State acquisition device and monitoring system for automatic lubricating pump of wind driven generator

Abstract

The utility model provides a wind driven generator automatic lubrication pump state acquisition device and a monitoring system, the acquisition device comprises a signal acquisition module comprising a signal acquisition module located in a rotating hub and a signal acquisition module located in a cabin, and the signal acquisition module is used for acquiring the state of a lubrication pump in the rotating hub and the cabin; the wireless transmission module comprises a wireless transmission module located in the rotating hub and a wireless transmission module located in the cabin; the wireless transmission module is in wired connection with the signal acquisition module; the wireless transmission module positioned in the cabin receives and transmits a lubricating pump state signal at the rotating hub part to the signal acquisition module positioned in the cabin in a wireless communication manner; and the wired transmission module is in wired connection with the signal acquisition module positioned in the cabin and is used for transmitting the state signals of the rotating hub part and the lubricating pump in the cabin to the outside in a wired manner. The monitoring system comprises a plurality of acquisition devices and a remote monitoring module.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power generation equipment automation, and particularly relates to a state acquisition device and a monitoring system for an automatic lubricating pump of a wind turbine generator. Background Technique

[0002] Wind farms are mostly located in remote areas such as mountains and hills far from cities, and it is difficult for personnel to reach in time. Therefore, the construction of unmanned intelligent wind farms is one of the main promoted technologies. By installing remote state acquisition devices and monitoring devices on lubricating pumps, it can help the construction of unmanned and intelligent wind farms in the field of operation and maintenance.

[0003] At present, most important equipment in wind farms is equipped with automatic lubricating pumps. When the lubricating pump fails, the lubricated parts will lose lubrication protection, causing huge losses. At present, most lubricating pumps do not have a remote alarm function. Even if some oil pumps have an alarm buzzer, the problem can only be found when personnel conduct inspections on the wind turbines. Since the inspections of wind turbines are periodic, while the occurrence of faults is random. This leads to the fact that inspections and spot checks can only play a very small role in timely detecting faults. Coupled with the faults of important lubricated parts, the losses are often huge. Therefore, it is necessary to propose a remote alarm device to solve the above problems. By installing remote state acquisition devices and monitoring devices, not only can real-time alarms be given, but also the time when the equipment fails can be accurately recorded, realizing real-time discovery of fault occurrence and scientifically arranging the time for boarding maintenance. And when analyzing the causes of equipment failures, it can also provide data support.

[0004] In the prior art, there is also a method of sending lubrication state abnormal alarm information to the main control end of a remote wind power plant through a signal transceiver to realize the remote monitoring function. For example, in the Chinese utility model patent with the publication number CN219139269U, however, this utility model patent uses an additional signal transceiver to wirelessly communicate with the remote main control end. Since wind farms are mostly located in remote areas such as mountains and hills far from cities, long-distance wireless signals are usually not very stable. Therefore, its actual monitoring effect may not meet the expected requirements. And the purpose of this patent is only to monitor the lubrication state of the lubricated parts of the wind turbine, rather than the lubrication state of the lubricating pump, that is, not to monitor the operating state of the lubricating pump. Content of the Utility Model

[0005] In order to achieve the above object, the technical solution adopted by the utility model is:

[0006] The utility model provides a state acquisition device for an automatic lubricating pump of a wind turbine generator in a first aspect, including:

[0007] A signal acquisition module, including a signal acquisition module located in the rotating hub and a signal acquisition module located in the nacelle, for acquiring the state of the lubricating pump at the rotating hub part and in the nacelle;

[0008] The wireless transmission module includes a wireless transmission module located inside the rotating hub and a wireless transmission module located inside the nacelle;

[0009] The wireless transmission module located inside the rotating hub is wired to the signal acquisition module located inside the rotating hub, and the wireless transmission module located inside the nacelle is wired to the signal acquisition module located inside the nacelle;

[0010] The wireless transmission module located inside the rotating hub communicates wirelessly with the wireless transmission module located inside the nacelle, receives and forwards the lubricating pump status signal of the rotating hub part to the signal acquisition module located inside the nacelle;

[0011] The wired transmission module is wired to the signal acquisition module located inside the nacelle, and is used to transmit the lubricating pump status signals of the rotating hub part and inside the nacelle to the outside by wire.

