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1、IT in Power Distribution,ENGINEERING STAFF COLLEGE OF INDIA An Autonomous Organ of the Institution of Engineers (India),NEED OF THE HOUR,Distribution system forms the ultimate link in the power system between the utility and end user. Customer expectations also have gone up to provide Reliable and q
2、uality power Timely redressal of complaints Accurate metering and billing without errors Facility & Flexibility of payment of bills from home,NEED OF THE HOUR,Many more in the wish list This can be only possible if the human element at work is replaced to a good extent by automating the operations a
3、nd use of Information technology becomes indispensable at this juncture,What do we need to do to meet the expectations Replace still old, conventional, manual systems being continued in most of discoms With the growth of network and the number of customers adopt newer technologies that provide faste
4、r service,NEED OF THE HOUR,Where human intervention is unable to cope up, adopt automation using the available & powerful IT tools The end result should be that customers are to be provided service levels like in other sectors like banking, communications etc. All these would improve the image of th
5、e utility,NEED OF THE HOUR,The focus areas of IT applications are Quality and reliability of supply Accurate of billing Easy payment mechanisms Better complaints handling IT is used in energy audit, Estimation of baseline losses & Substation /Distribution automation,AREAS OF FOCUS,IT INITIATIVES,Aim
6、s at Improvement of efficiency by way of elimination of delays, duplication, drudgery in paperwork Reduction in overall expenditure. Provides quick and efficient information systems like on line billing, collection and on line report generation Very fast reconciliation between important activities o
7、f metering, billing and collection. Web based servicing. To attain transparency and gain credibility. Customer satisfaction.,New Trends Automated Meter Reading Web Based Servicing Trouble Call Management System SCADA Consumer Analysis Tool (CAT),IT IMPLEMENTATION INITIATIVES,IT in System Planning Lo
8、ad forecast is an important parameter for system planning Requires accurate data of the system like energy consumption for last 10 years, maximum demand Methods of load forecast Trends: The trends for the growth in energy and consumption are computed based on the past data are To forecast the future
9、 demand / energy,IT IN SYSTEM PLANNING,Econometric Approach: Focuses on identification of correlation between demand and variables such as growth in GDP, population and households in the forecast End-use Approach: Focuses on uses of electricity, takes into account specific consumption of major appli
10、ances, degree of saturation of each appliance per customer, number of customer Using the load forecast developed using appropriate models, appropriate system planning package is to be selected for running the load flows,IT IN SYSTEM PLANNING,SCADA: Supervisory Control And Data Acquisition It is a sy
11、stem that enables an electric utility to remotely monitor, coordinate and operate distribution components in a real time from remote location.,IT IN SYSTEM OPERATION,The basic components of SCADA system are Control center Controlled plant Communication system SCADA platform uses a master slave commu
12、nication principle and controls the remote end equipment through Remote Terminal Unit,IT IN SYSTEM OPERATION,RTU can perform several functions like data acquisition, switching of circuit breakers / capacitors, changing of taps etc. based on the commands received from the control centre.,IT IN SYSTEM
13、 OPERATION,In the later versions of SCADA, RTUs are being replaced with IEDs (Intelligent Electronic Devices), which have the capability of measuring, monitoring, control, protection and communicating to the local operator or to the remote host (Ex: Numerical Relays),IT IN SYSTEM OPERATION,We can bu
14、ild a Distribution Automation system using the SCADA kernel which can accomplish many functions such as: Substation Automation Feeder monitoring and control Load Management Automated Meter reading Trouble call management Load Survey & Energy audit and so on,IT IN SYSTEM OPERATION,Feeder Monitoring a
15、nd Control Trippings and breakdowns in general and in rural areas in particular is a matter of serious concern which causes prolonged interruptions and consumer unrest and the same can be addressed through feeder monitoring Automation of the feeder control can be taken up using Auto reclosures near
16、the breakers and sectionalisers in the line,IT IN SYSTEM OPERATION,Feeder Monitoring and Control For any transient fault in the line, the auto reclosure first trips and then closes after a set time Sectionalisers help us in isolating the fault during permanent faults and the supply can be restored for the rest of the line,IT IN SYSTEM OPERATION,Operation of SCADA requires a good Communication system for which the options available are Public switched telephone networks Power line carrier comm
