Equipment In Smart Substation Research Articles

Automatic detection system of secondary equipment in smart substation based on decision tree and support vector machine

Automatic detection system of secondary equipment in smart substation based on decision tree and support vector machine

A Study on the Fault Location of Secondary Equipment in Smart Substation Based on the Graph Attention Network

A Study on the Fault Location of Secondary Equipment in Smart Substation Based on the Graph Attention Network

Prediction and analysis of smart substation equipment prices based on the assumption of "adaptive expectations"

Based on the actual situation of the development of smart substations in my country, the assumption of "adaptive expectations" and the relevant engineering cost theory, this paper analyzes the influencing factors of the equipment prices of smart substations, and uses the equipment price volatility as the benchmark to distinguish the different volatility conditions, adopting different forecasting methods to analyze the price change trend of smart substation equipment to improve the accuracy of forecasting prices. Finally, the hypothesis proposed in this paper is verified, and the price of smart substation equipment is most affected by technology and payback period, resulting in an overall stable price level.

Condition Monitoring and Analysis Method of Smart Substation Equipment Based on Deep Learning in Power Internet of Things

An accurate perception of the state of smart substation equipment is a strong guarantee for the reliable operation of the large power grid. This article proposes using deep learning for the device condition monitoring and analysis method in a power internet of things cloud edge collaboration mode. The speeded up robust features (SURF) feature detector is used at the edge of the network to accurately collect the interest points from the image data set, providing a reliable and complete sample data set support for the cloud-based deep learning network. Adding the attention mechanism module to the cloud improves the Yolov5 network model, enhance feature extraction, and increase the monitoring and analysis capabilities of the equipment. The simulation results show that the proposed method has achieved a recall rate of 91.21% and an accuracy rate of 90.54% for insulator fault evaluation indicators.

Analysis on Maintenance of Relay Protection Equipment in Smart Substation

Analysis on Maintenance of Relay Protection Equipment in Smart Substation

Research on Acceptance of Intelligent Substation Equipment Based on Secondary System Debugging Technology

Abstract Substation has always been the hub of power grid transmission, supply and distribution. Its construction has become a key link in the process of power grid construction. In the operation of the power grid, the secondary system provides the basic guarantee for the safe operation of the substation. The safety and reliability of the secondary work is of great significance to the power grid. In order to ensure the safe and stable operation of the secondary system, the protection still adopts the way of directly inputting the voltage and current of the primary system from the current and voltage transformer, and directly controlling the circuit breaker outlet through the relay. This paper mainly aims at the acceptance status of secondary equipment in the intelligent substation. Based on the analytic hierarchy process for data acquisition, analysis and research, obtain the operation acceptance status of secondary equipment in smart substation and make fault prediction. In the example test, the final evaluation score of the secondary equipment in the smart substation is 97.54, which verifies the accuracy of the fuzzy comprehensive evaluation method. Establish a scientific, consistent, feasible and standard state index for the power system.

Research on Advanced Application Configuration Design Technology of Smart Substation

The application transparency of secondary equipment in Smart Substation is low, the logical linkage is poor, and the intercommunication ability of equipment from different manufacturers is limited, which seriously restricts the promotion and application of advanced application functions. In view of the above problems, this paper carries out the research on advanced application configuration design technology of Smart substation, realizes automatic generation of advanced application logic through configuration configuration technology, realizes real-time display of logic status through configuration monitoring technology, and develops a measurement and control device supporting configuration design. The research results of this project are applied to a 110kV Smart substation in Hubei Province. The application results show that the technology described in this paper can effectively improve the application quality and efficiency of advanced application functions.

Research on On-line Monitoring Technology of Secondary Equipment in Smart Substation

First, the overall design principles of the online monitoring of secondary equipment in smart substations are studied. Then, the overall architecture of online monitoring of secondary equipment is proposed. Finally, the advanced application of the online monitoring system of secondary equipment is analyzed. The method proposed in this paper improves the online monitoring and management level of secondary equipment, and provides technical support for the regulation and condition maintenance of secondary equipment.

