Cable conductor temperature monitoring method and device, cloud server, and cable conductor temperature monitoring system
A cable conductor and monitoring system technology, applied in the electric power field, can solve problems such as inability to continuously monitor temperature, inability to accurately judge cables, inability to continue monitoring, etc.
Active Publication Date: 2018-12-21
罗孚电气(厦门)有限公司
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Problems solved by technology
Among them, infrared temperature measurement requires staff to use instruments to measure and analyze the temperature of a certain part of the cable on site. This method is expensive to measure, wastes a lot of manpower, and cannot continuously monitor the temperature
Fiber optic cable temperature measurement is expensive for cables that have already been laid, and can only be measured when the cable under test is well laid. If the cable breaks or fails, it cannot continue to monitor
The linear temperature measuring cable can only detect the regional temperature of the cable, and cannot accurately determine which part of the cable has a problem, and requires a large number of communication cables
Method used
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[0086] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.
[0087] figure 1 A schematic diagram of a topology structure of a cable conductor temperature monitoring system provided by an embodiment of the present invention. Wherein, the cable in this embodiment includes a cable conductor, an insulating layer covering the cable conductor, and at least one layer of sheath. The thermal model reference of the cable in this example f...
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The embodiment of the invention discloses a cable conductor temperature monitoring method and device, a cloud server and a cable conductor temperature monitoring system. The cable conductor temperature monitoring method comprises the following steps that the real-time temperatures, collected in real time by a temperature measuring terminal, of an insulation layer in a cable, all sheaths and the surface of the cable are received; and the real-time temperature of a cable conductor is determined based on the acquired real-time temperatures, the pre-stored parameters of the insulation layer and the sheath layer in the cable and the preset initial temperatures of all the layers of the cable in a transient state, wherein the parameters comprise losses, thermal capacitance and thermal resistance.According to the cable conductor temperature monitoring method and device, the cloud server and the cable conductor temperature monitoring system, the real-time temperature of the cable conductor isacquired according to the parameters of all the layers of the cable under the operating state, then faults in the cable operation process are timely discovered by combining with a forecast alarm system, and therefore economic losses caused by cable faults are reduced and even avoided.
Description
technical field [0001] The invention relates to the field of electric power technology, and in particular, to a method and device for monitoring the temperature of a cable conductor, a cloud server, and a cable conductor temperature monitoring system. Background technique [0002] As a common power equipment, cable lines are widely used in various power supply systems. Whether the running state of the cable line is normal or not directly affects the stability of the entire power supply system. Therefore, the monitoring of the running state of the cable line is very important. [0003] Relying on manpower to handle the operation and maintenance of cable lines, there are problems such as shortage of maintenance and installation personnel and huge maintenance workload. At the same time, since the temperature of the cable conductor can accurately reflect the insulation state and current carrying capacity of the cable, the conductor temperature of the cable becomes the main basi...
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IPC IPC(8): G01K13/00
CPCG01K13/00
Inventor 刘宗健张振兵
Owner 罗孚电气(厦门)有限公司