IED models for data generation in a transmission substation
01 Dec 2010-pp 1-8
TL;DR: In this paper, the authors developed the operating response of each protection and control relay and the associated circuit breakers are monitored and stored in an event data base, suitable for knowledge extraction studies.
Abstract: Computer simulation of power systems and protective relays helps engineers to understand the behaviour of the network and the protection system during faults and other disturbances These simulations help in assessing the reliability of the protection system for different fault scenarios and can be of great help for protection engineers to carry out setting adjustments to increase the reliability and selectivity of the protection relays In this work, the modeling of a 400/220kV transmission substation, with the complete protection system is elaborated Using the model developed the operating response of each protection and control relay and the associated circuit breakers are monitored and stored in an event data base, suitable for knowledge extraction studies
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22 Jul 2012
TL;DR: An attempt has been made to reduce large amount of data generated by the new generation relay IEDs using rough set theory and the logic has been developed to analyze the concise data available after use rough set technique and communicate the information so extracted to the operator, protection and maintenance departments.
Abstract: The installation of Intelligent Electric Devices (IEDs) in the substations has changed the face of protection engineering. These devices not only record a variety of analog and digital values but also communicate the data to the control centre. Thus, the same engineers who were struggling for data earlier with electromechanical relays now have sufficient data to analyze the events taking place in the system from time to time. The IEDs generate operational data, which helps to analyze what went wrong in the system and non-operational data, which indicates why things went wrong in the system. Thus, with each IED sending data at the control centre, a large volume of data gets accumulated which cannot be analyzed manually. Automated systems are required to assist engineers analyze the data received from IEDs and provide quality information to the various user groups. In this paper, an attempt has been made to reduce large amount of data generated by the new generation relay IEDs using rough set theory. The logic has been developed to analyze the concise data available after using rough set technique and communicate the information so extracted to the operator, protection and maintenance departments. These departments make use of the information in running the system in a more effective and efficient manner.
1 citations
TL;DR: In this article , the authors transferred the data of the 33/11 Kv distribution station using the SCADA system and by linking an optical cable instead of the previous wireless methods between the distribution station and the control center, and measured the speed of data transfer and comparison of the two cases, as well as analysis of the data sent to calculate the amount of increased energy and future electrical energy loading, calculate the amounts of electrical energy consumption spent by the consumer and compare it with production quantities to know the value of the losses resulting from the process of transferring electrical energy from the source to the consumer.
Abstract: At a time when the world is looking to reduce the levels of electrical energy expenditure and control losses, in this research we will transfer the data of the 33/11 Kv distribution station using the SCADA system and by linking an optical cable instead of the previous wireless methods between the distribution station and the control center, and measure The speed of data transfer and comparison of the two cases, as well as analysis of the data sent to calculate the amount of increased energy and future electrical energy loading, calculate the amount of electrical energy consumption spent by the consumer and compare it with production quantities to know the value of the losses resulting from the process of transferring electrical energy from the source to the consumer.
References
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Book•
10 Aug 1992
TL;DR: In this paper, the authors present a classic power system relaying and power system phenomena including stability protection, reliability, and reliability of the relaying system from a network operator's perspective.
Abstract: ??????????? ????? Stanley Horowitz H Power System Relaying May 13th, 2020 With emphasis on power system protection from the network operator perspective this classic textbook explains the fundamentals of relaying and power system phenomena including stability protection and reliability The fourth edition brings coverage up to date with important advancements in protective relaying due to significant changes in the conventional electric power system that will
696 citations
Book•
15 Jan 1956
226 citations
"IED models for data generation in a..." refers background in this paper
...Since then, the development of relays has been related to the general development of electronics [1]....
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TL;DR: An overview of substation integration and automation fundamentals and best practices is provided and focuses on best practices.
Abstract: The advent of power industry deregulation has placed greater emphasis on the availability of information, the analysis of this information, and the subsequent decision-making to optimize system operation in a competitive environment. Intelligent electronic devices (IEDs) being implemented in substations contain valuable information, both operational and nonoperational, needed by many user groups within the utility. The challenge facing utilities is determining a standard integration architecture that meets the utility's specific needs, can extract the desired operational and nonoperational information, and deliver this information to the users who have applications to analyze the information. This article provides an overview of substation integration and automation fundamentals and focuses on best practices.
125 citations
"IED models for data generation in a..." refers background in this paper
...The development of IEDs, the implementation and acceptance of standards and migration to interoperable open systems have lead to the widespread automation of substations [2]....
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Book•
11 Dec 2004
TL;DR: This book provides both the underpinning knowledge and basic calculations needed to understand, specify, use and maintain power protection systems, and the practical techniques required on a daily basis.
Abstract: lant operators, electricians, field technicians and engineers will gain a practical understanding of the role and workings of power system protection systems from this work. An understanding of power systems and their optimized management will increase plant efficiency and performance as well as increasing safety levels. This book provides both the underpinning knowledge and basic calculations needed to understand, specify, use and maintain power protection systems, and the practical techniques required on a daily basis.After studying this book you will have an excellent knowledge of the principles of protection. You will also have a better understanding of the possible problems likely to arise in day-to-day work with power protection systems.Key areas of knowledge and expertise developed will include:
Fundamentals of electrical power protection and applications
Different fault types
Perform simple fault and design calculations
Practical knowledge of protection system components
Apply relay settings
Improve the safety of your site with the knowledge gained
63 citations
TL;DR: In this paper, a model-based substation automation application for advanced data availability is discussed, where the SuperCalibrator concept provides a basic technology to filter all substation data and quantifies the quality of the filtered data expressed in terms of the expected error.
Abstract: This paper discusses a model-based substation automation application for advanced data availability. The SuperCalibrator concept provides a basic technology to filter all substation data that are readily available by the substation automation scheme. The SuperCalibrator is conceptually very simple. It is a state estimator using a detailed three-phase breaker-oriented instrumentation-inclusive substation model. As such, the errors introduced by the instrumentation are compensated and the estimated values are closer to the actual values of the electric power system. The overall methodology identifies bad data and wrong topologies and quantifies the quality of the filtered data expressed in terms of the expected error in this data. Substation automation enables the seamless implementation of the SuperCalibrator. In turn, the SuperCalibrator substantially contributes toward the promise of substation automation to reliably provide accurate data to all clients. The applications discussed in this article should ignite the dialog and the realization that substation automation can make it possible to dramatically improve our approaches and tools in monitoring, controlling, and protecting the electric power grid infrastructure.
39 citations
"IED models for data generation in a..." refers methods in this paper
...The generated data can be further process to not only generate useful and easily readable rules but also for faster knowledge acquisition and information transfer to streamline the decision making process in the control center [ 11 ]....
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