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Connection and Disconnection Transients for Micro-Grids under unbalance load condition
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| Author(s) |
Joan ROCABERT, Gustavo M.S. AZEVEDO, Jose Ignacio CANDELA, Blaabjerg FREDE, Pedro RODRIGUEZ |
| Abstract |
The recent grid integration of Distributed Energy Resources (DER) possibility the formation ofintentional islands in the case of a grid fault conditions. For such island formation is required an activeagent capable of governing the micro-grid connection state in a safe mode, especially in connectionand disconnection transients. This paper focuses on the design of a method oriented to carry out astable intentional disconnection, and later re-connection, of local grids from the main distribution gridin an intentional way; also under unbalance load condition. Seamless transfer between grid-connectedand isolated mode has been achieved in an alpha-beta stationary reference frame with a frequencybased synchronization control loop. Simulation and experimental results are provided to verify theproper performance of the proposed solution. |
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| Filename: | 0842-epe2011-full-15305588.pdf |
| Filesize: | 528.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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