Request pdf design and implementation of a substation automation unit. Therefore, the realization of an intelligent substation automation system, as shown in the scheme of fig. One of the last frontiers of automation in utility operations is the substation. These state of the art products offer many new possibilities in protection and control. Multilin d20 architectures to implement cost effective life cycle management programs. A transmission substation connects two or more transmission lines. An experiment report, second edition scott hissam john hudak james ivers mark klein magnus larsson gabriel moreno linda northrop daniel plakosh judith stafford kurt wallnau william wood initial publication september 2002 revised september 2003 technical report cmusei2002tr031 esctr. Step by step implementation possible a total substation automation concept user friendly software tools application general substation automation includes a complete range of flexible object terminals, including all necessary functions for substation control and substation monitoring systems. Consider also that systems from separate vendors often are used. The simplest case is where all transmission lines have the same voltage. In a real implementation this interface is mapped to an. The middle three levels are ied implementation, ied integration, and substation automation applications. The design can achieve this concern and the variable price ot tossll.
Substation automation is a powerful tool to improve asset management in the past, utility engineers often struggled with the fact that too little data was available when they attempted to analyse problems within their power systems. Modern energy management systems georgia tech atlanta, georgia wednesday, november 12, 2003 john mcdonald, p. With the introduction of the new technologies and the use of iec61850, a more decentralized architecture of the substation automation system will be possible. Design and implementation of an iec 61850 gateway for plc.
In particular, the paper will describe the customers requirements and expectations with regard to the information flow, control sequences, automation functions, and reliability. Ieee pes chicago chapter substation integration and automation approaches and best practices 11 lanwan telco system web pages with. This provides several benefits but a careful system design is. In this thesis, we focus on the design and analysis of communication protocols for supporting smart grid applications. This framework supports the development of smart distribution systems solutions. Substation automation system sas etap intelligent substation automation system isub picks up where other substation automation systems fall short. Modular substation automation systems overview ge grid solutions.
These connection possibilities highlight the importance of securing data access connections into the substation lan. Communication of load and fault data gives a new dimension to protection and control. The abcs of substation automation levels of substation automation substation integration and automation can be broken down into five levels. Key design factors include implementation method, functionality, hardware technology and redundancy, communication. Nathan bingham focuses on energy automation for power engineers, a 600person consulting engineering firm specializing in energy, facilities and communications. The middle three levels are ied implementation, ied integration, and. Hence, we require substation automation systems in the present day substations to efficiently control and deliver power. Design and implementation of a substation automation unit abstract. Design and implementation aims to close the gap created by fast changing technologies impacting on a series of legacy. Substation automation based on iec 61850 with new process. Substation automation system for energy monitoring and control using scada jogi jose 1, christy p v arghese 2, akhil jo abraham 3, justin joy 4, a. Substation automation systems the abb intelligent electronic devices ieds for protection and control are an integral part of the substation automation system. Keys to successful substation automation system design power. Including a software and hardware investigation of plc and communication products from different vendors that are suitable for using in an implementation of an iec 61850 interface.
The design of the substation automation architecture to meet these customer requirements will be. Networks of 61850 devices as bes cyber systems need to be enclosed in an esp. Substation automation system for energy monitoring and. The substation design manual is not intended to replace asset management standards, but rather to act as a reference document that crossreferences existing standards and process documentation and plugs any gaps where asset management documentation does not exist. Koilraj 5 1,2, 3, 4 department of m echatronic s engineering, nehru i nstitute of engineering and t echnology. A microprocessor based rtu is used to host the automation software, freeing the hmi computer for operator interface duties only the hmi computer can therefore be less powerful and usually takes the form of a standard pc, or for notnormally manned substations, visiting personnel can use a. Abb has been designing and building substations since the 1900s. A group of polytechnic of namibi a students visit the auas 400 kv substation 4. Predictable assembly of substation automation systems. Drawing names drawing numbers date of issue and version. Abb can offer a comprehensive range of numerical object terminals for generation, transmission, distribution and industry.