Research and Implementation of Automatic Configuration Method for Monitoring Information Table of Smart Substation Equipment

Aiming at the problems of low efficiency and difficult configuration of equipment monitoring information in smart substation, an automatic generation method of substation monitoring information table is proposed. By analyzing the configuration file of smart substation, the information of primary and secondary equipment is obtained, and the full model of equipment monitoring information table can be established automatically. According to the classification characteristics of the standard monitoring template, the equipment monitoring information table is automatically generated by association mapping with the monitoring template.

Fault location of secondary equipment in smart substation based on switches and deep neural networks

With the continuous development of smart substations, the functions of switches have been continuously improved. To improve the efficiency of the operation and maintenance of secondary equipment, this article proposes a fault location method for secondary equipment in smart substations based on switches and deep neural networks. First, the key alarm signal capture function and traffic statistics function are configured on the switch. Secondly, based on alarm information, traffic statistics, and message subscription relationships, the representation of the fault feature information method is proposed. Using the training rules of deep learning, the fault location model of secondary equipment based on deep neural network is established and the fault location steps are given. Taking the line spacing of smart substations as an example, simulations verify the effectiveness of the fault location method, and good location results can still be obtained in an environment with insufficient feature information reliability.

Condition monitoring of power transmission and transformation equipment based on industrial internet of things technology

Nowadays, Internet of Things (IoT) technology is an advanced and emerging information based technology and it possesses avast development potential. The application of IoT technology in power system is beneficial for the intelligent transformation of the power system. The power system provides a vast application space for the IoT technology. The purpose of this paper is to strongly promote the application and deployment process of the IoT in various industries and play a long-term important role in promoting the informatization transformation of China’s industry. This paper studies the state monitoring system of power transmission and transformation equipment based on panoramic data and introduces the information model into the IoT of power transmission and transformation equipment. According to the equipment panorama information required by the life cycle management of power transmission a comprehensive panorama information modeling scheme is proposed for smart substation equipment, and the network performance is monitored through simulation analysis. In particular, the end-to-end delay of the application layer changed greatly, with a decrease of 0.015 s. This study provides a reference for the development of state monitoring system of power transmission and transformation equipment in China.

Realization of Sequential Control Function Based on Bay Level Equipment in Smart Substation

In view of the problem of low reliability and automation of advanced application functions such as sequential control in smart substation, the logic configuration mode of sequential control is analyzed based on the principle of logic virtual circuit of bay level equipment in smart substation, and the realization of sequential control function based on bay level equipment is proposed. This method improves the operational reliability and configuration flexibility of sequential control, and fundamentally solves the technical application problem, so as to improve the intelligent level of power grid.

Research in Network Management Operation Inspection Based on Internet of Things Technology for Smart Substation Equipment Account

The Internet of Things technology has been fully applied in China's electric power system. This paper studies the equipment account management system base on The Internet of Things technology to basic information identifying the site and running information collection, in order to improve management efficiency and increase degree of automation and integrated information. Intelligent substation develop toward computerization and networking-oriented. Through in-depth study of RFID, wireless sensor technology, substation secondary equipment establish "e-cards" to achieve real-time monitoring management using a unique identity and online operating environment. Electronic management achieving equipment updated in real time and establishing of the network database model is to achieve static data relationships between primary and secondary equipment, master, and other accounting, greatly simplifies the equipment account data and equipment account management faster and more efficient.

Research on the Technology of Failure Functional Recovery for Secondary Equipment in Smart Substation

The technology of secondary equipment condition diagnosis and failure functional recovery could improve security, stability and effectiveness in smart substation. The development of status diagnosis and trends is summarized , and outstanding issues are discussed. The program of state diagnosis and failure function recovery are proposed on the basis of exiting technology; diagnosis model based on IEC 61850network device discovery and failure function recovery, etc are mainly studied. The smart substation secondary equipment diagnostic and failure function recovery are explored, which meets the development of mart grid self-healing and self-control.

Research on the Design and Test of Smart Substation OnLine Monitoring System

This paper simply introduces a smart substation monitoring system which is designed based on the IEC61850 communication standard and uniform background. The project is the integration of online monitoring unit and the intelligent components. It uploads the information of the integrated intelligent components and integrates the online monitoring system based on IEC61850.The paper also analyzes testing basic principles of the substation equipment online monitoring system, designs the basic program of the conformance testing of smart substation equipment online monitoring system, thus illustrate the feasibility of the test program.