Intelligent electrical system

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Intelligent electrical system

  1. 1. Intelligent Electrical System"A Pre-requisite to Smart Grid”Manvendra Tewari WIPRO TECHNOLOGIES
  2. 2. TABLE OF CONTENTS1. Introduction .......................................................................................... 32. Step towards Smart Grid – The Intelligent Electrical System................. 33. What is an Intelligent Electrical System?................................................44. Components of Intelligent Electrical System..........................................5 4.1 Self Healing Network .....................................................................................................................5 4.2 Dynamic Network Model............................................................................................................... 5 4.3 Business Integration Framework ...................................................................................................65. How does technology fit in?.................................................................. 76. Benefits ................................................................................................. 87. Approach ...............................................................................................98. Conclusion........ .....................................................................................99. Appendix..............................................................................................10 9.1 References............. ..................................................................................................................... 10 9.2 About the Author.........................................................................................................................10
  3. 3. Intelligent Electrical System: A Pre-requisite to Smart GridThis whitepaper presents the thoughts for transforming “as-built” electrical connectivity data into an intelligent electrical systemfor “smart-grid-compliant” operational systems. Intelligent Electrical System being proposed is an IT-enabled, information-led,electrical network that provides more reasons and opportunities for better operational efficiency. It establishes and continuallyverifies electrical connectivity between primary devices to meters by improvising the AMI devices. This new system enables selfdiagnosis and establishes the voyage towards self healing network. The system architecture being proposed further empowersutilities in optimizing resource utilization and enhanced customer satisfaction by integrating geospatial and grid semantic datawith the system components like Outage Management System, Load Management etc.The discussion will address various components, technologies and principles for the working models. It will also address thebenefits and challenges of establishing such amodel to operate in a run time environment.IntroductionTransmission and distribution systems across most parts of the sphere are still operating on network designs and controlphilosophies that are decades old. The electric networks are steadfastly approaching their limits and facing acute concerns as faras reliability, scalability, quality and security is concerned. No economy, howsoever developed, can sustain its competitivenessand voyage in the growth path without the reliable, secure and digital-quality electric power. In their efforts to approach thisdesired state of network operations, utilities are keeping tab on a bigger concept, i.e., Smart Grid. Smart Grid concept is creatinglot of interest among the stakeholders and the efforts are continuously being made towards preparing the roadmap to achieveit. Unfortunately, when it comes to Smart Grid roadmap, one size doesn’t fit all! Each utility has to devise its own roadmap andidentify milestones towards achieving Smart Grid. Smart grid has been recognized as a way of addressing energy independence or global warming issues and therefore, it is being promoted by many governments. The then President-elect; now President Barack Obama asked the US Congress "to act without delay" to pass legislation that included doubling alternative energy production in the next three years and building a new electricity "smart grid".Step towards Smart Grid – The Intelligent Electrical SystemIt has been widely accepted that Smart Grid is a concept and it will continue to evolve. Utilities need not wait for the ‘Smart-grid-has-arrived’ stage and should continue their efforts towards accomplishing other practical solutions that will provideimmediate benefits as well as prepare them to embrace comprehensive Smart grid technologies, covering wider perspective.3 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES
  4. 4. Intelligent Electrical System: A Pre-requisite to Smart GridIntelligent Electrical System is an approach in the similar direction. This system would be a pre-cursor for the utilities, enablingthem to implement currently available and more matured solutions that will put the utilities in the path to achievecomprehensive Smart Grid, going forward. The benefit will be that utilities can right away embark on the journey towardsreliable production and delivery of energy to customers through real-time, automated control systems. Table below provides acomparison of the benefits of implementing Intelligent Electrical System vis-a-vis Smart Grid. Table 1: Comparison of thebenefits of implementing Intelligent Electrical System vis-a-vis Smart Grid. Characteristics Intelligent Electric System Smart Grid Self Heal Partial Enablement Facilitate Customer Participation Optimize Asset Utilization Distributed Generation Resources Partial Enablement Demand Response & Demand Side Management Resists Attack Digital Quality PowerWhat is an Intelligent Electrical System?Currently, due to lack of real-time information the customer comes to know about the energy usage only when the billing cycleis triggered, that could be anything up to 60 days in certain geographies. Other aspects of lack in information could be issues incollecting and analyzing load condition of T&D assets, locating exact fault location in case of outages, and slower response forrestoration. It all leads toward unexpected breakdowns, longer outages, slower restoration and un-informed customer.Leading utilities across the globe are striving for establishing a fully inter-connected electrical networksystem that enables reliable production and delivery of energy to customers through real-time,automated