Wind power generation monitoring system and method based on remote sensing satellite

Abstract

The invention relates to the technical field of wind power generation monitoring, in particular to a wind power generation monitoring system and method based on a remote sensing satellite, and the system comprises a plurality of field monitoring mechanisms, at least one ground base station and a monitoring terminal. The field monitoring mechanisms are installed on the corresponding wind power generation devices in a one-to-one correspondence mode. The field monitoring mechanism on each wind power generation device on each monitoring land parcel communicates with the monitoring terminal through a ground base station and a satellite; the field monitoring mechanism comprises a data acquisition module, a positioning module, a control module and a communication module; the data acquisition module comprises a temperature acquisition unit and a vibration acquisition unit; and the monitoring terminal comprehensively analyzes the temperature signals and the vibration signals of all the wind power generation devices on each monitoring land parcel, determines whether each wind power generation device has a fault or not, and locks the position of the fault wind power generation device. According to the invention, the state of the wind power generation equipment can be monitored more comprehensively, and the fault fan can be positioned quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation monitoring, and more particularly to a wind power generation monitoring system and method based on a remote sensing satellite. Background Art

[0002] To date, energy shortage and environmental pollution are still issues of great concern to people. Excessive exploitation of traditional energy sources such as oil and coal will lead to a series of problems, such as worsening environmental pollution, global warming, energy loss, etc. In order to solve this problem, renewable clean energy has become the main research direction, such as wind power, solar energy, hydropower and biomass energy. Among them, wind power generation, as one of the clean power generation technologies, has the characteristics of being renewable, pollution-free to the environment and can be vigorously developed, and has become an important part of the power system. Among them, wind power generation equipment is a device that generates electricity through wind power, including generators, gearboxes and hydraulic equipment, etc., and the generator is located in the cabin.

[0003] In order to ensure the normal operation of wind power generation equipment, it is necessary to monitor many parameters on the equipment. In actual use, the existing monitoring devices are not comprehensive enough, resulting in the inability to find the cause in time when problems occur in wind power generation equipment. At the same time, it causes risks in wind power generation equipment and the monitoring system is not timely, which increases safety hazards. In addition, for a large number of wind power generation equipment distributed in a certain plot, it is difficult for existing monitoring devices to monitor a large number of wind power generation equipment at the same time. When one of the wind power generation equipment fails, maintenance personnel cannot simply and quickly lock and find the target wind power generation equipment.

[0004] Therefore, how to monitor wind power generation equipment more comprehensively and locate faulty wind turbines more quickly is a problem that those skilled in the art need to solve urgently. Summary of the invention

[0005] In view of this, the present invention provides a wind power generation monitoring system and method based on remote sensing satellites, which can realize more comprehensive monitoring of the status of wind power generation equipment and more quickly locate faulty wind turbines.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a remote sensing satellite-based wind power generation monitoring system, comprising: a plurality of on-site monitoring mechanisms, at least one ground base station and a monitoring terminal; each of the on-site monitoring mechanisms is installed on a corresponding wind power generation device in a one-to-one correspondence; the ground base station is installed on a corresponding monitoring plot; the on-site monitoring mechanism on each wind power generation device on each monitoring plot communicates with the monitoring terminal via the ground base station and the satellite;

[0008] Each of the on-site monitoring mechanisms comprises: a data acquisition module, a positioning module, a control module and a communication module; the data acquisition module, the positioning module and the communication module are respectively connected to the control module; the communication module is connected to the ground base station;

[0009] The data acquisition module includes a temperature acquisition unit and a vibration acquisition unit;

[0010] The temperature acquisition unit is used to acquire temperature signals of corresponding monitoring points of the wind power generation equipment; the vibration acquisition unit is used to acquire vibration signals of corresponding monitoring points of the wind power generation equipment;

[0011] The monitoring terminal is used to comprehensively analyze the temperature signals and vibration signals of all wind power generation equipment on each monitoring plot, determine whether each wind power generation equipment has a fault, and locate the position of the faulty wind power generation equipment.

[0012] Further, the temperature acquisition unit includes a first temperature sensor and a second temperature sensor;

[0013] The first temperature sensor is installed inside the gear box of the wind power generation equipment and is used to collect the temperature signal of the gear box;

[0014] The second temperature sensor is installed inside the cabin of the wind power generation equipment and is used to collect the temperature signal inside the cabin.

[0015] Furthermore, the temperature acquisition unit also includes a third temperature sensor, which is installed on the outer wall of the generator of the wind power generation equipment and is used to collect the temperature signal of the generator.

[0016] Further, the vibration collection unit includes a first vibration sensor and a second vibration sensor;

[0017] The first vibration sensor is installed on the outer wall of the gear box of the wind power generation equipment to collect the vibration signal of the gear box;

[0018] The second vibration sensor is installed on the inner wall or outer wall of the cabin of the wind power generation equipment, and is used to collect vibration signals of the cabin.

[0019] Furthermore, the data acquisition module also includes a rotation speed monitoring unit, and the rotation speed monitoring unit includes a rotation speed sensor. The rotation speed sensor is installed on the inner wall of the gear box of the wind power generation equipment and is used to collect the rotation speed signal of a certain gear.

[0020] Furthermore, the on-site monitoring mechanism also includes an audible and visual alarm, which is installed on the outer wall of the wind power generation equipment and is electrically connected to the control module;

[0021] The control module is used to control the start and stop status of the sound and light alarm.

[0022] Furthermore, the ground base station is connected to the monitoring terminal via an optical fiber.

[0023] In a second aspect, the present invention provides a remote sensing satellite-based wind power generation monitoring method, characterized in that it is applicable to the system as described above, and comprises the following steps:

[0024] Gearbox temperature signals and cabin internal temperature signals of all wind power generation equipment on at least one monitoring plot are collected and compared with their respective preset normal temperature ranges. If a temperature signal of a wind power generation equipment exceeds the preset normal temperature range, the wind power generation equipment is regarded as a faulty equipment;

[0025] Gearbox vibration signals and cabin vibration signals of all wind turbines on at least one monitoring plot are collected and compared with their respective preset normal vibration ranges. If a vibration signal of a wind turbine exceeds the preset normal vibration range, the wind turbine is regarded as a faulty device.

[0026] The location information of all wind power generation equipment on at least one monitoring plot is collected, a positioning distribution map of all wind power generation equipment is generated, and the position of the faulty equipment in the positioning distribution map is locked.

[0027] Furthermore, the method also includes:

[0028] The gear speeds of all wind turbines on at least one monitoring plot are collected, and the gear speeds of the wind turbines on the same monitoring plot are compared and analyzed. If the difference between the gear speed of a certain wind turbine and the gear speeds of other wind turbines on the monitoring plot exceeds a threshold, it indicates that the wind turbine is faulty.

[0029] Furthermore, the method also includes: collecting the generator temperature of each wind power generation equipment and comparing it with a preset normal temperature range. If the generator temperature signal of a wind power generation equipment exceeds the preset normal temperature range, the wind power generation equipment is regarded as a faulty equipment.

[0030] It can be seen from the above technical solutions that, compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. In the present invention, a positioning module is installed on each wind power generation equipment, and all wind power generation equipment distributed on the monitoring plot is positioned by remote sensing satellites, and the positioning distribution map of the wind power generation equipment is displayed by the monitoring terminal, and the faulty wind power generation equipment is locked.

[0032] 2. When repairing a faulty wind power generation equipment, in order to quickly find the faulty wind power generation equipment in a large monitoring area, the monitoring terminal remotely activates the sound and light alarm through the control module, so that the sound and light alarm gives a sound and light alarm, thereby facilitating the maintenance personnel to quickly find the faulty wind power generation equipment;

[0033] 3. In the present invention, the data acquisition device includes a temperature acquisition unit, a vibration acquisition unit and a speed acquisition unit. The temperature acquisition unit can monitor the temperature of the working gearbox, the cabin and the generator. The vibration acquisition unit can monitor the vibration of the working gearbox and the cabin. The speed acquisition unit can monitor the speed of a certain gear inside the gearbox, thereby monitoring the speed of the wind blades on the wind power generation equipment. The monitoring range is wide, and the wind power generation equipment that may fail can be detected at the first time, so that the failed wind power generation equipment can be maintained and repaired in time to avoid causing greater losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of a wind power generation monitoring system based on a remote sensing satellite provided by the present invention;

