Reliability evaluation of high voltage direct current transmission protection system based on interval analytic hierarchy process and interval entropy method mixed weighting

Wang, Ting; Du, Zhen’an; Zhang, Kanjun; Chen, Kun; Xiao, Fan; Ye, Pangqi

doi:10.1016/j.egyr.2021.02.017

Cited by 17 publications

(5 citation statements)

References 2 publications

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“…The analytic hierarchy process and entropy method are two common weight determination methods [21,22] . The former focuses on the subjective will of experts in scoring and has specific human defects; the latter objectively determines the weights based on the variability of the indicators, which requires high quality of indicator data.…”

Section: Weights Of Subjective and Objective Comprehensive Indicatorsmentioning

confidence: 99%

Research on the Evaluation Model of Physical Asset Management Maturity of China's Inter-provincial Grid Enterprises

Zhang¹,

Xia²,

Xu³

et al. 2023

Proceedings of the 4th International Conference on Economic Management and Model Engineering, ICEMME 2022, November 18-20, 2022

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A comprehensive evaluation of the physical assets of power grid enterprises is conducive to promoting the management of assets of enterprises and avoiding the loss and waste of state-owned assets. This paper collects the objective statistics of the enterprise and the subjective scoring data of the experts in the index system for the past 5 years, and determines the comprehensive weight of each index through the combination of subjective and objective weights. Grey correlation and topsis method is used to establish a dynamic evaluation model for objective data to capture the trend of the comprehensive value of physical assets, and subjective data is used to establish a maturity model to calculate the maturity level of physical assets. In this way, the results of dynamic assessment and maturity assessment are combined to obtain the results of grid enterprise asset evaluation under multi-dimensional dynamic perspective. Finally, an empirical analysis using a grid data shows that the company should learn from the scientific management experience of 2016, maintain a high level of asset structure and utilization efficiency, and focus on improving the optimal management of asset decommissioning and health.

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Section: Weights Of Subjective and Objective Comprehensive Indicatorsmentioning

confidence: 99%

Research on the Evaluation Model of Physical Asset Management Maturity of China's Inter-provincial Grid Enterprises

Zhang¹,

Xia²,

Xu³

et al. 2023

Proceedings of the 4th International Conference on Economic Management and Model Engineering, ICEMME 2022, November 18-20, 2022

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show abstract

“…Combined with the wire temperature data, the theoretical load flow of the high-voltage transmission line wire is calculated, and the current wire load is judged according to certain criteria, so as to achieve effective monitoring of the transmission line, the specific implementation process is shown below [9][10][11][12][13] .…”

Section: High-voltage Transmission Line Dynamic Capacity Increase Mon...mentioning

confidence: 99%

Research on the design of high-voltage transmission line monitoring based on self-grouping MAC access

Ma,

Jia,

Liu

et al. 2023

Third International Conference on Signal Image Processing and Communication (ICSIPC 2023)

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The current conventional high-voltage transmission line monitoring method mainly obtains line parameters through fiber optic sensing equipment, and analyzes the parameters to grasp the actual load situation of the line, which leads to poor monitoring effect due to the lack of design of load flow threshold. In this regard, a monitoring method for high-voltage transmission lines based on self-assembled MAC access is proposed. By constructing the reward function, the routing monitoring algorithm is designed and the image monitoring module structure is designed. Combined with the heat balance equation, the line load flow value is calculated and the judgment of the line load condition is realized by setting the flow threshold. In the experiments, the monitoring performance of the proposed method is verified. The experimental results show that when the proposed method is used for transmission line monitoring, the system data loss rate is low and has a more desirable monitoring effect.

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“…The architecture of the DIoT includes four layers -end, pipe, edge, and cloud -which are respectively the perception layer, network layer, convergence layer, and application layer (Wang et al, 2021). For this reason, the architecture of the court status assessment system based on the DIoT is shown in Figure 1.…”

Section: Design Of Equipment Condition Evaluation System In Court Bas...mentioning

confidence: 99%

Health Assessment Method of Equipment in Distribution Court Based on Big Data Analysis in the Framework of Distribution Network of Things

Long

Wang

Liang³

et al. 2023

International Journal of Information Technologies and Systems Approach

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Focusing on the problem that the quantity of equipment in the distribution court is huge and the operation status is difficult to reliably control, a method of equipment health status assessment in the distribution court based on big data analysis in the distribution network of things architecture is proposed. Firstly, based on the internet of things for power distribution, the evaluation system of equipment status in the distribution court is designed to ensure the efficient analysis of massive data through the cooperation of cloud center and edge computing. Then, at the edge of the system, the grey correlation analysis algorithm and the Granger hypothesis method are used to obtain the correlation and causality of the failure rate of equipment components and the influencing factors so as to understand the accurate failure rate of equipment components. Finally, the weight of factors affecting the equipment failure rate is identified by using the dynamic variable weight analytic hierarchy process, and it is corrected in the cloud center; and the overall health degree of the equipment in the distribution court is obtained through transformation. Based on the selected station area model, the proposed method is experimentally demonstrated. The results show that it can accurately obtain the real-time health status of the court equipment and the evaluation accuracy is close to 98%, which provides theoretical support for the operation and maintenance of the distribution network.

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Reliability evaluation of high voltage direct current transmission protection system based on interval analytic hierarchy process and interval entropy method mixed weighting

Cited by 17 publications

References 2 publications

Research on the Evaluation Model of Physical Asset Management Maturity of China's Inter-provincial Grid Enterprises

Research on the Evaluation Model of Physical Asset Management Maturity of China's Inter-provincial Grid Enterprises

Research on the design of high-voltage transmission line monitoring based on self-grouping MAC access

Health Assessment Method of Equipment in Distribution Court Based on Big Data Analysis in the Framework of Distribution Network of Things

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