Capacitive type device auxiliary decision making system based on risk assessment and condition evaluation

Abstract

The invention discloses a capacitive type device auxiliary decision making system based on risk assessment and condition evaluation. The capacitive type device auxiliary decision making system comprises a data center composed of a line monitoring system, a technical supervision system, a dispatching SCADA system and a production MIS. The capacitive type device auxiliary decision making system is characterized in that the capacitive type device auxiliary decision making system further comprises a data acquisition interface module, a kernel processing module, a core service module condition assessment interface module and the like, wherein the data acquisition interface module is connected with the data center and used for acquiring data. The system is a layering and centralized framework, and defines the composition, an interface and a communication entity of a layering in details. An event trigger mechanism and a universal model with the data storage function are utilized, the requirements for data operation and processing of various devices are met, and the capacitive type device auxiliary decision making system has high cohesion and loose coupling performance. Related data are introduced into the system on the basis of a device condition evaluation guide rule and a risk assessment guide rule, and the risk degree of the device can be judged by judging the change of a dielectric loss angle of a capacitive type device; the device condition can be automatically evaluated, the working efficiency of launching the condition evaluation of the device is greatly improved, and meanwhile the misjudgment caused by excessive judgments in which people are involved is reduced.

Description

technical field [0001] The invention relates to the research and application of condition-based maintenance of high-voltage substation equipment in a smart grid, in particular to an auxiliary decision-making system for operation and maintenance strategies of high-voltage capacitive equipment. Background technique [0002] In recent years, with the rapid expansion of the grid scale, large-scale power outages in the system have occurred from time to time. The impact of a single equipment failure is not limited to itself, and may expand to the regional grid or even the entire system. Therefore, only considering the influence of equipment itself in maintenance decision-making without taking into account its influence on the system cannot meet the requirements of safe operation of the system. Fully considering the different positions of equipment in the system and the differences in the consequences of failures, the introduction of risk assessment can take into account both safet...

AI Technical Summary

Problems solved by technology

In practice, the frequency of the grid often fluctuates, and it is difficult to accurately maintain the sampling frequency of the sampling device at an integer multiple of the grid frequency, which also makes it impossible to obtain samples truncated throughout the cycle

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