[0036] Figure 2 A schematic diagram of the structure of the on-site monitoring mechanism provided by the present invention;

[0037] Figure 3 It is a communication diagram of the on-site monitoring organization, base station, satellite and monitoring terminal;

[0038] Figure 4 The present invention provides a flow chart of a remote sensing satellite-based wind power generation monitoring method. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figure 1As shown, an embodiment of the present invention discloses a wind power generation monitoring system based on a remote sensing satellite, including: multiple field monitoring mechanisms, at least one ground base station and a monitoring terminal; each field monitoring mechanism is installed one-to-one on the corresponding wind power generation equipment; the ground base station is installed on the corresponding monitoring plot; the field monitoring mechanism on each wind power generation equipment on each monitoring plot communicates with the monitoring terminal through the ground base station and the satellite.

[0041] Each on-site monitoring organization includes: a data acquisition module, a positioning module, a control module and a communication module; the data acquisition module, the positioning module and the communication module are respectively connected to the control module; the communication module is connected to the ground base station; when transmitting the information of the on-site wind power generation equipment, the control module sends the information collected by the data acquisition module and the positioning module to the communication module, and the communication module forwards various information to the corresponding ground base station and satellite, and the satellite forwards the relevant information to a ground base station at another location, and then another ground base station forwards the information to the monitoring terminal, thereby realizing the transmission of information.

[0042] The positioning module uses a GPS chip, which is installed inside the wind power generation equipment. The remote sensing satellite is connected to the ground base station through GPRS, the positioning module is connected to the ground base station through GPRS, the ground base station is electrically connected to the monitoring terminal through optical fiber, the wind power generation equipment distributed on the detection plot is located through the remote sensing satellite, and the wind power generation equipment location distribution map is displayed through the monitoring display screen on the monitoring terminal.

[0043] The data acquisition module includes a temperature acquisition unit and a vibration acquisition unit;

[0044] The temperature acquisition unit is used to collect temperature signals of corresponding monitoring points of the wind power generation equipment; the vibration acquisition unit is used to collect vibration signals of corresponding monitoring points of the wind power generation equipment;

[0045] The monitoring terminal is used to comprehensively analyze the temperature signals and vibration signals of all wind power generation equipment on each monitoring plot, determine whether each wind power generation equipment has a fault, and lock the location of the faulty wind power generation equipment.

[0046] like Figure 3 As shown, a ground base station is set up within each monitoring plot. The ground base station forwards the signals collected by all on-site detection agencies within the monitoring plot to the satellite, and then forwards the signals to the base station within the plot where the monitoring terminal is located through the satellite, and then the base station forwards the information to the monitoring terminal; conversely, when the monitoring terminal needs to remotely control the on-site equipment, the relevant control instructions issued by the monitoring terminal are also transmitted to the corresponding on-site monitoring agency along the same path.

[0047] Specifically, if Figure 2As shown, the temperature acquisition unit includes a first temperature sensor, a second temperature sensor and a third temperature sensor;

[0048] The first temperature sensor is installed inside the gear box of the wind power generation equipment and is used to collect the temperature signal of the gear box;

[0049] The second temperature sensor is installed inside the cabin of the wind power generation equipment and is used to collect the temperature signal inside the cabin;

[0050] The third temperature sensor is installed on the outer wall of the generator of the wind power generation equipment, and is used to collect the temperature signal of the generator.

[0051] The temperature of the gearbox on the wind power generation equipment is monitored by the first temperature sensor and the monitoring result is converted into an electrical signal and sent to the monitoring terminal. The internal temperature of the cabin on the wind power generation equipment is monitored by the second temperature sensor and the monitoring result is converted into an electrical signal and sent to the monitoring terminal. The temperature of the generator on the wind power generation equipment is monitored by the third temperature sensor and the monitoring result is converted into an electrical signal and sent to the monitoring terminal. The monitoring terminal processes and analyzes the received temperature value, compares it with the predetermined normal temperature value range of the gearbox, cabin and generator, and once the received temperature value exceeds the predetermined normal temperature value range, the monitoring terminal concludes that the corresponding wind power generation equipment has failed.

