Power transmission line operation state comprehensive evaluation method based on AHP-CRITIC
An AHP-CRITIC, transmission line technology, applied in the field of power transmission and distribution, can solve the problems of manual participation, ignoring the objectivity of the data, and the evaluation system is not perfect, so as to achieve a wide range of application prospects and avoid the effect of weight imbalance
Pending Publication Date: 2021-11-05
CHANGCHUN INST OF TECH +2
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
These studies have achieved good results, but the research on the overall operation status of transmission lines is still in its infancy
Lin Yi and Li Lihui respectively used the Delphi method and the AHP to study the operation status indicators of transmission lines. These two evaluation methods rely on questionnaire surveys and expert scoring methods, which are highly subjective; Zou Renhua, Wang Yichao, Deng Yuanjing et al. used the AHP to determine the weight of the index, and then evaluated the status of the transmission line through the fuzzy evaluation method. Although this simplified the evaluation process, it still required manual participation and could not avoid the influence of subjective factors; Zhang Han of Kunming University of Science and Technology proposed a The evaluation method of transmission line operation status based on association rule method and Bayesian network and proved its feasibility
It can be seen that at this stage, there are few studies on the evaluation of the overall operation status of transmission lines, the evaluation system is not perfect, and it mainly relies on manual participation, which is highly subjective. The evaluation results lack data support and ignore the objectivity of data.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0053] Such as figure 1 As shown, an AHP-CRITIC-based comprehensive evaluation method for the operation status of transmission lines includes the following steps:
[0054] Step 1: Build a hierarchical structure model of transmission line operation status indicators, set the transmission line operation status as the target layer, set the line unit as the index of the criterion layer (level I index), and set the state quantity of each line unit as the index of the evaluation layer (level II index) .
[0055] Set the operation status of the transmission line as the target layer, set eight line units such as foundation, tower, ground wire, insulator string, fittings, grounding device, auxiliary facilities and channel environment as the criterion layer index (level I index), and set each line unit The state quantity is an index of the evaluation layer (level II ...
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
Login to View More Abstract
The invention relates to a power transmission line operation state comprehensive evaluation method based on AHP-CRITIC. The method comprises the following steps: constructing a power transmission line operation state index hierarchical structure model; constructing a discrimination matrix; checking the consistency; calculating a criterion layer index weight; calculating an evaluation layer index weight; calculating the subjective weight of each index; establishing a line unit state grade scoring standard; calculating the variation degree of each index; calculating a correlation coefficient, an information amount and a combination weight of each index; calculating a power transmission line operation state evaluation result. According to the invention, the advantages of the AHP method and the CRITIC method are fully combined, objective reality is better met, and the invention has a guiding significance for evaluation and early warning of the operation state of the power transmission line.
Description
technical field [0001] The invention relates to the technical field of power transmission and distribution, in particular to an AHP-CRITIC-based comprehensive evaluation method for the running state of a power transmission line. Background technique [0002] As an important channel for transmitting electric energy in the power system, the transmission line is important to monitor and evaluate the operation status of the overhead transmission line to maintain the safe and stable operation of the power system. At present, there are corresponding industry norms for the evaluation of the operation state of transmission lines. By constructing different state quantities of transmission lines and specifying the state level, the evaluation results are obtained by scoring and calculating each state quantity according to the field measured data. This evaluation method has good feasibility and accurate evaluation results, but it is highly subjective. With the continuous expansion of t...
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
Login to View More IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 王敏珍戴文涛郭剑凯赵立英张益霖李成齐恩铁张广新郑研聂路袁志成王新珩
Owner CHANGCHUN INST OF TECH