State evaluation method of hydropower plant computer monitoring system

Abstract

The invention discloses a state evaluation method of a hydropower plant computer monitoring system. The method comprises a step of respectively initiating an upper computer state evaluation model and a lower computer state evaluation model which are provided with hydropower plant computer monitoring systems and establishing the corresponding classification diagnosis evaluation table, respectively detecting the actual degradation degree of each evaluation program and obtaining a basic deduction value, and multiplying the basic deduction value with the weight coefficient corresponding to the evaluation program to obtain the actual deduction value of the evaluation program, a step of comparing the actual deduction value of each evaluation program in each program classification with the classification diagnosis evaluation table and judging the diagnosis state corresponding to each program classification, and a step of obtaining the diagnosis state with the highest severity degree as the final evaluation result of the upper computer/lower computer of the hydropower plant computer monitoring system. According to the state evaluation method, the running state of the hydropower plant computer monitoring system can be comprehensively evaluated, the influence on a hydropower plant and even the stable operation of a power system by fault expansion is prevented, and the examination and maintenance cost can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of reliability detection and analysis of a hydropower plant, in particular to a state evaluation method for a computer monitoring system of a hydropower plant. Background technique [0002] With the deepening of unattended and few-person-on-duty work and the higher and higher requirements of the power grid for the coordination ability of the hydropower plant's machine and network, the importance of the computer monitoring system of the hydropower plant is becoming more and more obvious. Once the computer monitoring system of the hydropower plant fails, it will seriously affect the safety of the hydropower plant equipment and even threaten the safety of the power grid. On August 17, 2009, Russia's largest hydropower station, the Sayan-Shushenskaya Hydropower Station, suffered serious casualties, serious damage to units and workshops, and a catastrophic accident involving complete shutdown of the power station...

AI Technical Summary

Problems solved by technology

At present, most of the hydropower plants have not carried out condition assessment work. Even if a few hydropower plants have carried out condition assessment, they only carry out the condition diagnosis of electrical primary equipment, hydraulic turbines and generators by referring to the condition assessment method of power transmission and transformation equipment, while the transmission and transformation equipment condition assessment method is carried out. The state evaluation method of substation equipment cannot adapt to the computer monitoring system of hydropower plant at all

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