Risk index-containing transformer full-life cycle cost probability assessment method

A technology with full life cycle and risk indicators, applied in instruments, special data processing applications, electrical digital data processing, etc., can solve the problem that the uncertainty factors of transformers cannot be fully taken into account

Inactive Publication Date: 2016-09-28
STATE GRID TIANJIN ELECTRIC POWER +1
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2) Most of the current life-cycle cost optimization problems of transformers are based on deterministic modeling methods, which cannot fully take into account various unknown and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Risk index-containing transformer full-life cycle cost probability assessment method
  • Risk index-containing transformer full-life cycle cost probability assessment method
  • Risk index-containing transformer full-life cycle cost probability assessment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The method for assessing the life cycle cost probability of a transformer with risk indicators provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] The method for assessing the probability of transformer life cycle cost including risk indicators provided by the present invention includes the following steps in order:

[0056] Step 1) determine the triangular distribution parameters of each random variable required for simulation, and table 1 shows part of the triangular distribution parameters, while determining the maximum number of times N of simulation;

[0057] Table 1. Triangular distribution parameters of each random variable required for simulation

[0058]

[0059] Step 2) using the triangular distribution function to calculate the probability of each of the above-mentioned triangular distribution parameters to obtain the random variable of the triangular distribut...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a risk index-containing transformer full-life cycle cost probability assessment method. The method comprises the steps of determining triangular distribution parameters of random variables required for simulation, and determining a maximum simulation frequency N at the same time; calculating probabilities of the triangular distribution parameters by utilizing a triangular distribution function to obtain the random variables of the triangular distribution parameters; constructing a transformer full-life cycle cost probability assessment model by utilizing the random variables of the triangular distribution parameters; calculating the transformer full-life cycle cost probability assessment model by utilizing a Monte-Carlo simulation method, stopping a Monte-Carlo simulation process when a standard deviation (R<0.1) or a simulation frequency reaches the maximum frequency N, and recording full-life cycle cost calculation results obtained by simulations in the process; analyzing the full-life cycle cost calculation results to obtain a transformer full-life cycle cost probability distribution result; and the like. According to the method, an assessment result can provide an effective decision-making basis for transformer model selection and assets management.

Description

technical field [0001] The invention belongs to the technical field of power equipment performance evaluation, and in particular relates to a method for evaluating the probability of cost in the whole life cycle of a transformer including risk indicators. Background technique [0002] The safe operation of power transformers is one of the important lines of defense to ensure the reliable operation of the power grid. The design and selection of the transformer will have an important impact on its operating life and economy. Correct type selection can not only save one-time investment, but also greatly reduce operating costs; unreasonable type selection will lead to waste of funds and even cause safety accidents. At present, the State Grid Corporation of China is actively promoting the management of transformer life cycle cost (Life Cycle Cost, LCC). The life cycle cost of a transformer includes not only the manufacturing cost of transformer equipment selection, design, manu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 李盛伟梁刚韩晓罡王楠范须露王梦
Owner STATE GRID TIANJIN ELECTRIC POWER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products