[0012] Based on the above, the signal acquisition module is provided with an analog acquisition channel for receiving 4 - 20ma, 0 - 10V, 0 - 5V analog signals, a digital acquisition channel for receiving 24V level digital signals, and a communication message acquisition channel for receiving 485 communication message signals.

[0013] Based on the above, the wired connection between the wireless transmission module and the signal acquisition module is made using shielded twisted pair or BV wire.

[0014] Based on the above, the wireless transmission module adopts any one of the modulation methods of LORA, zigbee, and Bluetooth, and supports the access of modbus, PPI, and profinet communication protocols.

[0015] Based on the above, the wired transmission module supports TCP, UDP communication protocols and token ring network transmission, and communicates externally through network cable or optical fiber.

[0016] Based on the above, the wired connection between the wired transmission module and the signal acquisition module located inside the nacelle is made using a Category 5 Ethernet cable.

[0017] Based on the above, the wired signal transmission module is an optical port or an electrical port switch or an industrial switch with management functions.

[0018] Based on the above, the wireless transmission module and the signal acquisition module located inside the rotating hub, as well as the wireless transmission module and the signal acquisition module located inside the nacelle, are respectively fixed in the corresponding acquisition cabinets, and the acquisition cabinets are correspondingly installed on the bulkhead inside the wind turbine nacelle and on the brackets inside the wind turbine hub bin;

[0019] The wired transmission module is installed in the communication cabinet at the bottom of the wind turbine tower.

[0020] In the second aspect of the present utility model, a state monitoring system for an automatic lubrication pump of a wind turbine is provided, including:

[0021] A plurality of the above-mentioned state acquisition devices for the automatic lubrication pump of the wind turbine, which are used to acquire the state of the lubrication pump at the rotating hub part and in the nacelle of each wind turbine generator set;

[0022] A remote monitoring module, which is communicatively connected to the wired transmission module of each state monitoring device for the automatic lubrication pump of the wind turbine, is arranged on the console in the central control room of the wind power plant, receives the state signals of the lubrication pump at the rotating hub part and in the nacelle, and performs numerical display and storage.

[0023] Based on the above, the remote monitoring module is any one of a computer, a server or an HMI touch screen with a display function.

[0024] The present utility model has substantial features and progress compared with the prior art. Specifically:

[0025] 1. By setting a signal acquisition module and a wireless transmission module at the rotating hub part and in the nacelle, and a wired transmission module in the communication cabinet at the bottom of the wind turbine tower, the present utility model transmits the state of the lubrication pump at the rotating hub part collected through the wireless transmission module to the wireless transmission module in the nacelle, and then the wireless transmission module in the nacelle transmits the state of the lubrication pump at the rotating hub part and in the nacelle to the wired transmission module in a wired manner. Finally, the wired transmission module transmits it to the remote monitoring module in the central control room of the wind power plant through a wired manner such as optical fiber. Through the organic combination of wired and wireless communications, the state of the lubrication pump at the rotating hub part and in the nacelle collected can be transmitted to the central control room of the wind power plant in a timely, stable and reliable manner for remote monitoring.

[0026] 2. The wireless transmission module in the rotating hub communicates with the wireless transmission module in the nacelle by wireless, receives and transmits the state signal of the lubrication pump at the rotating hub part to the signal acquisition module in the nacelle, and solves the problem that it is not easy to set up lines at the relatively rotating parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the topology diagram of the system of the present utility model.

[0028] Figure 2 is the schematic circuit diagram of the acquisition at the rotating hub part in the device of the present utility model.

[0029] Figure 3 is the schematic circuit diagram of the acquisition at the rotating nacelle part in the device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0031] This embodiment provides a device for collecting the status of an automatic lubrication pump of a wind turbine, as Figure 1 shown, which includes a signal acquisition module, a wireless transmission module, and a wired transmission module.

