Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1993-05-14
1994-12-27
Pellinen, A. D.
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
307 22, 307 26, H02J 304, H02J 906
Patent
active
053768280
ABSTRACT:
A shunt connected energy stabilizing system with isolation switching for providing stored energy to loads or to a utility or industrial electrical distribution system or source of electrical power. An energy backup and recovery system stores energy in a superconducting magnet and releases the energy to a real power/reactive power (VARs) generator which in turn delivers energy to either the loads or to both the loads and the source of electrical power. During periods of voltage sag or power outage, an isolation switch provides a way for isolating the loads from the source of power so that energy can be supplied to the loads only to provide "ride-thru". In effect, the isolation of the load sheds this load from the power system, thereby boosting the rest of the electrical distribution to a level so that other loads on the power system are not disturbed by the voltage sags. By supplying energy to the loads only, small superconducting magnets can be used thereby providing economic and size advantages. The isolation switch also provides a smooth transition from the real power generation to the VAR compensation mode, and vice versa. Additionally, the isolation switch can direct stored energy to both the electrical system and to the loads at the same time.
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DeWinkel Carel C.
Kim Sang H.
Koeppe Paul F.
Elms Richard T.
Pellinen A. D.
Superconductivity, Inc.
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