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6

ISCAS
2005
IEEE

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Observed hybrid oscillations in an electrical distribution system

13 years 10 months ago

Observed hybrid oscillations in an electrical distribution system

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Slow oscillations, with a period of around 15 minutes, were observed in an 11kV electrical distribution system. Investigations determined that the oscillations were a result of interactions between tap-changing transformers and switched capacitors. Analysis required a hybrid systems framework, due to the non-smooth (switched) nature of these interactions. It was found that the oscillations could be suppressed by adjusting the lower limit of the capacitor deadband. A grazing bifurcation separated oscillatory from steady-state behaviour.

Vaibhav Donde, Ian A. Hiskens

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Added	25 Jun 2010
Updated	25 Jun 2010
Type	Conference
Year	2005
Where	ISCAS
Authors	Vaibhav Donde, Ian A. Hiskens

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