[0032] Signal acquisition module

[0033] The signal acquisition module includes a signal acquisition module located inside the rotating hub and a signal acquisition module located inside the nacelle, which are used to collect the status of the lubrication pump at the rotating hub part and inside the nacelle, as Figure 2 and Figure 3 shown;

[0034] Specifically, the wireless transmission module and the signal acquisition module located inside the rotating hub, as well as the wireless transmission module and the signal acquisition module located inside the nacelle, are respectively fixed in the corresponding acquisition cabinets, and the acquisition cabinets are correspondingly installed on the bulkhead inside the nacelle of the wind turbine and on the brackets inside the hub bin of the wind turbine.

[0035] In some embodiments, the signal acquisition module is provided with an analog acquisition channel for receiving 4-20ma, 0-10V, 0-5V analog signals, a digital acquisition channel for receiving 24V level digital signals, and a communication message acquisition channel for receiving 485 communication message signals.

[0036] Wireless transmission module

[0037] The wireless transmission module includes a wireless transmission module located inside the rotating hub and a wireless transmission module located inside the nacelle; wherein, the wireless transmission module located inside the rotating hub is wired-connected to the signal acquisition module located inside the rotating hub, and the wireless transmission module located inside the nacelle is wired-connected to the signal acquisition module located inside the nacelle; the wireless transmission module located inside the rotating hub communicates wirelessly with the wireless transmission module located inside the nacelle, receives and transfers the lubrication pump status signal at the rotating hub part to the signal acquisition module located inside the nacelle.

[0038] The wireless transmission module can transmit and receive the 485 communication signal accessed by wire in the form of radio waves to achieve half-duplex communication. In some embodiments, the wireless transmission module adopts any one of LORA, zigbee, and Bluetooth modulation methods and supports the access of modbus, PPI, and profinet communication protocols. In particular, the wireless transmission module can adopt transparent transmission and can configure the channel frequency.

[0039] In some embodiments, when the signal acquisition module acquires analog signals and communication message signals, a shielded twisted pair cable is used for the wired connection between the wireless transmission module and the signal acquisition module; when the signal acquisition module acquires digital input signals, a BV hard wire is used for the wired connection between the wireless transmission module and the signal acquisition module.

[0040] Wired transmission module

[0041] Installed in the communication cabinet at the bottom of the wind turbine tower, the wired transmission module is connected to the signal acquisition module located in the nacelle by wire, and transmits the lubrication pump status signal in the nacelle and the signals (lubrication pump status signals at the rotating hub part) collected by the nacelle acquisition module wirelessly to the outside of the wind turbine by wire transmission.

[0042] In some embodiments, a Category 5 Ethernet cable is used for the wired connection between the wired transmission module and the signal acquisition module located in the nacelle.

[0043] In some embodiments, the wired transmission module supports TCP, UDP communication protocols and token ring network transmission, and communicates externally through a network cable or optical fiber.

[0044] Preferably, the wired signal transmission module is an optical port or an electrical port switch or an industrial switch with management functions.

[0045] Embodiment 2

[0046] This embodiment provides a wind turbine automatic lubrication pump status monitoring system, as Figure 1 shown, including:

[0047] Multiple wind turbine automatic lubrication pump status acquisition devices as described in Embodiment 1, which are used to acquire the lubrication pump status at the rotating hub part and in the nacelle of each wind turbine unit;

[0048] A remote monitoring module, which is communicatively connected to the wired transmission modules of each wind turbine automatic lubrication pump status monitoring device, is set on the console in the central control room of the wind farm, receives the lubrication pump status signals at the rotating hub part and in the nacelle, and performs numerical display and storage.

[0049] In some embodiments, the wired transmission module located at the bottom of the wind turbine tower is connected to the aggregation switch in the relay protection room of the wind farm through an optical fiber or an Ethernet cable, and the remote monitoring module in the central control room of the wind farm is connected to the aggregation switch through an Ethernet cable.

