microgrid. iettrichy

22
Shahab Ahmad Khan 06 EEB 127 Reshadat Ali 06 EEB 158 Sharib Hussain 06 EEB 168 10/27/22 1 IET.Trichy

Upload: sankaravinayagam

Post on 18-Jan-2015

3.818 views

Category:

Education


1 download

DESCRIPTION

 

TRANSCRIPT

Page 1: Microgrid. iettrichy

Shahab Ahmad Khan 06 EEB 127

Reshadat Ali 06 EEB 158

Sharib Hussain 06 EEB 168

04/10/23 1IET.Trichy

Page 2: Microgrid. iettrichy

Outline

Introduction to Microgrid.Microgrid Operating Modes.The Need of Microgrid.Interconnected Microgrids – Power Parks.Environmental Aspects.Conventional Grid versus Microgrid.Advantages & Disadvantages of Microgrid.Future Directions on Microgrid Research.References.

04/10/23 2IET.Trichy

Page 3: Microgrid. iettrichy

Introduction To MicrogridWhat is Microgrid?

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

It enables local power generation for local loads.

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

04/10/23 3IET.Trichy

Page 4: Microgrid. iettrichy

Introduction To MicrogridWhat is Microgrid?

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 to municipal regions.

04/10/23 4IET.Trichy

Page 5: Microgrid. iettrichy

Introduction To MicrogridMicrogrid Components

Distributed GenerationLoadsImmediate storageControllerPoint of Common Coupling

04/10/23 5IET.Trichy

Page 6: Microgrid. iettrichy

Typical Microgrid is shown below:

04/10/23 6IET.Trichy

Page 7: Microgrid. iettrichy

Pomelo, Indonesia - Village microgrid

04/10/23 7IET.Trichy

Page 8: Microgrid. iettrichy

Microgrid Operating Modes

Grid Connected Mode:

Utility grid is active.

Static switch is closed

All the feeders are being supplied by utility grid.

04/10/23 8IET.Trichy

Page 9: Microgrid. iettrichy

Microgrid Operating Modes

Island Mode:

Utility grid is not supplying power

Static switch is open.

Feeder A, B, C are being supplied by Microsources.

Feeder D (not sensitive ) is dead.

04/10/23 9IET.Trichy

Page 10: Microgrid. iettrichy

The Need Of Microgrid

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 to critical loads

04/10/23 10IET.Trichy

Page 11: Microgrid. iettrichy

Interconnected Microgrids Interconnected Microgrids – Power Parks

Practical size of Microgrids is limited to a few MVA.

For larger loads, it is desirable to interconnect many Microgrids to form a larger Microgrid network called Power Parks.

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

04/10/23 11IET.Trichy

Page 12: Microgrid. iettrichy

Environmental Aspects

Microgrid encourages the use of the renewable energy sources.

Large land use impacts are avoided.

CO2 Emissions are reduced.

04/10/23 12IET.Trichy

Page 13: Microgrid. iettrichy

Conventional Grid vs. Microgrid

Efficiency of conventional grid is very low as compared to Microgrid.

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

Power sources in case of Microgrid (often referred to as Microsources) are small and are located in close proximity to load.

04/10/23 13IET.Trichy

Page 14: Microgrid. iettrichy

Advantages & Disadvantages Microgrid Advantages

A major advantage of a Microgrid, is its ability, during a utility grid disturbance, to separate and isolate itself from the utility seamlessly with little or no disruption to the loads within the Microgrid.

In peak load periods it prevents utility grid failure by reducing the load on the grid.

Significant environmental benefits made possible by the use of low or zero emission generators.

04/10/23 14IET.Trichy

Page 15: Microgrid. iettrichy

Advantages & DisadvantagesMicrogrid Advantages

The use of both electricity and heat permitted by the close proximity of the generator to the user, thereby increasing the overall energy efficiency.

Microgrid can act to mitigate the electricity costs to its users by generating some or all of its electricity needs.

04/10/23 15IET.Trichy

Page 16: Microgrid. iettrichy

Advantages & DisadvantagesMicrogrid Disadvantages

Voltage, frequency and power quality are three main parameters that must be considered and controlled to acceptable standards whilst the power and energy balance is maintained.

Electrical energy needs to be stored in battery banks thus requiring more space and maintenance.

Resynchronization with the utility grid is difficult.

04/10/23 16IET.Trichy

Page 17: Microgrid. iettrichy

Advantages & DisadvantagesMicrogrid Disadvantages

Microgrid protection is one of the most important challenges facing the implementation of Microgrids.

Issues such as standby charges and net metering may pose obstacles for Microgrid.

Interconnection standards needs to be developed to ensure consistency. IEEE P1547, a standard proposed by Institute of Electrical and Electronics Engineers may end up filling the void.

04/10/23 17IET.Trichy

Page 18: Microgrid. iettrichy

Future Directions on Microgrid Research

To investigate full-scale development, field demonstration, experimental performance evaluation of frequency and voltage control methods under various operation modes.

Transition between grid connected and islanded modes on interaction phenomena between distribution generation and high penetration of distributed generation.

Transformation of Microgrid system today into the intelligent, robust energy delivery system in the future by providing significant reliability and security benefits.

04/10/23 18IET.Trichy

Page 19: Microgrid. iettrichy

References

A. A. Salam, A. Mohamed and M. A. Hannan. "TECHNICAL CHALLENGES ON MICROGRIDS" (DECEMBER 2008)http://www.arpnjournals.com/jeas/research_papers/rp_2008/jeas_1208_146.pdf

S. Abu-Sharkha, R.J. Arnolde, J. Kohlerd, R. Lia, T. Markvarta, J.N. Rossb, K. Steemersc, P. Wilsonb, R. Yaoc. "Can microgrids make a major contribution to UK energy supply?" (September 2004)

http://eprints.ecs.soton.ac.uk/11276/1/Microgrids.pdf

John Stevens. "Characterization of Microgrids in the United States", Sandia National Laboratories (January 2005)http://www.electricdistribution.ctc.com/pdfs/RDC_Microgrid_Whitepaper_1-7-05.pdf

Robert H. Lasseter, Paolo Piagi. "Microgrid: A Conceptual Solution", University of Wisconsin-Madison (June 2004)http://www.pserc.wisc.edu/ecow/get/publicatio/2004public/lasseterpesc04us.pdf

04/10/23 19IET.Trichy

Page 20: Microgrid. iettrichy

References

"Integration of Distributed Energy Resources - The CERTS MicroGrid Concept", Consultant Report (October 2003)http://www.pserc.org/cgi-pserc/getbig/researchdo/certsdocum0/certspubli/certsmicrogridwhitepaper.pdf

"Why the Microgrid Could Be the Answer to Our Energy Crisis"http://www.fastcompany.com/magazine/137/beyond-the-grid.html

"How a Microgrid Works"http://science.howstuffworks.com/microgrid.htm

“The Rise of MicroGrid Power Networks"http://www.sustainablefacility.com/Articles/Feature_Article/58905d08bd629010VgnVCM100000f932a8c0____

04/10/23 20IET.Trichy

Page 21: Microgrid. iettrichy

04/10/23 21IET.Trichy

Page 22: Microgrid. iettrichy

04/10/23 22IET.Trichy