Micro Grid Seminar Pptmodified

8/10/2019 Micro Grid Seminar Pptmodified

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MICRO GRID

12/19/20141

Presented by,

Anand SU4EEE11007

Guided by,Prathibha S Babu


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Contents

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Introduction

Microgrid Operating ModesOperationThe Need of MicrogridInterconnected Microgrids Power ParksEnvironmental AspectsConventional Grid versus Microgrid

Advantages & Disadvantages of MicrogridConclusion


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Introduction

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What is Microgrid?

It is a small-scale power supply network that isdesigned to provide power for a small community.

It enables local power generation for local loads.

It comprises of various small power generating sourcesthat makes it highly flexible and efficient.


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Introduction Cont..)

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It is connected to both the local generating units and

the utility grid thus preventing power outages.

Excess power can be sold to the utility grid.

Size of the Microgrid may range from housing estate tomunicipal regions.


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Introduction Cont..)

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Microgrid Components

Distributed GenerationLoadsImmediate storageControllerPoint of Common Coupling


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Microgrid Operating Modes

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Grid Connected Mode :

Utility grid is active.

Static switch is closed

All the feeders are beingsupplied by utility grid.


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Microgrid Operating Modes Cont..)

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Island Mode:

Utility grid is not supplying power

Static switch is open.

Feeder A, B, C are being suppliedby Microsources.

Feeder D (not sensitive )is dead.


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Interconnected Microgrids

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Interconnected Microgrids Power Parks

Practical size of Microgrids is limited to a few MVA.

For larger loads, it is desirable to interconnect manyMicrogrids to form a larger Microgrid network called

Power Parks.

The advantages of this Microgrid structure insuresgreater stability and controllability for the Power Parks.


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The Need Of Microgrid

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Microgrid could be the answer to our energy crisis.

Transmission losses gets highly reduced.

Microgrid results in substantial savings and cuts

emissions without major changes to lifestyles.

Provide high quality and reliable energy supply tocritical loads


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Environmental Aspects

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Microgrid encourages the use of the renewable energy

sources.

Large land use impacts are avoided.

CO2 Emissions are reduced.


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Conventional Grid vs. Microgrid

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Efficiency of conventional grid is very low as compared

to Microgrid.

Large amount of energy in the form of heat is wasted inconventional grid.

Power sources in case of Microgrid (often referred toas Microsources) are small and are located in closeproximity to load.


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Advantages Cont..)

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The use of both electricity and heat permitted by the

close proximity of the generator to the user, therebyincreasing the overall energy efficiency.

Microgrid can act to mitigate the electricity costs to its

users by generating some or all of its electricity needs.


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Disadvantages cont..)

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Microgrid protection

Interconnection standards needs to be developed toensure consistency.


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Conclusion

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Micro-grid, a new area in the power sector, has immensepotential to reduce the effect of blackouts, powerdeficiencies and its autonomy helps to supply poweruninteruptly to the customers.

Its implementation requires restructuring of electricalstandards, market rules and govt. grants, which are not abig issue but need some time.

This revolution has a great effect, because still there aresome places where electricity has not been reached yetand for them micro-grid is the only affordable, sustainableand reliable option.


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Documents

Micro Grid Seminar Pptmodified