Extension theory-based hydraulic power plant security evaluating method

Abstract

The invention relates to an extension theory-based hydraulic power plant security evaluating method and belongs to the field of application hydraulic power plant safety evaluating technologies. According to the method, a comprehensive index system for hydraulic power plant security evaluation is built and mainly comprises four criterion layers of production equipment, power plant buildings, metalstructures and safety measures and management; an extenics matter element model for hydraulic power plant safety evaluation is built; security performance of a hydraulic power plant is classified intofour grades of excellent, good, alert and severe so as to build classical domain and joint field model models for an evaluation system, a analytical hierarchy method is adopted for determining weightcoefficients of all factors, a weighted summation mode is adopted, degrees of relevance between a material element to be evaluated to different grades are calculated, and a grade to which the safetyperformance of the hydraulic power plant belongs can be determined according to a maximum value of the relevance; via the method disclosed in the invention, the safety performance of the hydraulic power plant can be evaluated in a scientific and objective way, basis can be provided for reasonable arrangement of overhauls for the hydraulic power plant, and reliable operation of the hydraulic powerplant can be ensured.

Description

technical field [0001] The invention belongs to the application field of hydropower plant safety evaluation technology, and particularly relates to a hydropower plant safety evaluation method based on the theory of extensibility. Background technique [0002] Hydropower resource is a kind of renewable resource. The use of this resource has low power generation cost, high efficiency and stable power supply performance. It is a better resource in the development of energy. At present, my country's hydropower enterprises are developing rapidly, which is a powerful supplement to my country's energy resources. The completion of hydropower stations provides important support for the safe construction and sustainable development of society. However, due to the particularity of the construction site of hydropower, its Involving flood control, construction, etc., if not handled properly, it may also be a dangerous source of major disasters. Therefore, it is necessary to strengthen th...

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Problems solved by technology

[0003] Hydropower station safety assessment is a complex concept. Its assessment value is not only affected by several indicators, but by a series of indicators, and the relationship between indicators is not equal. It is a layered comprehensive system. Traditional The evaluation method cannot deal with various uncertain factors and subjective factors, and cannot obtain satisfactory evaluation results.

[0004] In the prior art, there is no feasible method for evaluating the safety of hydropower plants, and a relatively comprehensive and unified safety evaluation index system is lacking, which is not conducive to the long-term stable operation of hydropower plants, and adds a certain degree of difficulty to the safety evaluation of hydropower plants

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