scholarly journals Toward a Substation Automation System Based on IEC 61850

Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 310
Author(s):  
Shantanu Kumar ◽  
Ahmed Abu-Siada ◽  
Narottam Das ◽  
Syed Islam
Keyword(s):  
High Voltage ◽  
Hierarchical Level ◽  
Automation System ◽  
International Electrotechnical Commission ◽  
Automation Systems ◽  
Instrument Transformers ◽  
Instrument Transformer ◽  
Conventional Instrument ◽  
Substation Automation ◽  
The Impact

With the global trend to digitalize substation automation systems, International Electro technical Commission 61850, a communication protocol defined by the International Electrotechnical Commission, has been given much attention to ensure consistent communication and integration of substation high-voltage primary plant assets such as instrument transformers, circuit breakers and power transformers with various intelligent electronic devices into a hierarchical level. Along with this transition, equipment of primary plants in the switchyard, such as non-conventional instrument transformers, and a secondary system including merging units are expected to play critical roles due to their fast-transient response over a wide bandwidth. While a non-conventional instrument transformer has advantages when compared with the conventional one, extensive and detailed performance investigation and feasibility studies are still required for its full implementation at a large scale within utilities, industries, smart grids and digital substations. This paper is taking one step forward with respect to this aim by employing an optimized network engineering tool to evaluate the performance of an Ethernet-based network and to validate the overall process bus design requirement of a high-voltage non-conventional instrument transformer. Furthermore, the impact of communication delay on the substation automation system during peak traffic is investigated through a detailed simulation analysis.

scholarly journals Denial-of-Service Attack on IEC 61850-Based Substation Automation System: A Crucial Cyber Threat towards Smart Substation Pathways

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6415
Author(s):  
Suleman Ashraf ◽  
Mohammad H. Shawon ◽  
Haris M. Khalid ◽  
S. M. Muyeen
Keyword(s):  
Cyber Security ◽  
Denial Of Service ◽  
Time Frame ◽  
Automation System ◽  
International Electrotechnical Commission ◽  
System Delay ◽  
Dos Attacks ◽  
Iec 61850 ◽  
Automation Systems ◽  
Substation Automation

The generation of the mix-based expansion of modern power grids has urged the utilization of digital infrastructures. The introduction of Substation Automation Systems (SAS), advanced networks and communication technologies have drastically increased the complexity of the power system, which could prone the entire power network to hackers. The exploitation of the cyber security vulnerabilities by an attacker may result in devastating consequences and can leave millions of people in severe power outage. To resolve this issue, this paper presents a network model developed in OPNET that has been subjected to various Denial of Service (DoS) attacks to demonstrate cyber security aspect of an international electrotechnical commission (IEC) 61850 based digital substations. The attack scenarios have exhibited significant increases in the system delay and the prevention of messages, i.e., Generic Object-Oriented Substation Events (GOOSE) and Sampled Measured Values (SMV), from being transmitted within an acceptable time frame. In addition to that, it may cause malfunction of the devices such as unresponsiveness of Intelligent Electronic Devices (IEDs), which could eventually lead to catastrophic scenarios, especially under different fault conditions. The simulation results of this work focus on the DoS attack made on SAS. A detailed set of rigorous case studies have been conducted to demonstrate the effects of these attacks.

The Need for a Component-Based Approach to Automation Systems for Agile Manufacturing

Volume 2 ◽  
2004 ◽  
Author(s):  
Szer Ming Lee ◽  
Min Huey Ong ◽  
Robert Harrison ◽  
Andrew A. West
Keyword(s):  
Agile Manufacturing ◽  
Automation System ◽  
Automotive Manufacturing ◽  
Manufacturing Enterprises ◽  
Design And Implementation ◽  
Automation Systems ◽  
Depth Study ◽  
New Challenges ◽  
Automotive Production ◽  
The Impact

Manufacturing enterprises are facing new challenges caused by unprecedented changes due to volatile market demands. Such changes have direct impact to the design, implementation and operation of automation systems in the domain of automotive production. An in-depth study in the activities of building and operating automation systems in the domain of automation manufacturing has revealed weaknesses in current practices and in particular an inability to cope effectively with production changes. It is envisaged that a component-based approach will enable an automation system to be designed, implemented and modified quickly and effectively, thereby increasing the agility, responsiveness and changeability of the system. This paper investigates the impact of market demands on the lifecycle of automation systems in the automotive manufacturing and proposes a novel component-based approach suitable for automation system design and implementation.