[0050] Preferably, the remote monitoring module is any one of a computer, a server or an HMI touch screen with a display function, and the operating system supports windows and linux operating systems. Signal feedback is realized through the transformation of graphics, colors and values, and variables such as operating status, fault status, start-stop time, etc. are stored. The remote monitoring module can also be configured with an alarm threshold. When the received signal exceeds or is lower than the set threshold, an audible and visual alarm is triggered to remind the monitoring personnel, and the fault alarm time is recorded at the same time.

[0051] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A wind turbine automatic lubrication pump state acquisition device, characterized in that: include: A signal acquisition module, including a signal acquisition module located in the rotating hub and a signal acquisition module located in the cabin, for acquiring states of the lubrication pump in the rotating hub and the cabin; A wireless transmission module, including a wireless transmission module located in the rotating hub and a wireless transmission module located in the cabin; The wireless transmission module located in the rotating hub is connected to the signal acquisition module located in the rotating hub by wire, and the wireless transmission module located in the cabin is connected to the signal acquisition module located in the cabin by wire; The wireless transmission module located in the rotating hub communicates wirelessly with the wireless transmission module located in the engine room, receives and transmits the lubrication pump status signal at the rotating hub to the signal acquisition module located in the engine room; The wired transmission module is wiredly connected to the signal acquisition module located in the cabin, and is used to transmit the status signal of the rotating hub and the lubrication pump in the cabin to the outside in a wired manner.

2. The wind turbine automatic lubrication pump state acquisition device according to claim 1 is characterized in that: The signal acquisition module is provided with an analog quantity acquisition channel for receiving 4-20ma, 0-10V, 0-5V analog quantity signals, a switch quantity acquisition channel for receiving 24V level switch quantity signals, and a communication message acquisition channel for receiving 485 communication message signals.

3. The wind turbine automatic lubrication pump state acquisition device according to claim 1 or 2, characterized in that: The wired connection between the wireless transmission module and the signal acquisition module adopts a shielded twisted pair or a BV hard wire connection.

4. The wind turbine automatic lubrication pump state acquisition device according to claim 1, characterized in that: The wireless transmission module adopts any modulation mode of LORA, zigbee, and Bluetooth, and supports the access of modbus, PPI, and profinet communication protocols.

5. The wind turbine automatic lubrication pump state acquisition device according to claim 1 is characterized in that: The wired transmission module supports TCP, UDP communication protocols and token ring network transmission, and is connected to external communication via network cables or optical fibers.

6. The wind turbine automatic lubrication pump state acquisition device according to claim 1 or 5, characterized in that: The wired connection between the wired transmission module and the signal acquisition module located in the cabin adopts a Category 5 Ethernet cable.

7. The wind turbine automatic lubrication pump state acquisition device according to claim 1 or 5, characterized in that: The wired signal transmission module is an optical or electrical port switch or an industrial switch with management function.

8. The wind turbine generator automatic lubrication pump state acquisition device according to claim 1, 2, 4 or 5, characterized in that: The wireless transmission module and signal acquisition module located in the rotating hub, and the wireless transmission module and signal acquisition module located in the cabin are respectively fixed in corresponding acquisition cabinets, and the acquisition cabinets are correspondingly installed on the bulkhead in the cabin of the wind turbine generator and on the bracket in the hub compartment of the wind turbine generator; The wired transmission module is installed in a communication cabinet at the bottom of the wind turbine tower.

9. A wind turbine automatic lubrication pump status monitoring system, characterized in that: include: The wind turbine automatic lubrication pump status acquisition device according to any one of claims 1 to 8 is used to acquire the status of the lubrication pumps in the rotating hub and nacelle of each wind turbine generator set; The remote monitoring module is connected to the wired transmission module of the automatic lubrication pump status monitoring device of each wind turbine, and is arranged on the operating table of the central control room of the wind power station to receive the status signals of the lubrication pumps in the rotating hub and the cabin, and display and store the values.

10. The wind turbine automatic lubrication pump state monitoring system according to claim 9, characterized in that: The remote monitoring module is any one of a computer, a server or an HMI touch screen with a display function.

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