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Substation Automation Systems: Design and Implementation aims to close the gap created by fast changing technologies impacting on a series of legacy principles related to how substation secondary systems are conceived and implemented. It is intended to help those who have to define and implement SAS, whilst also conforming to the current industry best practice standards. Key features: Project-oriented approach to all practical aspects of SAS design and project development. Uniquely focusses on the rapidly changing control aspect of substation design, using novel communication technologies and IEDs (Intelligent Electronic Devices). Covers the complete chain of SAS components and related equipment instead of purely concentrating on intelligent electronic devices and communication networks. Discusses control and monitoring facilities for auxiliary power systems. Contributes significantly to the understanding of the standard IEC 61850, which is viewed as a “black box” for a significant number of professionals around the world. Explains standard IEC 61850 – Communication networks and systems for power utility automation – to support all new systems networked to perform control, monitoring, automation, metering and protection functions. Written for practical application, this book is a valuable resource for professionals operating within different SAS project stages including the: specification process; contracting process; design and engineering process; integration process; testing process and the operation and maintenance process.
Substation Automation Systems: Design and Implementation aims to close the gap created by fast changing technologies impacting on a series of legacy principles related to how substation secondary systems are conceived and implemented. It is intended to help those who have to define and implement SAS, whilst also conforming to the current industry best practice standards. Key features: Project-oriented approach to all practical aspects of SAS design and project development. Uniquely focusses on the rapidly changing control aspect of substation design, using novel communication technologies and IEDs (Intelligent Electronic Devices). Covers the complete chain of SAS components and related equipment instead of purely concentrating on intelligent electronic devices and communication networks. Discusses control and monitoring facilities for auxiliary power systems. Contributes significantly to the understanding of the standard IEC 61850, which is viewed as a “black box” for a significant number of professionals around the world. Explains standard IEC 61850 – Communication networks and systems for power utility automation – to support all new systems networked to perform control, monitoring, automation, metering and protection functions. Written for practical application, this book is a valuable resource for professionals operating within different SAS project stages including the: specification process; contracting process; design and engineering process; integration process; testing process and the operation and maintenance process.
With distributed generation interconnection power flow becoming bidirectional, culminating in network problems, smart grids aid in electricity generation, transmission, substations, distribution and consumption to achieve a system that is clean, safe (protected), secure, reliable, efficient, and sustainable. This book illustrates fault analysis, fuses, circuit breakers, instrument transformers, relay technology, transmission lines protection setting using DIGsILENT Power Factory. Intended audience is senior undergraduate and graduate students, and researchers in power systems, transmission and distribution, protection system broadly under electrical engineering.
The objective of the book is to fill a knowledge gap by covering the topic of substation automation by a team of authors, with academic and industry backgrounds. Understanding substation automation concepts and practical solutions requires knowledge in vastly diverse areas, such as primary and secondary equipment, computers, communications, fiber optic sensors, signal processing, and general information technology not generally taught in a power curricula but taught as independent subjects. At the same time, utility practice dictates how substation automation designs may be laid out and deployed. To design such a system one also requires knowledge about existing standards for data exchange, as well as test methods for evaluation of solutions. This book is designed to meet the educational needs of undergraduate and graduate power majors, as well as to serve as a reference to professionals who need to know about substation automation because of fast changing technology expertise needed in their careers. To meet the wide range of interests and needs, the book covers diverse aspects of substation automation, allowing instructors to select the best combination of chapters to meet their specific educational needs.
In the past automation of the power network was a very specialized area but recently due to deregulation and privatization the area has become of a great importance because companies require more information and communication to minimize costs, reduce workforce and minimize errors in order to make a profit. * Covers engineering requirements and business implications of this cutting-edge and ever-evolving field * Provides a unique insight into a fast-emerging and growing market that has become and will continue to evolve into one of leading communication technologies * Written in a practical manner to help readers handle the transformation from the old analog environment to the modern digital communications-based one
Cyber intrusions into substations of a power grid are a source of vulnerability since most substations are unmanned and with limited protection of the cyber and physical security. In the worst case, simultaneous cyber intrusions into multiple substations can lead to severe cascading events, causing catastrophic power outages. In addition, substation communication protocols do not include cyber security features in their original standard. Generic Object Oriented Substation Event (GOOSE) contains the circuit breaker trip command whereas Sampled Measured Value (SMV) includes measured analog values such as currents and voltages. Due to the importance of substation automation multicast messages, IEC 62351 standards proposed the authentication method as a primary security measure for GOOSE and SMV messages since they required fast transmission time. However, performance testing for the application of the authentication method to GOOSE and SMV is in an early stage, and there is presently no solution to detection of the GOOSE and SMV related error, anomaly and intrusion. Cyber security technologies for anomaly detection at a substation are in an early stage of development. Technologies to detect anomalies for substation automation multicast protocols and applications are critically needed. This dissertation is concerned with anomaly detection in the computer network environment of a substation. The proposed integrated Anomaly Detection System (ADS) contains host- and network-based anomaly detection systems for the substations, and simultaneous anomaly detection for multiple substations. Potential scenarios of simultaneous intrusions into the substations have been simulated using a substation automation testbed based on the IEEE 39 and modified IEEE 118-bus systems. The host-based anomaly detection considers temporal anomalies in the substation facilities. The malicious behaviors of substation automation based on multicast messages are incorporated in the proposed network-based anomaly detection. The proposed impact evaluation method can help operators find the most critical substation among the anomaly detected substations. In addition, the proposed simultaneous intrusion detection method is able to identify the same type of attacks at multiple substations and their locations. The result is a new integrated tool for detection and mitigation of cyber intrusions at a single substation or multiple substations of a power grid.
The Predictable Assembly from Certifiable Components (PACO) Initiative at the Software Engineering Institute (SEIsM) is developing methods and technologies for predictable assembly. A software development activity that builds systems from components is predictable if the runtime behavior of an assembly of components can be predicted from known properties of components and their patterns of interactions (connections), and if these predictions can be objectively validated. A component is certifiable if these known properties can be obtained or validated by independent third parties. The SE l's technical approach to PACC rests on prediction-enabled component technology (PECT). At the highest level, PECT is a scheme for systematic and repeatable integration of software component technology, software architecture technology, and design analysis and verification technology. This report describes the results of an exploratory PECT prototype for substation automation, an application area in the domain of power generation, transmission, and management. This report focuses primarily on the methodological aspects of PECT, the prototype itself was only a means to expose and illustrate the PECT method.