Condition Assessment of High Voltage Instrument Transformer Using Partial Discharge Analysis

2013 ◽  
Vol 64 (4) ◽  
Author(s):  
Mohd Aizam Talib ◽  
Abu Sufian Abu Bakar Abu Bakar ◽  
S. Gobi Kannan
Keyword(s):  
High Voltage ◽  
Diagnostic Tool ◽  
Economic Activity ◽  
Field Measurement ◽  
Laboratory Experiments ◽  
Partial Discharge ◽  
Incipient Faults ◽  
Instrument Transformers ◽  
Customer Dissatisfaction ◽  
Instrument Transformer

Determining the incipient faults in high voltage apparatus is important because failure without warning can result in damage to adjacent equipment, personnel injures, customer dissatisfaction and disruption to economic activity. The failure of several high voltage instrument transformers during in-service prompted Tenaga Nasional Berhad (TNB) to identify more effective diagnostic tool to predict insulation breakdowns. The viability of partial discharge (PD) measurements in the field on instrument transformers is investigated. This paper presents the results of partial discharge tests that have been carried out under laboratory experiments and field measurement on high voltage instrument transformers.

Research on Monitoring System of 220 kV High-Voltage Substation Based on Bluetooth Technology

2011 ◽  
Vol 204-210 ◽  
pp. 2109-2112 ◽  
Author(s):  
Wen Xing Wang ◽  
Xing Lin Cao
Keyword(s):  
Monitoring System ◽  
High Voltage ◽  
System Architecture ◽  
Monitoring Systems ◽  
Automation System ◽  
Unique System ◽  
Practical Design ◽  
Substation Automation

Through the construction of substation monitoring system based on Bluetooth, the separate monitoring systems of environment is integrated with the former comprehensive automation system into a unique system. It's a new step of substation automation. The system architecture, software, hardware and the necessary factions of this system are introduced in detail for reference of practical design.

Research on Key Technology of Smart Substation with Intelligent Materials

2012 ◽  
Vol 485 ◽  
pp. 562-565 ◽  
Author(s):  
Yuan Ping Zheng ◽  
Yong Liang Liang ◽  
Lin Niu
Keyword(s):  
Smart Grid ◽  
Automation System ◽  
Intelligent Node ◽  
Key Technology ◽  
Fundamental Part ◽  
Complex Power ◽  
Geographically Distributed ◽  
Instrument Transformer ◽  
Conventional Instrument ◽  
Smart Substation

Smart substation is the intelligent node of the smart grid, which plays a fundamental part in the construction of the smart grid. This paper presents the concept and the technical characteristics of the smart substation and some important aspects in the development of Substation Automation System (SAS): the meaning, technical characteristics and the development of IEC61850 which is the international and the best standard for the construction of SAS; different Substation Communication (SC) architecture to ensure the reliability, availability and survivability of the geographically distributed complex power; the characteristics of Non Conventional Instrument Transformer(NCIT), the Intelligent Switchgear as well as their implement.

scholarly journals Adoption of Koha Integrated Library System (ILS) for the Automation of Umaru Musa Yar’adua University Library, Katsina, Nigeria: Problems and Prospects

