Intergration of wind farms in indian transmission system
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Transcript of Intergration of wind farms in indian transmission system
Integration of wind farms intoIntegration of wind farms intoIndian transmission systemIndian transmission system
Ram Gopal VarmaChandan KumarDept. Of Electrical Engineering IT-BHU,Varanasi
1October 26,2009
Wind Systems in IndiaWind Systems in India� 5th largest wind power capacity of 9587.14
MW.
� Accounts to 6.2% of installed power capacityand 2% of generated power.and 2% of generated power.
� Average growth rate per year of 27%.
� Estimated to be 15600 MW by 2012.
� Most of them are off-grid Systems.
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Necessity of IntegrationNecessity of Integration
� With increasing Energy Demand andconstraints on fossil fuels, renewablesources have to be used.
Integration into the grid is a necessary� Integration into the grid is a necessaryprocess for efficient use of renewablesources.
� Geographical dispersion of wind systemswill quantify their intermittent output.
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Grid Network SystemsGrid Network Systems
� Supply power in close balance to demandmanaging fluctuations and breakdowns.
� Operational reserves like spinningreserves ensure that the plant copes upreserves ensure that the plant copes upwith fluctuations.
� Though aggregation smoothens variationsbut the overall load varies with powerneeds.
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ChallengesChallenges
� Additional short-term reserves will beneeded to guarantee the security of thesystem.
� Capacity credit of wind energy is very low.
� At lower demand levels plants areconstrained off leading to increase in costthe renewable energy.
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ChallengesChallenges……
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General Remedial StrategiesGeneral Remedial Strategies� Operators need not rely on the full rated
power.
� Remaining part can be used as short termreserve instead of spinning reserve.reserve instead of spinning reserve.
� Better wind forecasting techniques need tobe developed.
� Transmission system planning methods haveto be refined.
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Intraday MarketsIntraday Markets
� Short time forecasts have to supplementthe day ahead forecasts.
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Storage TechnologiesStorage Technologies� Wind power is always combined with
suitable storage technology.
� This makes it a virtual conventional powerplant.plant.
� Most suited technology for this purpose isthe Compressed Air Energy Storage(CAES)method.
� Tested and commercially available .
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ConclusionConclusion� Integration into the grid is compulsory to ensure
ongoing increase in wind power.
� Substantial strain and control reserve are majorchallenges.
� Proper use of intraday markets is more economical.
� CAES is a suitable utility.
� Research has to be done short-term load fore castingtechniques.
10October 26,2009
AcknowledgmentAcknowledgment
� We thank IET Delhi Network for giving usthis opportunity to present our ideas.
� We thank Dr. S. N. Mahendra , HOD(Electrical Engineering ),IT-BHU for hisconstant support and kind guidance.
11October 26,2009
12October 26,2009