CN219573299U - Real-time monitoring system of power cable of wind power generator - Google Patents
Real-time monitoring system of power cable of wind power generator Download PDFInfo
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- CN219573299U CN219573299U CN202321312151.1U CN202321312151U CN219573299U CN 219573299 U CN219573299 U CN 219573299U CN 202321312151 U CN202321312151 U CN 202321312151U CN 219573299 U CN219573299 U CN 219573299U
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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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Abstract
The utility model relates to the technical field of wind driven generators, in particular to a real-time monitoring system of a power cable of a wind driven generator, which comprises the following components: the power cable, the cable monitoring device and the emergency device are arranged at one side of the cabin; the input end of the power cable is electrically connected with the generator side, and the output end of the power cable is electrically connected with the frequency converter side of the wind driven generator; wherein the cable monitoring device comprises a strain sensor and a thermistor sensor; the strain sensors are adhered to the surface of the power cable, a plurality of strain sensors are arranged at intervals, the strain sensors are used for measuring deformation data of the power cable, the thermistor sensors are arranged in a plurality, and the thermistor sensors are fixedly installed on the surface of the power cable, the inside of the insulating sleeve and the joint and used for measuring real-time temperature of the power cable.
Description
Technical Field
The utility model relates to the technical field of wind driven generators, in particular to a real-time monitoring system for a power cable of a wind driven generator.
Background
The power cable is generally a cable specially used for transmitting electric energy generated by the wind driven generator, the electric energy generated by the wind driven generator is transmitted to the input end of the converter, and the converter rectifies, inverts, boosts and the like the transmitted electric energy and finally outputs the electric energy to the power system. The power cable of the wind driven generator is taken as an important component of electric energy transmission, the safety guarantee of the power cable is not neglected, so that the accident problem of the power cable is mainly concentrated on the problem of ignition caused by the instant current increase caused by certain equipment or the temperature mutation caused by other reasons, the means adopted for monitoring the ignition problem are concentrated on the camera monitoring at present, the camera monitoring usually needs operation processing, and a large amount of equipment is required to be consumed in the process of transmission back to the monitoring end, and the problem of high cost exists. Based on the above problems, we have devised a real-time monitoring system for a power cable of a wind power generator.
Disclosure of Invention
The utility model aims to provide a real-time monitoring system for a power cable of a wind driven generator, which monitors the temperature change of the power cable through a thermistor sensor, has low cost, can discover the line temperature change in time, reduces the risk of fire, and also reduces the running cost by adopting an emergency device to be matched with the thermistor temperature sensor, and can provide more accurate maintenance and maintenance, thereby reducing unnecessary maintenance cost.
The embodiment of the utility model is realized by the following technical scheme:
a real-time monitoring system for a wind power generator power cable, comprising: the power cable, the cable monitoring device and the emergency device are arranged at one side of the cabin; the input end of the power cable is electrically connected with the generator side, and the output end of the power cable is electrically connected with the frequency converter side of the wind driven generator; wherein the cable monitoring device comprises a strain sensor and a thermistor sensor; the strain sensors are adhered to the surface of the power cable, a plurality of strain sensors are arranged at intervals, the strain sensors are used for measuring deformation data of the power cable, the thermistor sensors are arranged in a plurality, and the thermistor sensors are fixedly installed on the surface of the power cable, the inside of the insulating sleeve and the joint and used for measuring real-time temperature of the power cable.
Optionally, the cable monitoring device further comprises a vibration sensor, wherein the vibration sensor is fixedly installed at the joint of the power cable and is used for measuring the vibration condition of the joint of the power cable.
Optionally, the cable monitoring device further includes a capacitance sensor, where the capacitance sensor includes a plurality of capacitance sensors, and is consistent with the installation mode of the strain sensor, and is used for measuring the capacitance change of the surface of the power cable.
Optionally, the emergency device comprises a main breaker fixedly installed at the input end of the frequency converter side for cutting off the power supply of the wind driven generator.
Optionally, the emergency device comprises a temperature sensor, a smoke sensor and a spray fire extinguishing device; the temperature sensor and the smoke sensor are respectively and fixedly arranged in the engine room, the spray fire extinguishing device is fixedly arranged at the inner side wall of the engine room and is provided with a plurality of spray fire extinguishing devices, the spray fire extinguishing devices are fixedly arranged from top to bottom according to the spray area of the spray fire extinguishing devices, and the spray openings of the spray fire extinguishing devices are opposite to the power cable.
Optionally, the spray fire extinguishing device is specifically an electric control assembly.