control systems. Intelligent Electrical system is an overlay of information-oriented softwareand services on top of the existing infrastructure. It is an IT-enabled, information-led electrical networkthat provides more reasons and opportunities for customer participation and better operationalefficiency.Establishing intelligent electrical system will require the utilities to establish:Electrical? grid with series of intelligent devices that can perform self diagnosis and report troubles to the control centre.Network? connectivity model and continuously verify electrical connectivity between primary devices to meters, byimprovising AMI devices.Business? integration framework to leverage and connect systems for load management, outage management and energymanagement.It establishes an electrically connected network right from the transmission station to the metering point in the customers’premise and is a practical sub-set of the integrated concepts of Smart Grid, using comprehensive GIS and AMI/MDM systems.4 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES
  5. 5. Intelligent Electrical System: A Pre-requisite to Smart GridComponents of Intelligent Electrical SystemSelf Healing NetworkOne of the important constituents of intelligent electrical system is the self healing network.Establishing the self healing networkwill include replacing traditional energy metering devices with Smart Meters and series of other intelligent devices on the keyassets in the network. It will allow the utility and the customers to automate the information flow and implementing controlmechanism for optimizing the service delivery and enhancing customer experience.The exercise will be to deploy series of intelligent devices for monitoring all aspects of the power system by placing sensorydevices on key assets, allowing for self diagnostics of the network in case of system disturbances, suggesting corrective actionsand/or taking automated corrective actions. Advanced metering and sensory technologies will support such an objective byautomating customer service delivery and optimizing energy management. It will support and provide features to the grid forallowing self diagnostics of the network and initiate the process of self healing and demand side management. Implementationof self healing network will also need implementation of business integration framework and infrastructure to enablebi-directional flow of information across the network and control centers.Dynamic Network ModelElectric network model establishes electrical connectivity from the consumption meter at the end point to the highest leveltransmission substations by placing all utility assets in a comprehensive GIS system and establishing the inter-connectivitybetween these assets. GIS system acts as foundation for collecting information and attributes about all key assets and displaysthem graphically on a contiguous land base. These asset attributes are further utilized to generate connectivity models whichserve as a basis for fault diagnostics using the Outage Management Systems (OMS).5 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES
  6. 6. Intelligent Electrical System: A Pre-requisite to Smart GridFurthermore, once established, the connectivity model continuously gets feeds during normal operations of the network andespecially during catastrophic outages such as a storm. Utilities need to transform static, as-built GIS data into dynamic networkmodel. The system should provide outage analysis on geographic landscape and should be able to support applications like realtime network analysis and remote switching.The connectivity models along with smart monitoring devices also help significantly enhance utility’s ability to identify andrectify outages. The capabilities can be used to verify exact location and extent of outages as well as optimized mobilization ofmobile field force to assist in power restoration. In case of catastrophic outages, utility can assess which customer segments arerectified and which are not, and improve customer awareness by publishing appropriate data for viewing.Business Integration FrameworkCollection of the necessary bytes of information from diverse sources will act as the backbone for the entire system architecture.Utilities need to orchestrate business data by establishing an integration framework and building a communication network.Enterprise integration framework would include both, the data integration as well as process integration from the varioussources of business and data processing applications.Further to this, another important aspect in all these developments is to support both interoperability and interconnectivity.Interoperability supports deploying manufacturer agnostic communication enablement between the devices. It supports utilitiesin adopting the products and services from the most competitive vendor and de-risks dependency on any particular technology.Industry-wide datastandards like MultiSpeak and Common Information Model (CIM) comes to rescue for the utility to facilitateinteroperability of diverse applications.6 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES
  7. 7. Intelligent Electrical System: A Pre-requisite to Smart GridInterconnectivity would support communication enablement with the devices and applications, at both ends of the energysupply chain. It would facilitate utilities to adopt remotely drive demand side management, demand response andonnection/disconnection of services.Utilities should adopt Service Oriented Architecture (SOA) and other standard technologies for openintegration while building the integration platform. This would help in easy integration of existingenterprise applications as well as future enhancements and third-party applications.Host of telecommunication technologies (For Example, Internet2, Ethernet over fiber, BPL, 4G WiMax, CDMA, GSM, iDEN, 3GWireless Voice & Data, WiFi-Wireless, ZigBee, Zensys, WiMedia) are available in market for enterprise backbone, Wide AreaNetworks (WAN) and Home Area Networks (HAN). Selection of a particular technology and/or combination of those isdependent on the current application landscape as well as the geography over which a utility’s customers are spread.How does technology fit in?There is a huge potential for improved service delivery and enhanced customer experience in the utilities industry. As discussedin the earlier section, lack of integrated flow of information across the teams and last mile visibility of the network poses greatchallenge to the utilities. Technology here has a significant role to play. Integration of applications like Distribution ManagementSystem, Energy management System, Geographic Information System, Outage Management System, AMI/MDM, andWork Management facilitate leveraging modern computing capabilities to deliver highly actionable information to a wide rangeof users, all while meeting the organization’s increasing need for real-time information. Advanced capabilities such as networkmonitoring, contingency analysis, fault handling can go far in giving utilities the power to be successful.An illustrative view of integrated technology landscape is shown below:7 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES
  8. 8. Intelligent Electrical System: A Pre-requisite to Smart GridBenefitsUtilities will experience significant improvement in system reliability, asset utilization and customer satisfaction. The informationnetwork will bring together the necessary bytes from diverse sources, needed to manage distribution network, whilemaintaining reliability and quality of supply.The power of intelligence, unleashed by exploiting integrated information, will help utilities to:? a fully inter-connected single, contiguous model of transmission, distribution and substation assets that enhancesEstablishreliability of energy supply and power quality to the customer.? a hierarchical electrical network model with the capability to perform self-diagnosis,suggesting corrective actionsEstablishand reporting to the central control room.?Trace geographic network; identify exact fault location; its extent, and thus faster restoration for lower CML (CustomerMinutes Lost).?Support conflict resolution, design alternatives and managing right-of-way.? integration framework for Intelligent Circuit and Outage Management systems.Establish?Achieve Service-Oriented integration of services and applications needed to flexibly support utility processes.?demand side management and facilitates customer participation.Improve?asset utilization by deploying condition monitoring of critical parameters, condition based maintenance andImprovedynamic adjustment of operating limits.?Cost savings due to greater visibility, predictive maintenance, reduced outages, faster restoration and improved assetutilization.?Achieve the pre-requisite for establishing a comprehensive Smart Grid ecosystem by marching towards operationsexcellence, environment friendliness, and reliability & quality of supply.8 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES
  9. 9. Intelligent Electrical System: A Pre-requisite to Smart GridApproachThe utility should examine the maturity of its electrical network, presence of smart devices (meters, network monitors etc.) andidentify opportunities to establish an intelligent electrical system. Approach should also aim towards identifying already presentsuggested components and the possibility to effectively integrate information silos that might be present.The three essential steps in achieving an intelligent electrical system are::ConclusionThe intelligent electrical system provides thee utilities real-time information of thee network and the energy supply. It providesopportunity to identify exact fault location and more organised restoration activity. It enables the customer with most updatedinformation and facilitates their participation in energy utilisation.9 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES
  10. 10. Intelligent Electrical System: A Pre-requisite to Smart GridAppendixReferencesBooks [2008]. The Smart Grid: An Introduction, U.S. Department of Energy.Journals? Ipakchi, Implementing the Smart Grid: Enterprise Information Integration[2007]. Ali[2008]. Eric Lightner, U.S. Department of Energy Evolution and Progress of Smart Grid Development at the Department of?Energy? Miller, EEI Annual Convention. The Smart Grid – Benefits and Challenges[2008]. JoeSite References[2008]. Stephen Hadden, Shannon Messer. A Useful Thing Happened on the Way to the Smart Grid: the Agile Grid Web site:?http://www.energycentral.com/Topics/T&D Automation/News 7 Editorial/Industry ArticleAbout the AuthorManvendra Tewari is a Domain Consultant working with Wipro’s Energy & Utilities DomainConsulting Group. He has extensive experience working in energy & utilities domain, both as a business user as well asconsultant. He has been part of various large implementations for operational and support systems and is well aware of theprocesses and best practices involved. He can be reached at manvendra.tewari@wipro.com.Wipro in Energy & UtilitiesThe Energy and Utility division of Wipro Technologies is one among the Top 10 IT solution providers to the EE & U industryacross the globe. The Energy & Utilities business unit has worked with over 75 top Energy and Utility companies across NorthAmerica and Europe in regulated as well as deregulated markets providing solutions in areas such as Customer Carre, Billing andSettlement, Work and Asset Management and Grid Operations covering all industry sectors --- Electricity, Gas, Oil and Water.The cumulative experience of over 5,500 person years spans IT Consulting, Systems Integration, Business Process Outsourcing,Application Development and Application Management services. 10 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES
  11. 11. Intelligent Electrical System: A Pre-requisite to Smart GridABOUT WIPRO TECHNOLOGIESWipro is the first PCMM Level 5 and SEI CMMi Level 5 certified IT Services Company globally. Wipro provides comprehensive ITsolutions and services (including systems integration, IS outsourcing, package implementation, software applicationdevelopment and maintenance) and Research & Development services (hardware and software design, development andimplementation) to corporations globally.Wipros unique value proposition is further delivered through our pioneering Offshore Outsourcing Model and stringent QualityProcesses of SEI and Six Sigma.ABOUT WIPRO COUNCIL FOR INDUSTRY RESEARCHThe Wipro Council for Industry Research comprising of domain and technology experts from the organization aims to addressthe needs of customers by specifically looking at innovative strategies that will help them gain competitive advantage in themarket. The Council in collaboration with leading academic institutions and industry bodies studies market trends to equiporganizations with insights that facilitate their IT and business strategiesFor more information please visit www.wipro.com/industryresearch11 | www.wipro.com/industryresearch WIPRO TECHNOLOGIES

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