smart grid.ppt

Smart Grid Technolgy

KUMAR CHATURVEDULA .U.P

ASSOCIATE PROFESSOR, EEE

ADITYA ENGINEERING COLLEGE

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Objectives
On completion of this lecture you would be able to :Define Smart GridCompare todays Grid with Smart GridSmart Grid development and key aspectsWorking Definitions of Smart Grid
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Smart Grid

Asmart gridis a digitally enabledelectrical gridthat gathers, distributes, and acts on information about the behavior of all participants (suppliers and consumers) in order to improve the efficiency, importance, reliability, economics, and sustainability of electricity services.

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History
Today'salternating currentpower gridevolved after 1896, based in part onNikola Tesla's design published in 1888
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What is an Electrical Grid?
An electrical grid is not a single entity but an aggregate of multiple networks and multiple power generation companies with multiple operators employing varying levels of communication and coordination, most of which is manually controlled. Smart grids increase the connectivity, automation and coordination between these suppliers, consumers and networks that perform either long distancetransmissionor local distributiontasks.
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The blackout's primary cause was a software bug in the alarm system at a control room of the FirstEnergy Corporation, located in Ohio. A lack of alarm left operators unaware of the need to re-distribute power after overloaded transmission lines hit unpruned foliage, which triggered a race condition in the control software. What would have been a manageable local blackout cascaded into widespread distress on the electric grid.


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Smart Grid Development

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Definition contd..

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Definitions:

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Security threats, from either energy suppliers or cyber attack

National goals to employ alternative power generation sources whose intermittent supply makes maintaining stable power significantly more complex

Conservation goals that seek to lessen peak demand surges during the day so that less energy is wasted in order to ensure adequate reserves

High demand for an electricity supply that is uninterruptible

Challenges for present grids


Goals of the smart grid
Enhancement of reliabilityreduce peak demand,shift usage to off-peak hours,lower total energy consumption,actively manage electric vehicle charging,actively manage other usage to respond to solar, wind, and other renewable resources
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Smart grids increase the connectivity, automation and coordination between these suppliers, consumers and networks that perform either long distancetransmissionor local distributiontasks.

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ADVANTAGE:


Overview:

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Smart grid functions
Self-healingConsumer participationEnable electricity marketHigh quality powerResist attackOptimize assets
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Features

Load adjustment

Demand response support

Price signaling to consumers

Smart power generation

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General economics developments
As customers can choose their electricity suppliers, depending on their different tariff methods, the focus of transportation costs will be increased. Reduction of maintenance and replacements costs will stimulate more advanced control.A smart grid precisely limits electrical power down to the residential level, network small-scaledistributed energygeneration and storage devices, communicate information on operating status and needs, collect information on prices and grid conditions, and move the grid beyond central control to a collaborative network
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Obstacles

Consumer concerns over privacy,

Social concerns over "fair" availability of electricity,

Limited ability of utilities to rapidly transform their business and operational environment to take advantage of smart grid technologies.

Concerns over giving the government mechanisms to control the use of all power using activities, and

Concerns on computer security.

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References
1.Wikipedia2.IEEE Explore 3.U.S. Department of Energy, 2011 Available: http://www.oe.energy.gov
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Thank u

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smart grid.ppt

Documents

pkumar chaturvedula

p definitions

electric grid

psmart grid development

smart gridcompare todays

smart gridenhancement

energy suppliers

multiple operators