A substation infrared thermal imaging online monitoring method and system
An infrared thermal imaging and substation technology, which is applied in the field of infrared thermal imaging monitoring of substations, can solve problems such as false alarms, false alarms, early recognition of abnormal heating of power equipment, etc.
Active Publication Date: 2020-11-13
SICHUAN HUADONG ELECTRICAL GRP
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However, this method is prone to false alarms. For example, if a sudden temperature point higher than the temperature threshold is obtained in real time, false alarms will occur, and defects such as abnormal heating of power equipment cannot be recognized early.
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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0039] The descriptions involving "first", "second" and so on in the invention are for descriptive purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.
[0040] The infrared thermal image is collected by thermal imaging equipment, and th...
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The invention discloses a transformer substation infrared thermal imaging online monitoring method and a system. The method comprises the steps: obtaining infrared abnormal heating temperature data ofeach heating area of each historical infrared abnormal heating image; calculating a constant heating fault state data model; obtaining a heating temperature safety line value of each heating area; calculating a first similarity value of each heating area between real-time heating temperature data and an abnormal heating fault state data model; if the current first similarity values of the two ormore heating areas are all greater than the heating temperature safety line values of the corresponding heating areas, or, if the current first similarity value of one heating area and the first similarity value before the heating area are both larger than the heating temperature safety line value of a corresponding heating area, sending out an alarm prompt on abnormal heating of power equipment,and outputting a corresponding real-time infrared image and the current real-time heating temperature data. Abnormal heating of the power equipment can be forecasted in advance, and false alarm can beavoided.
Description
technical field [0001] The invention relates to the technical field of infrared thermal imaging monitoring of substations, in particular to an online monitoring method and system of infrared thermal imaging of substations. Background technique [0002] The substation has always been a backbone enterprise in the electric power sector, responsible for the production and construction of power grid lines. The electrical equipment in the station is dense, the lines are complicated, and there are countless nodes and large transformers. It is the key department for the safety of the electric power sector. In order to ensure the safety of the internal operation of the substation, a lot of manpower, material resources and funds are spent every year. [0003] The power system is different from other industries. Maintenance cannot interrupt production at will, so it is necessary to make sufficient predictions before the accident occurs—to solve the fault before the accident occurs, and...
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IPC IPC(8): G01J5/00
CPCG01J5/0096G01J2005/0077
Inventor 虞文权
Owner SICHUAN HUADONG ELECTRICAL GRP