Microgrids offer a number of interesting and valuable capabilities along with challenging engineering questions: -Voltage and frequency stability: Does the microgrid include the correct mix of real and reactive power sources and sinks? How fast must non-critical loads be shed to maintain stability during unintentional islanding? -Protective relaying performance: How fast must faults be cleared from the islanded microgrid to prevent microgrid collapse? -Ground source arrangement: Where are the microgrid ground sources and how do they impact performance? -Arc flash hazards: How are they different in islanded operation and what can be done to mitigate increased flash hazards? This presentation describes tools, solutions, and lessons learned.
John Kumm, POWER Engineers
1800 West Park Drive, Suite 350
Westborough, MA 01581 USA
Phone +1 (508) 366-9339
Fax +1 (508) 366-0019
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