Optionally, the intelligent fire extinguishing system further comprises a control box, wherein the control box is fixedly arranged at the outer side wall of the engine room and comprises a communication assembly, and the communication assembly is respectively in communication connection with the strain sensor, the thermistor sensor, the vibration sensor, the capacitance sensor, the main circuit breaker, the temperature sensor, the smoke sensor and the spray fire extinguishing device.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
the utility model monitors the temperature change of the power cable through the thermistor sensor, has low cost, can discover the line temperature change in time, reduces the risk of fire, and adopts the emergency device to be matched with the thermosensitive temperature sensor, thereby reducing the operation cost, providing more accurate maintenance and maintenance, and further reducing unnecessary maintenance cost.
Drawings
FIG. 1 is a schematic diagram of a real-time monitoring system for a power cable of a wind turbine according to the present utility model;
FIG. 2 is a schematic diagram of the connection relationship of control boxes in the real-time monitoring system of the power cable of the wind power generator;
legend: 1-a cabin; 2-a power cable; 3-a cable monitoring device; 4-emergency device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
As shown in fig. 1, the present utility model provides one of the embodiments: a real-time monitoring system for a wind power generator power cable, comprising: the power cable, the cable monitoring device and the emergency device are arranged at one side of the cabin; the input end of the power cable is electrically connected with the generator side, and the output end of the power cable is electrically connected with the frequency converter side of the wind driven generator; wherein the cable monitoring device comprises a strain sensor and a thermistor sensor; the strain sensors are adhered to the surface of the power cable, a plurality of strain sensors are arranged at intervals, the strain sensors are used for measuring deformation data of the power cable, the thermistor sensors are arranged in a plurality, and the thermistor sensors are fixedly installed on the surface of the power cable, the inside of the insulating sleeve and the joint and used for measuring real-time temperature of the power cable.
In the above application, the application scenario set in this embodiment may specifically adjust the number of each sensor according to the size of the wind turbine. The power cable is mainly used as an electric energy transmission bridge for connecting one side of the wind driven generator with one side of the frequency converter and is used as a transmission channel of main electric energy, so that the safety of the power cable is not neglected, the power cable is used as a main implementation mode, the thermistor sensor is directly adhered and installed on the surface of the power cable, in an insulating sleeve of the power cable and at a joint position, so that the real-time monitoring of the temperature change of the power cable is realized, an alarm can be sent out when the temperature of the power cable is too high in the setting of the embodiment by installing an alarm and the like, the too high temperature is mainly determined according to the highest bearing temperature of the power cable of the wind driven generator, in general, the temperature is between 85% and 95% of the highest bearing temperature, the embodiment is set to 76.5 ℃ and is used for triggering alarm when the temperature is too high, faults caused by overload and overheat of the power cable can be prevented, and the safety is improved. The mounting mode of the strain sensor is that the strain sensor is directly adhered to the surface of the power cable, and the strain sensor comprises a cable connection part and a stress part, wherein the power cable is usually fixed on the inner side wall of the engine room through a cable support, and the stress part is the fixing position of the cable support and the joint part and is used for measuring the deformation and the deformation of the power cable, so that the damage caused by the fracture or the deformation of the power cable can be found in time.
Further, the cable monitoring device further comprises a vibration sensor fixedly mounted at the joint of the power cable for measuring vibration conditions at the joint of the power cable.
In this embodiment, the vibration sensor is mainly installed at the joint of the power cable, and can detect the vibration amount of the power cable, and it can be understood that the vibration amount depends on factors such as the length, diameter, type and environment of the power cable, where the vibration amount is not limited, and the vibration amount per minute is 0.25m/s2, which is regarded as excessive vibration, so that the problem of abrasion and loosening at the joint of the power cable can be found in time, and the safety of the power cable is further improved.
Still further, the cable monitoring device further comprises a plurality of capacitance sensors, wherein the capacitance sensors are consistent with the installation mode of the strain sensors and are used for measuring capacitance changes of the surface of the power cable.
The capacitive sensor of this embodiment is mainly installed on the surface of power cable, can detect whether power cable is humid environment, can effectually detect whether power cable is damaged by water or liquid.
Specifically, the emergency device comprises a main breaker which is fixedly arranged at the input end of the frequency converter side and used for cutting off the power supply of the wind driven generator.
In the running process of the wind driven generator, if the condition of overhigh temperature is detected through the thermistor sensor, the main breaker can be closed through a button on the control box or the unit remote controller, so that the power supply of the power cable is cut off, and the fire extinguishing treatment is convenient.
