Multimode power processor

Patent · Tue Jul 27 00:00:00 EDT 1999

OSTI ID:6314693

O'Sullivan, G A; O'Sullivan, J A

In one embodiment, a power processor which operates in three modes: an inverter mode wherein power is delivered from a battery to an AC power grid or load; a battery charger mode wherein the battery is charged by a generator; and a parallel mode wherein the generator supplies power to the AC power grid or load in parallel with the battery. In the parallel mode, the system adapts to arbitrary non-linear loads. The power processor may operate on a per-phase basis wherein the load may be synthetically transferred from one phase to another by way of a bumpless transfer which causes no interruption of power to the load when transferring energy sources. Voltage transients and frequency transients delivered to the load when switching between the generator and battery sources are minimized, thereby providing an uninterruptible power supply. The power processor may be used as part of a hybrid electrical power source system which may contain, in one embodiment, a photovoltaic array, diesel engine, and battery power sources. 31 figs.

• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-94ER81689
• Assignee: Abacus Controls Inc., Somerville, NJ (United States)
• Patent Number(s): US 5929538; A
• Application Number: PPN: US 8-884306
• OSTI ID: 6314693
• Resource Relation: Patent File Date: 27 Jun 1997
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
24 POWER TRANSMISSION AND DISTRIBUTION
14 SOLAR ENERGY
COMPUTERIZED CONTROL SYSTEMS
CONTROL THEORY
ELECTRIC BATTERIES
OFF-PEAK ENERGY STORAGE
CONTROL SYSTEMS
ELECTROCHEMICAL CELLS
ENERGY STORAGE
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
STORAGE
200107* - Fossil-Fueled Power Plants- Off-Peak Energy Storage- (1980-)
240100 - Power Systems- (1990-)
140600 - Solar Energy- Photovoltaic Power Systems