Electrical transmission or interconnection systems – Plural supply circuits or sources – One source floats across or compensates for other source
Reexamination Certificate
2005-07-19
2005-07-19
Riley, Shawn (Department: 2838)
Electrical transmission or interconnection systems
Plural supply circuits or sources
One source floats across or compensates for other source
C307S127000
Reexamination Certificate
active
06919650
ABSTRACT:
A hybrid use of a phase-locked-loop controller and a microprocessor-based controller to synchronize the phase angles of a three-phase AC power source, such as a static power converter, with those of a three-phase power grid. The phase-angle synchronization may enable the AC power source to be safely connected to the power grid to provide additional power capacity.
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Ballard Power Systems Corporation
Riley Shawn
Seed IP Law Group PLLC
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