2021 ◽  
Vol 11 (1) ◽  
pp. 9-14
Author(s):  
Nafi’u Maharazu ◽  
Suleiman Hamisu Malumfashi
Keyword(s):  
Modern Technology ◽  
Automation System ◽  
Library Management ◽  
Library Automation ◽  
Library System ◽  
University Library ◽  
Automation Systems ◽  
Information Technologists ◽  
Automation Project ◽  
The Impact

This study attempted to explore the gradual advancement of modern technology in libraries, it distinguished old and new innovations, creative efforts of librarians and information technologists through the various generations of automation revolution. The study also identify various components of the Integrated Library System (ILS) or Library Management System (LMS) which are used or being used in Umaru Musa Yar’adua University (UMYU) library as well as the services automated by the system. The study also identifies the exact reasons for adopting KOHA in UMYU library. It also explains the impact, challenges associated with the University library automation system. The study adopted quantitative approach as research paradigm; with survey as research methods. Questionnaires were the instrument used for data collection. The population of 42 library staff was used for the study. The data for the study were analyzed using tables and frequencies. From the findings of the study the two main services fully automated were the Circulation and Cataloguing, the library adopted the use of the KOHA ILS as it was a free open source and secondly for greater opportunities and innovation. However, retrospective conversion and Low Level of Literacy were the major challenges and a setback for the KOHA ILS implementation in the library understudy. The study recommended the need for the increase investment in the automation project to speed up the implementation of automation systems.

Mission Critical Safety Functions in IEC-61850 Based Substation Automation System - A Reliability Review

2020 ◽  
Vol 48 ◽  
pp. 149-161 ◽  
Author(s):  
Vonani Clive Mathebula ◽  
Akshay Kumar Saha
Keyword(s):  
Communication Networks ◽  
Power Plants ◽  
Thermal Power ◽  
Automation System ◽  
Functional Safety ◽  
Iec 61850 ◽  
Iec 61508 ◽  
Automation Systems ◽  
Dependability Evaluation ◽  
Substation Automation

The use of Substation Communication Networks (SCN) in power distribution centres of thermal power plants for protection, control and monitoring is increasing as industry’s confidence grows in the application of the IEC-61850 based Substation Automation Systems (SAS). IEC-61508, which is the standard for functional safety, addresses Electrical/Electronic/Programmable Electronic (E/E/PE) safety based technologies in so far as safety lifecycle as well as reliability and verification of safety related systems are concerned. It follows therefore, that Substation Communication Networks (SCN), as well as associated substation equipment that forms part of the overall safety system should satisfy the requirements of functional safety standard IEC-61508. In this paper, Substation Automation System standard (SAS) IEC-61850, Substation Communication Networks (SCNs) as well as dependability evaluation methods are reviewed and discussed.

scholarly journals Smart Local Backup Protection for Smart Substation

2017 ◽  
Vol 7 (5) ◽  
pp. 2321
Author(s):  
M.N. Dazahra ◽  
F. Elmariami ◽  
A. Belfqih ◽  
J. Boukherouaa
Keyword(s):  
Low Cost ◽  
Object Oriented ◽  
Automation System ◽  
Backup Protection ◽  
Overcurrent Protection ◽  
Instrument Transformers ◽  
Conventional Instrument ◽  
Protective Relays ◽  
Using Data ◽  
Smart Substation

This paper presents a novel smart local backup protection SLBP used for the support and backup of the protective relays in a smart substation. The proposed SLBP is based on the IEC61850 standards and the concept consists of the acquisition of Generic Object Oriented Substation Event GOOSE used for tripping and interlocks exchange between Intelligent Equipment Devices IEDs and the reading of the Sampled Value SV existing in the process bus coming from Mergin Units MU or Non-Conventional Instrument Transformers NCIT. Several logical schemes to protect different zones of the substation are presented and how can be integrated using data in the substation automation system. The SLBP was developed using an open source library and free operating system. Moreover, a low cost prototype is presented in order to evaluate the efficiency and the operation of the SLBP under diverse scenarios of the proposed logical protective schemes such us breaker failure and overcurrent protection

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