More specifically, the emergency device comprises a temperature sensor, a smoke sensor and a spray fire extinguishing device; the temperature sensor and the smoke sensor are respectively and fixedly arranged in the cabin, the spray fire extinguishing device is fixedly arranged at the inner side wall of the cabin and is provided with a plurality of spray fire extinguishing devices, the spray fire extinguishing devices are fixedly arranged from top to bottom according to the spray area of the spray fire extinguishing devices, the spray openings of the spray fire extinguishing devices are opposite to the power cable, and the spray fire extinguishing devices are specifically electric control components.
The temperature sensor and the smoke sensor are only used as supplementary sensors for detecting fire conditions in the embodiment, the installation position of the temperature sensor and the smoke sensor is not limited, the spray fire extinguishing device is used for timely extinguishing the fire conditions of the power cable as long as the cabin temperature and the smoke conditions can be detected, the spray fire extinguishing device is used for rapidly extinguishing the fire conditions of the power cable, meanwhile, other equipment cannot be damaged, and the spray fire extinguishing device adopting the electric control assembly can improve the convenience and the high efficiency of use.
As shown in fig. 2, the fire-extinguishing system further comprises a control box, wherein the control box is fixedly arranged at the outer side wall of the cabin, and comprises a communication assembly, and the communication assembly is respectively in communication connection with the strain sensor, the thermistor sensor, the vibration sensor, the capacitance sensor, the main circuit breaker, the temperature sensor, the smoke sensor and the spray fire-extinguishing device.
In this embodiment, the control box is used for controlling the external device of this embodiment to power cable, and it is connected with each sensor and emergency device mainly through communication transmission to the control box can interconnect with staff's terminal according to actual need, the remote control of being convenient for and detection.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a real-time monitoring system of wind power generator power cable which characterized in that includes: the power cable, the cable monitoring device and the emergency device are arranged at one side of the cabin; the input end of the power cable is electrically connected with the generator side, and the output end of the power cable is electrically connected with the frequency converter side of the wind driven generator; wherein the cable monitoring device comprises a strain sensor and a thermistor sensor; the strain sensors are adhered to the surface of the power cable, a plurality of strain sensors are arranged at intervals, the strain sensors are used for measuring deformation data of the power cable, the thermistor sensors are arranged in a plurality, and the thermistor sensors are fixedly installed on the surface of the power cable, the inside of the insulating sleeve and the joint and used for measuring real-time temperature of the power cable.
2. The real-time monitoring system of a power cable of a wind power generator according to claim 1, wherein the cable monitoring device further comprises a vibration sensor fixedly installed at a joint of the power cable for measuring vibration conditions at the joint of the power cable.
3. The real-time monitoring system of a wind power generator power cable according to claim 1, wherein the cable monitoring device further comprises a plurality of capacitance sensors, and the capacitance sensors are consistent with the installation mode of the strain sensors and are used for measuring capacitance changes of the surface of the power cable.
4. A real time monitoring system of a wind power generator power cable according to any of claims 1-3, characterized in that the emergency device comprises a main breaker fixedly mounted at the input end of the frequency converter side for cutting off the power supply of the wind power generator.
5. The real-time monitoring system of a wind power generator power cable according to claim 4, wherein the emergency device comprises a temperature sensor, a smoke sensor and a spray fire extinguishing device; the temperature sensor and the smoke sensor are respectively and fixedly arranged in the engine room, the spray fire extinguishing device is fixedly arranged at the inner side wall of the engine room and is provided with a plurality of spray fire extinguishing devices, the spray fire extinguishing devices are fixedly arranged from top to bottom according to the spray area of the spray fire extinguishing devices, and the spray openings of the spray fire extinguishing devices are opposite to the power cable.
6. The real-time monitoring system of a wind turbine power cable according to claim 5, wherein the spray fire extinguishing device is in particular an electrical control assembly.
7. The real-time monitoring system of a wind turbine power cable of claim 6, further comprising a control box fixedly arranged at an outer side wall of the nacelle, the control box comprising a communication assembly in communication connection with the strain sensor, the thermistor sensor, the vibration sensor, the capacitance sensor, the main circuit breaker, the temperature sensor, the smoke sensor, and the spray fire extinguishing device, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321312151.1U CN219573299U (en) | 2023-05-26 | 2023-05-26 | Real-time monitoring system of power cable of wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321312151.1U CN219573299U (en) | 2023-05-26 | 2023-05-26 | Real-time monitoring system of power cable of wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219573299U true CN219573299U (en) | 2023-08-22 |
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ID=87669626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321312151.1U Active CN219573299U (en) | 2023-05-26 | 2023-05-26 | Real-time monitoring system of power cable of wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219573299U (en) |
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2023
- 2023-05-26 CN CN202321312151.1U patent/CN219573299U/en active Active
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