modified ppt for mtech project
TRANSCRIPT
13/11/2014SMART GRID TECHNOLOGY DEPT.ECE SDMIT
REVIEW ON THE PERFORMANCE OF HYBRID GRID UNDER DIFFERENT FAULT
CONDITIONS
Under the esteemed guidance of
Presented by:14331D5603
CONTENTSObjective of the thesisLiterature reviewIntroductionSolar and wind energyPower quality issuesSimulation and resultsWork done to be done conclusion
OBJECTIVE OF THE THESIS Grid integrated system study on Integration of DG’s Key challenges observed Modelling and study of hybrid systems
under different fault conditions Propose suitable methods to over come
some of these challenges
LITERATURE REVIEWSo far I have reviewed approx. 25 papers on micro grids [1] F Kanellos et aI., "Micro-grid Simulation during
Grid-connected and Islanded modes of Operation," The International Conference on Power Systems Transients, (IPST'05), Montereal, 19-23 June 2005, Paper No. IPST05-113..
[2] Z. Chen and W. Kong, "Protection Coordination Based on Multi Agent for Distribution Power System with Distribution Generation Units," 2007, pp. 1-5.
[3] T. Quoce et aI., "Dynamics Analysis of an Insulated Distribution Network," IEEE Proceedings of Power System Conference and Exposition, Vol. 2, 2004, pp.815-821.
[4] C.L.T Borges, and D.M. Falcao, "Impact of Distributed Generation Allocation and Sizing on Reliability, Losses, and Voltage Profile", 2003 IEEE Bologna Power Tech Conference Proceedings, Bologna, Volume 2, 23-26 June 2003
INTRODUCTION
A MICROGRID is a group of interconnected loads and distributed energy resources within clearly defined electrical boundaries that acts as a single controllable entity with respect to the grid.
If desired a microgrid can connect and disconnect from the grid to enable it to operate in both grid-connected or island-mode.
This analysis mainly includes micro grid operation under: Grid connected mode Islanded mode
03/05/2023 7
MICROGRID OPERATING MODES
Island Mode:
Grid Connected Mode:
IMPORTANCE & BENEFITSIt enables modernization
of the grids.It enhances the integration
of distributed and renewable energy resources to meets up with the end user needs.
It provides support and backup for main grid.
Smart control of energy demand and increase power quality.
Reduce emitting green house gaseous(GHG)
POWER QUALITY ISSUES IN HDGS
SLIDE 15
9
VOLTAGE REGULATION
DG GROUNDIN
G ISSUE
HARMONIC DISTORTION
ISLANDING POWER
QUALITY ISSUES
Fig.10. Islanding
CHALLENGES IN HDGSA risk of out-of-phase reconnection for synchronized
connection. Coordination with load-shedding schemesVoltage and frequency regulationLoad (phase) imbalanceLoad and generation matchingPossible damage to equipment due to voltage and frequency
fluctuations.lower capacity utilization factors.high capital costs when compared to conventional power
systems.Lack of operation and maintenance services providers is
an issue that needs attention.
WORK DONE SO FAR:THE SIMULINK MODEL OF THE WIND GENERATION BASED SYSTEM:
SIMULATION RESULTS
WORK TO BE COMPLETED…Transient behaviour of the integrated hybrid grid system powered by both wind and photo voltaic generation under normal grid connected mode and islanding condition are to be studied by using PSCAD/EMTDC.
The obtained results will be analyzed under different fault conditions to obtain a solution for challenging issues like harmonic distortions and frequency variations.
CONCLUSION