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Calculation method of entire-life-cycle based transformer cost risk

A technology with full life cycle and calculation method, applied in calculation, instrument, special data processing application, etc., can solve problems such as high maintenance cost and transformer replacement.

Inactive Publication Date: 2013-03-27
STATE GRID ZHEJIANG ELECTRIC POWER +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Avoid maintaining the overall grid security but resulting in excessive maintenance c

Method used

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  • Calculation method of entire-life-cycle based transformer cost risk
  • Calculation method of entire-life-cycle based transformer cost risk
  • Calculation method of entire-life-cycle based transformer cost risk

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Experimental program
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Embodiment Construction

[0050]The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0051] According to the characteristics of transformer equipment, the present invention divides the transformer cycle cost into initial cost (C I ), operating cost (C O ), maintenance cost (C M ), failure cost (C F ) and scrapping costs (C D ). Therefore, the transformer life cycle cost can be expressed as:

[0052] LCC=C I +C O +C M +C F +C D

[0053] The initial cost mainly includes transformer purchase cost, installation cost, land renovation cost, commissioning cost and corresponding labor cost. The purchase cost includes equipment purchase cost, special tools and initial spare parts, etc. In order to simplify the calculation of the initial cost can be approximately replaced by the cost of purchasing eq...

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Abstract

The invention aims to provide an evaluation method of entire-life-cycle based transformer cost risk, aiming at the problem that researches made domestic and abroad at present mostly focus on the safety calculation of electric equipment, and rarely involve detailed evaluation of risk factors for influencing the entire-life-cycle cost. The method is used for carrying out quantization treatment on risk factors for influencing the entire-life-cycle cost of a transformer, establishing a corresponding evaluation system, and finding out the main problem for influencing performances of the transformer in a specific area. Therefore, the invention provides an evaluation method of entire-life-cycle based transformer cost risk. The method comprises the following steps that: according to the entire-life-cycle running characteristics of the transformer, the entire-life-cycle cost is divided into five parts, on the basis, an entire-life-cycle cost model of the transformer is obtained; and then according to characteristics of each part of cost, the risk factors for influencing the cost are recognized, and the risk factors are subjected to quantization treatment, and a corresponding index system is constructed.

Description

technical field [0001] The invention belongs to the technical field of electric equipment, and in particular relates to a method for evaluating the cost and risk of a transformer based on the whole life cycle. Background technique [0002] With the rapid development of my country's economy, the demand for electricity has increased rapidly, which objectively requires the rapid development of the power grid, which makes the tasks of operation and maintenance, renewal and transformation of power grid assets more and more arduous. Power grid is a typical capital and technology-intensive enterprise. In my country, power grid assets present the characteristics of rapid growth in grid scale, different business needs and management objectives of various departments, a high degree of rejuvenation of power grid assets, and equipment levels below the world-class level. In order to realize the efficient operation and management of grid assets during the rapid development of the grid, i...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 吴国威周辉盛献飞侯云鹤严明安刘皓明王冲
Owner STATE GRID ZHEJIANG ELECTRIC POWER
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