[0052] The vibration collection unit includes a first vibration sensor and a second vibration sensor;

[0053] The first vibration sensor is installed on the outer wall of the gear box of the wind power generation equipment, and is used to collect the vibration signal of the gear box;

[0054] The second vibration sensor is installed on the inner wall or outer wall of the cabin of the wind power generation equipment, and is used to collect vibration signals of the cabin.

[0055] The vibration condition of the gearbox during operation is monitored by the first vibration sensor, and the monitoring result is converted into an electrical signal and sent to the monitoring terminal. The vibration condition of the cabin during operation is monitored by the second vibration sensor, and the monitoring result is converted into an electrical signal and sent to the monitoring terminal. The monitoring terminal processes and analyzes the received vibration result, and compares it with the predetermined normal vibration value range of the gearbox and the cabin. Once the received vibration result exceeds the predetermined normal vibration value range, the monitoring terminal 1 concludes that the corresponding wind power generation equipment has failed.

[0056] In another embodiment, the data acquisition module further includes a rotation speed monitoring unit, which includes a rotation speed sensor installed on the inner wall of a gear box of the wind power generation equipment for collecting a rotation speed signal of a certain gear.

[0057] Since the speed of the gear affects the rotation speed of the blades on the wind turbine, the monitoring terminal compares and analyzes the monitoring results of the speed sensors on all wind turbines located in the same monitoring plot. Since all wind turbines are located in the same monitoring plot, the speed of the blades on the wind turbines in the same monitoring plot should be consistent. Once it is found that the monitoring results of the speed sensor on a certain wind turbine are significantly different from the monitoring results of the other speed sensors, it indicates that the wind turbine is faulty. Specifically, the z-score method can be used. This method determines whether the data is an outlier by calculating the distance between the data point and the mean. Specifically, this method subtracts the mean from the value of each data point and then divides it by the standard deviation. If the calculated value exceeds the threshold, it is marked as an outlier.

[0058] In a more advantageous embodiment, the on-site monitoring mechanism further includes an audible and visual alarm, which is installed on the outer wall of the wind power generation equipment and is electrically connected to the control module; the control module is used to control the start and stop status of the audible and visual alarm. Once the monitoring terminal analyzes that a certain wind power generation equipment may have a fault, it sends an alarm signal to the control module, and the control module controls the audible and visual alarm in a preset manner to warn the faulty equipment.

[0059] In other embodiments, Figure 4 As shown, the present invention also provides a wind power generation monitoring method based on a remote sensing satellite, which is applicable to the above-mentioned system and includes the following steps:

[0060] Gearbox temperature signals, cabin internal temperature signals and generator temperature signals of all wind power generation equipment on at least one monitoring plot are collected and compared with their respective preset normal temperature ranges. If at least one temperature signal of a wind power generation equipment exceeds the preset normal temperature range, the wind power generation equipment is regarded as a faulty equipment;

[0061] Gearbox vibration signals and cabin vibration signals of all wind power generation equipment on at least one monitoring plot are collected and compared with their respective preset normal vibration ranges. If at least one vibration signal of a wind power generation equipment exceeds the preset normal vibration range, the wind power generation equipment is regarded as a faulty equipment;

[0062] The location information of all wind power generation equipment on at least one monitoring plot is collected, a positioning distribution map of all wind power generation equipment is generated, and the position of the faulty equipment in the positioning distribution map is locked.

[0063] More advantageously, the method further comprises:

[0064] The gear speeds of all wind turbines on at least one monitoring plot are collected, and the gear speeds of the wind turbines on the same monitoring plot are compared and analyzed. If the difference between the gear speed of a certain wind turbine and the gear speeds of other wind turbines on the monitoring plot exceeds a threshold, it indicates that the wind turbine is faulty.

