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Intelligent Micro-Grid Demonstrator<br />R. E. Hebner, J. D. Herbst, A. L. Gattozzi<br />Center for Electromechanics<br />...
Electric ship            Micro-grid<br />Close similarity but with unique features  <br />Special characteristics of ship’...
Micro-grid Technical Challenges<br />Increasing incidence of power electronics<br />Co-existence of ac and dc sections<br ...
CEM-UT Micro-Grid Demonstrator<br />
DC Bus:<br />2 parallel AWG535 DLO cable<br />2 kV, 1.6 kA, 31 m long<br />
Preliminary Investigations<br />Many components developed over time and tested individually<br />Computer models of compon...
Stability of Common DC Bus Topology<br />
Constant Power Load Instability<br />Constant power load fed by dc source:<br />
(16)<br />(21)<br />
Experimental Test<br />
15 kW<br />21.5 kW<br />
Experimental verification work<br /><ul><li>CEM has all the major building blocks of a ship’s electrical power system
An electrical micro-grid is being assembled to collect experimental data</li></li></ul><li>
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Intelligent microgrid demonstrator angelo gattozzi - may 2010

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Transcript of "Intelligent microgrid demonstrator angelo gattozzi - may 2010"

  1. 1. Intelligent Micro-Grid Demonstrator<br />R. E. Hebner, J. D. Herbst, A. L. Gattozzi<br />Center for Electromechanics<br />University of Texas, Austin<br />May 19, 2010<br />
  2. 2. Electric ship Micro-grid<br />Close similarity but with unique features <br />Special characteristics of ship’s power system:<br />Wide variety of loads, from continuous duty to pulsed loads<br />Minimal available margin of generated power over total required<br />Greater reliance on energy storage to supply intermittent loads<br />Many aspects are very similar<br />
  3. 3. Micro-grid Technical Challenges<br />Increasing incidence of power electronics<br />Co-existence of ac and dc sections<br />Presence of non-traditional energy resources<br />More decentralized control system<br />Lack of experimental data especially at MW power levels<br />CEM-UT micro-grid demonstrator attempts to bridge this gap<br />
  4. 4. CEM-UT Micro-Grid Demonstrator<br />
  5. 5. DC Bus:<br />2 parallel AWG535 DLO cable<br />2 kV, 1.6 kA, 31 m long<br />
  6. 6.
  7. 7.
  8. 8. Preliminary Investigations<br />Many components developed over time and tested individually<br />Computer models of components<br />Models of various topologies<br />Comprehensive model of micro-grid being developed<br />Preliminary tests on sub-assemblies<br />System stability issues<br />
  9. 9. Stability of Common DC Bus Topology<br />
  10. 10.
  11. 11.
  12. 12. Constant Power Load Instability<br />Constant power load fed by dc source:<br />
  13. 13.
  14. 14.
  15. 15. (16)<br />(21)<br />
  16. 16.
  17. 17. Experimental Test<br />
  18. 18. 15 kW<br />21.5 kW<br />
  19. 19. Experimental verification work<br /><ul><li>CEM has all the major building blocks of a ship’s electrical power system
  20. 20. An electrical micro-grid is being assembled to collect experimental data</li></li></ul><li>
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