smart grid ( kabindra pokharel bel-069-226)
TRANSCRIPT
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‘ SMART GRID ’
PRESENTATION BYKABINDRA POKHAREL [BEL/069/226]
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WHAT IS SMART GRID?
Electric grid : Interconnected network for delivering electricity from suppliers to consumers.
Smart grid : Grid that uses digital technology to improve reliability, resiliency, flexibility, and efficiency of the electric delivery system.
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Alexander Graham Bell
Thomas Alva Edison
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WHY WE NEED SMART GRID ?
New dynamics of future demand and supply
Ageing infrastructure Complex interconnected grids Integration of large number of
renewable generation sources Reduce power outage To lower carbon emissions To improve power quality Demands of Consumers and Regulators
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COMPONENTS OF SMART GRID
Smart Meter Phasor Measurement Unit Information Transfer Distributed Generation
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Smart Meter
Records consumption of electric energy
Enables two way communication between central system and meter
Sends the data to utility and consumer
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Phasor Measurement Unit High speed sensors Measures the electrical waves on
an electric grid Used for power-system automation
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INFORMATION TRANSFER Wide Area Network(WAN): connects the smart meters,
service providers, and electric utility.
Local Area Network(LAN) : connects the in-house smart
devices across the home with the smart meter.
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DISTRIBUTED GENERATION Small hydro, biomass, biogas, solar
power, wind power, and geothermal power
Located close to the load they serve Helps to decrease the carbon foot
print Reduce the demand on centralized
generation Helps to meet the peak demand
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FEATURES OF SMART GRID Two way flow of power and
information Involvement of consumers
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Demand Response and Real Time Pricing
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Plug-in Hybrid Electric Vehicles Uses electricity as fuel Can supply the stored energy to grid at peak time
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Self healing :
Real-time monitoring and
Reaction
Anticipation
Rapid isolation
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BARRIERS Technical issues like Voltage
instability Complexity Huge economical investment Prone to cyber crime Interference in the private life Health issues , RF emissions from smart meters
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CURRENT STATUS China is investing $61.4 billion Australia is investing $100M in smart
grids U.S.A. , Japan, Austria , U.K. ,Spain ,
France , Denmark etc are also working on it
South Korea $65 million pilot program on Jeju Island consists 6000 households; wind farms and four
distribution lines Aimed for nation-wide Smart Grid
implementation by 2030
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THANK YOUKABINDRA POKHARELBEL / 069 / 226