[0065] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0066] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind power generation monitoring system based on remote sensing satellite, characterized in that: include: A plurality of on-site monitoring agencies, at least one ground base station and a monitoring terminal; Each of the on-site monitoring mechanisms is installed on the corresponding wind power generation equipment in a one-to-one correspondence; the ground base station is installed on the corresponding monitoring plot; the on-site monitoring mechanism on each wind power generation equipment on each monitoring plot communicates with the monitoring terminal via the ground base station and the satellite; Each of the on-site monitoring mechanisms includes: a data acquisition module, a positioning module, a control module and a communication module; The data acquisition module, the positioning module and the communication module are respectively connected to the control module; the communication module is connected to the ground base station; The data acquisition module includes a temperature acquisition unit and a vibration acquisition unit; The temperature acquisition unit is used to acquire temperature signals of corresponding monitoring points of the wind power generation equipment; the vibration acquisition unit is used to acquire vibration signals of corresponding monitoring points of the wind power generation equipment; The monitoring terminal is used to comprehensively analyze the temperature signals and vibration signals of all wind power generation equipment on each monitoring plot, determine whether each wind power generation equipment has a fault, and locate the position of the faulty wind power generation equipment.

2. The wind power generation monitoring system based on remote sensing satellite according to claim 1 is characterized in that: The temperature acquisition unit includes a first temperature sensor and a second temperature sensor; The first temperature sensor is installed inside the gear box of the wind power generation equipment and is used to collect the temperature signal of the gear box; The second temperature sensor is installed inside the cabin of the wind power generation equipment and is used to collect the temperature signal inside the cabin.

3. The remote sensing satellite-based wind power generation monitoring system according to claim 2 is characterized in that: The temperature acquisition unit further includes a third temperature sensor, which is installed on the outer wall of the generator of the wind power generation equipment and is used to acquire a temperature signal of the generator.

4. The remote sensing satellite-based wind power generation monitoring system according to claim 1, characterized in that: The vibration collection unit includes a first vibration sensor and a second vibration sensor; The first vibration sensor is installed on the outer wall of the gear box of the wind power generation equipment to collect the vibration signal of the gear box; The second vibration sensor is installed on the inner wall or outer wall of the cabin of the wind power generation equipment, and is used to collect vibration signals of the cabin.

5. The remote sensing satellite-based wind power generation monitoring system according to claim 1, characterized in that: The data acquisition module further includes a rotation speed monitoring unit, which includes a rotation speed sensor. The rotation speed sensor is installed on the inner wall of the gear box of the wind power generation equipment and is used to collect the rotation speed signal of a certain gear.

6. The remote sensing satellite-based wind power generation monitoring system according to claim 1, characterized in that: The on-site monitoring mechanism also includes an audible and visual alarm, which is installed on the outer wall of the wind power generation equipment and is electrically connected to the control module; The control module is used to control the start and stop status of the sound and light alarm.

7. The remote sensing satellite-based wind power generation monitoring system according to claim 1, characterized in that: The ground base station is connected to the monitoring terminal via an optical fiber.

8. A wind power generation monitoring method based on remote sensing satellite, characterized in that: It is applicable to the system according to any one of claims 1 to 7, comprising the following steps: Gearbox temperature signals and cabin internal temperature signals of all wind power generation equipment on at least one monitoring plot are collected and compared with their respective preset normal temperature ranges. If a temperature signal of a wind power generation equipment exceeds the preset normal temperature range, the wind power generation equipment is regarded as a faulty equipment; Gearbox vibration signals and cabin vibration signals of all wind turbines on at least one monitoring plot are collected and compared with their respective preset normal vibration ranges. If a vibration signal of a wind turbine exceeds the preset normal vibration range, the wind turbine is regarded as a faulty device. The location information of all wind power generation equipment on at least one monitoring plot is collected, a positioning distribution map of all wind power generation equipment is generated, and the position of the faulty equipment in the positioning distribution map is locked.

9. The remote sensing satellite-based wind power generation monitoring method according to claim 8, characterized in that: Also includes: The gear speeds of all wind turbines on at least one monitoring plot are collected, and the gear speeds of the wind turbines on the same monitoring plot are compared and analyzed. If the difference between the gear speed of a certain wind turbine and the gear speeds of other wind turbines on the monitoring plot exceeds a threshold, it indicates that the wind turbine is faulty.

10. The remote sensing satellite-based wind power generation monitoring method according to claim 8, characterized in that: Also includes: The generator temperature of each wind power generation equipment is collected and compared with the preset normal temperature range. If the generator temperature signal of a wind power generation equipment exceeds the preset normal temperature range, the wind power generation equipment is regarded as a faulty equipment.

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