科技股份有限公司 | Offshore wind power installation platform inclination monitoring system |
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- 2023-07-06 CN CN202310821522.7A patent/CN116906278A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514647A (en) * | 2023-11-22 | 2024-02-06 | 江苏海龙风电科技股份有限公司 | Offshore wind power installation platform inclination monitoring system |
| CN117386568A (en) * | 2023-12-13 | 2024-01-12 | 中国海洋大学 | Multi-fan driving real-time mixed model test method for offshore floating fan |
| CN117386568B (en) * | 2023-12-13 | 2024-03-01 | 中国海洋大学 | Multi-fan driving real-time mixed model test method for offshore floating fan |
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