Method and system for identifying abnormal state of main and auxiliary equipment of thermal power unit
A thermal power unit and equipment status technology, applied in the field of power systems, can solve the problems of unrecognizable abnormal status and insufficient fault samples, etc., and achieve high practicability
Inactive Publication Date: 2018-08-10
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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[0005] This application provides a method and system for identifying abnormal states of main and auxiliary equipment of thermal power units, so as to solve the problem that the existing methods for identifying abnormal states of main and auxiliary equipment of thermal power units have insufficient fault samples and cannot identify abnormal states
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[0074] The technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0075] In the following description, a lot of specific details are set forth in order to fully understand the application, but the application can also be implemented in other ways that are different from the description again, and those skilled in the art can do similar without violating the connotation of the application Generalization, therefore, this application is not limited by the specific examples disclosed below.
[0076] see figure 1 , which is a...
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The invention discloses a method and system for identifying an abnormal state of main and auxiliary equipment of a thermal power unit, and belongs to the field of an electric power system. According to the invention, an expected value and target interval value of the main and auxiliary equipment of the thermal power unit are calculated according to a normal state evidence regression model throughutilizing a typical sample set of the main and auxiliary equipment of the thermal power unit and an established evidence base reflecting the operation state of the main and auxiliary equipment of thethermal power unit, and the real-time operation state of the main and auxiliary equipment of the thermal power unit is identified through judging whether the expected value falls in the target interval value or not, so that the practicability is high.
Description
technical field [0001] The present application relates to the field of power systems, and in particular to a method and system for identifying abnormal states of main and auxiliary equipment of a thermal power unit. Background technique [0002] The main and auxiliary equipment of the thermal power unit is the equipment used in the thermal power plant. The main and auxiliary equipment of the thermal power unit includes boilers, steam turbines, generators, feed water pumps, etc., and its function is to complete the conversion process from thermal energy to mechanical energy to electrical energy. The coupling and complexity between the main and auxiliary equipment of the thermal power unit determine that the thermal power plant is a production site with a high failure rate and a great failure hazard. Therefore, it is necessary to identify the abnormal state of the main and auxiliary equipment of the thermal power unit. [0003] At present, the identification method of the abno...
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IPC IPC(8): G06K9/62G06Q10/06G06Q50/06
CPCG06Q10/0639G06Q50/06G06F18/2113G06F18/257G06F18/25
Inventor 赵明沈发荣梁俊宇李浩涛李孟阳邱亚林
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST