Discussion on Operation and Maintenance Safety and Equipment Maintenance of Smart Substation

2021 ◽  
Keyword(s):  
Equipment Maintenance ◽  
Operation And Maintenance ◽  
Smart Substation

scholarly journals Networked Closed-Loop Model for Smart On-Site Maintenance of Substation Equipment Using Mobile Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Zhenxin Feng ◽  
Yi Jiang ◽  
Yuting Luo ◽  
Kun Zhao ◽  
Guocheng Ding ◽  
...  
Keyword(s):  
Real Time ◽  
Mobile Networks ◽  
Closed Loop ◽  
Equipment Maintenance ◽  
Loop Model ◽  
Data Centre ◽  
Operation And Maintenance ◽  
Bidirectional Communication ◽  
Substation Equipment ◽  
Maintenance Model

This paper introduces a networked closed-loop model for smart on-site maintenance of substation equipment using mobile networks, which is composed of a field-side Smart Operation and Maintenance (SOM) box with its related APP and a centre-side system platform for Operation and Maintenance (OM). As a bridge to connect the operation sites and data centre, the networked equipment maintenance model enables bidirectional communication among the management, maintenance teams, and diversely located equipment. This model not only realizes the formal data uploading in real-time, but also can provide the workers on site with guidance from the data centre.

scholarly journals Defect Texts Mining of Secondary Device in Smart Substation with GloVe and Attention-Based Bidirectional LSTM

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4522
Author(s):  
Kai Chen ◽  
Rabea Jamil Mahfoud ◽  
Yonghui Sun ◽  
Dongliang Nan ◽  
Kaike Wang ◽  
...  
Keyword(s):  
Text Classification ◽  
Short Term Memory ◽  
Feature Space ◽  
Classification Model ◽  
Attention Model ◽  
Operation And Maintenance ◽  
Word Representation ◽  
Low Efficiency ◽  
Smart Substation ◽  
Secondary Device

In the process of the operation and maintenance of secondary devices in smart substation, a wealth of defect texts containing the state information of the equipment is generated. Aiming to overcome the low efficiency and low accuracy problems of artificial power text classification and mining, combined with the characteristics of power equipment defect texts, a defect texts mining method for a secondary device in a smart substation is proposed, which integrates global vectors for word representation (GloVe) method and attention-based bidirectional long short-term memory (BiLSTM-Attention) method in one model. First, the characteristics of the defect texts are analyzed and preprocessed to improve the quality of the defect texts. Then, defect texts are segmented into words, and the words are mapped to the high-dimensional feature space based on the global vectors for word representation (GloVe) model to form distributed word vectors. Finally, a text classification model based on BiLSTM-Attention was proposed to classify the defect texts of a secondary device. Precision, Recall and F1-score are selected as evaluation indicators, and compared with traditional machine learning and deep learning models. The analysis of a case study shows that the BiLSTM-Attention model has better performance and can achieve the intelligent, accurate and efficient classification of secondary device defect texts. It can assist the operation and maintenance personnel to make scientific maintenance decisions on a secondary device and improve the level of intelligent management of equipment.

scholarly journals Development of discrimination technology associated to protection secondary circuits in Smart Substation Based on Semantic Features of SCD

2018 ◽  
Vol 173 ◽  
pp. 02035
Author(s):  
Wei Bao ◽  
Xiang Gao ◽  
Ke Wang ◽  
Qi Geng ◽  
Jie Song ◽  
...  
Keyword(s):  
Black Box ◽  
Technical Solution ◽  
Semantic Features ◽  
Virtual Circuit ◽  
Operation And Maintenance ◽  
Core Part ◽  
Smart Substation

As a core part of smart substation, SCD files make secondary circuits in smart substation becoming a ‘black box’, which brings great difficulties to operation and maintenance. This paper proposes the SCD virtual circuit identification technology based on a semantic strength, which can provide an effective technical solution for the SCD management of smart substation, and demonstrates a reference for controlling the maintenance risk of smart substation.

scholarly journals Research and Implementation of SCD Precision Decoupling in Intelligent Substation for Single Equipment Replacement

2021 ◽  
Vol 2137 (1) ◽  
pp. 012015
Author(s):  
Liang Wang ◽  
Yulei Jiang ◽  
Teng Feng
Keyword(s):  
Logical Structure ◽  
Decoupling Method ◽  
Equipment Replacement ◽  
Operation And Maintenance ◽  
Expansion Stage ◽  
Configuration Information ◽  
Smart Substation

Abstract In the process of reconstruction and expansion of intelligent substation, it is difficult to accurately define the influence scope of SCD file upgrade. In the wake of each modification of SCD file, all configuration information contained in SCD needs to be re-verified, which greatly increases the workload of debugging, operation and maintenance of intelligent substation. Via decoupling SCD files, the problems of modification and re-verification of SCD files in the reconstruction and expansion stage can be tackled. In this paper, SCD precision decoupling method for smart substation with single equipment replacement is proposed, which makes SCD decoupling work more detailed, adaptable to various expansion and technical transformation of substation. The decoupling of SCD is refined from logical structure to physical link level, and the decoupling range of SCD is precisely determined, so as to minimize the modification and reverification range of SCD files and reduce the change risk caused by SCD modification.

scholarly journals The research of configuration for stability control device in smart substation

2021 ◽  
Vol 260 ◽  
pp. 02007
Author(s):  
Ye He ◽  
Binjiang Hu ◽  
Dongxu Chang ◽  
Jie Zhang ◽  
Lingfang Li ◽  
...  
Keyword(s):  
Stability Control ◽  
Control Device ◽  
Protection Device ◽  
Soft Switch ◽  
Operation And Maintenance ◽  
Technical Specifications ◽  
The Stability ◽  
Configuration Scheme ◽  
Smart Substation

A unified specification to design and operate the stability control device in smart substation has not been formed yet, which has greatly affected the promotion and application of stability control device in smart substation. Thus, referring to the technical specifications of protection device and combining to the specificity of stability control device, a full and detailed configuration scheme is proposed to meet the requirement, including the device configuration principle, the access configuration of SV and GOOSE for variable primary connection types, the virtual terminal and soft switch. This solution is beneficial to standardize the R&D of stability control device in smart substation, and to facilitate on-site debugging, operation and maintenance.

scholarly journals Summary of Research on Quality Control Technology of Secondary Equipment Maintenance in Smart substation

2020 ◽  
Vol 440 ◽  
pp. 032034
Author(s):  
Meizi Hong ◽  
Hengxuan Li ◽  
Yongjun Xia ◽  
Zuowei Wang ◽  
Zhen’an Du ◽  
...  
Keyword(s):  
Quality Control ◽  
Equipment Maintenance ◽  
Control Technology ◽  
Smart Substation

Research on Multicast Flooding Suppression in Smart Substation

2014 ◽  
Vol 986-987 ◽  
pp. 1258-1262
Author(s):  
Xiang Qun Wang ◽  
Zai Chao Huang ◽  
Chun Long Li ◽  
Zhi Huang ◽  
Xiao Bo Wang
Keyword(s):  
Experimental Data ◽  
Time Performance ◽  
Operation And Maintenance ◽  
Depth Analysis ◽  
Practical Engineering ◽  
Route Recommendation ◽  
Suppression Method ◽  
Process Level ◽  
Smart Substation ◽  
Exchange Principle

The existence of a large number of multicast flooding data in the process level of smart substation,causes serious influence on the real-time performance and reliability of network.Through the exchange principle of Ethernet,the forwarding process of second-layer multicast in network is introduced. Combined with the application in intelligent substation and some experimental data, through in-depth analysis of the 802.1Q VLAN isolating broadcast domain,setting static multicast to change the static MAC address table ,and GMRP to change the multicast information on Ethernet switch through the interactive protocol data, the multicast flooding suppression method is illustrated. And based on the practical engineering situation, the three kinds of methods are compared from the characteristics of debugging operation and maintenance convenience and reliability of intelligent equipment,then the technology route recommendation is given.

scholarly journals Optimization strategy of operation and maintenance based on econometric model

2021 ◽  
Vol 292 ◽  
pp. 03028
Author(s):  
Xuefei Zhang ◽  
Zhiwei Li ◽  
Chengzhi Wang ◽  
Xuejun Tang ◽  
Sen Yang
Keyword(s):  
Econometric Model ◽  
Power Grid ◽  
Optimal Decision ◽  
Maintenance Cost ◽  
Equipment Maintenance ◽  
Optimization Strategy ◽  
Operation And Maintenance ◽  
Inspection And Maintenance ◽  
Qualification Rate

With the continuous development of power grid, the investment of equipment assets is increasing sharply during the 13th Five Year Plan Period. There is a growing need for equipment maintenance as the equipment ages and varies in different types from transmission to distribution equipment. Equipment is the base element of healthy power grid development. Therefore, it is important to raise the efficiency and quality of equipment status via operation and maintenance. To improve the effectiveness of equipment maintenance, reduce the maintenance cost, improve the safe operation level and power supply reliability of power grid, this paper uses econometric model of correlation analysis to build the correlation between daily overhaul, operation and maintenance and fault frequency and voltage qualification rate, so as to provide optimal decision for the development of operation, inspection and maintenance of power grid company.

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