The era of global standard for scada substation automation. Combined together the sas and ied lay the foundation for all the higherlevel remote functions such as advanced power system management and the monitoring of the condition of the. Substation automation electrical engineering portal. At the same time distribution networks are not only complex, but the consequences of. The it products in the substation facilitate easy connection to other corporate systems through wan or internet connections. Electric power system substations are being modernized to better serve user requirements for more efficient communication and more comprehensive protection and to. There is a demand for a substation automation system sas that is simple to. Substations are nodes in the smart grid infrastructure that help the in transportation of power by connecting the transmission and distribution lines. Merging unit connected to single phase instrument transformers. Scope this document defines the common functional requirements for the substation automation systems sas applied to electranets 275 kv, 2 kv and 66 kv transmission network assets. Substation automation system sas substation management. Switzerland introduction the more than 4000 substation automation sa systems installed worldwide are proof of the acceptance of such systems and the appreciation of their benefits by the utilities and. The ergon energy design philosophy is to provide substations.
Design and implementation of a ucabased substation. Historical evolution of substation automation systems sass main functions of substation automation systems impact of the iec 61850 standard on sas projects switchyard level, equipment and interfaces bay level station. There is a large amount of manual work involved in this. Iec 61850 designing a communication network topology for capacities. It is this information that is the true benefit of substation automation. Reliability is critical in the implementation of an intelligent substation automation system. Minimizing implementation time and manual configuration, as well as. Substation integration and automation approaches and best practices 2. Bateias 525kv substation on the copel power system in brazil.
It is intended to help those who have to define and implement sas, whilst also conforming to the current industry best practice standards. Our solutions deliver a smart, costeffective, shortcycle solution for digitized substations that are scalable to meet the varying needs of utilities. Keys to successful substation automation system design. Substation automation configuration substation automation systems can have several 10s to 100 different programmable devices. Throughout his career, he has pursued automation challenges with a particular emphasis in the design and implementation of substation scada and distribution automation systems. Figure 4 shows a previous substation network design with the addition of external connections. The detailed requirements for specific substation automation system functions are detailed within the documents 109fr22. 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. Pdf implementation of substation automation systems using iec. The increment of distributed energy resources such as small photovoltaic plants or microcogeneration systems, together with the increase of electric vehicles connected to the grid, is bringing new challenges to distribution system operators dsos.
Design and implementation of a substation automation unit. Substation integration and automation approaches and. Substation automation systems make their control and monitoring possible in real time and help maximize availability, effi cien cy, r eliabil ity, safet y and dat a integ rati on. One of the biggest challenges in the implementation of substation automation systems is the need for common understanding between engineers and technicians working in the electric power systems field and information technology or communications specialists. Substation automation schemes rely on realtime, missioncritical data. Analysis processes are utilized to manage the collected data for the purpose of system monitoring, evaluation, control, protection, and automation. In particular, we focus on the substation automation systems sas. Substation automation offers implementation benefits as enumerated below. Substation automation based on iec 61850 with new processclose. This provides several benefits but a careful system design is required to. Substation automation system sas provides protection, control, automation, monitoring, and communication capabilities as a part of a comprehensive substation control and monitoring solution. Substation automation ges broad portfolio of substation automation solutions provide customers with the control and automation functions needed to build a smarter, more reliable power grid. The main objective is to create a scada system for the desired substation. This topology is an enhancement of the hmi topology and is shown in figure 2.
The era of global standard for scada substation automation 247 place, and at the right time through automation. What does this mean for medium impact implementations. Substation automation systems sas are essential in economically. The lowest level is the power system equipment, such as transformers and circuit breakers. The future standard iec61850 perfectly supports this requirement. Pdf implementation of substation automation systems. Design and implementation aims to close the gap created.