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SYSTEM AND METHOD FOR PROTECTING AGAINST SHORT CIRCUITS IN ELECTRIC POWER DISTRIBUTION ARCHITECTURES WITH TWO VOLTAGE LEVELS

  • US 20050002140A1
  • Filed: 05/21/2004
  • Published: 01/06/2005
  • Est. Priority Date: 11/27/2001
  • Status: Abandoned Application
First Claim
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1. A system for protection against short-circuits in electric power distribution architectures at two voltage levels, comprising at least a first battery B1 at a first voltage level and a second battery B2 at second, higher voltage level, both provided with an automatic disconnection device SDB and intended for a differentiated electric power supply to respective network sectors provided with power distribution units (10), (20), (30) to the loads (12), (22), (23), (32), (33), each one of the units (10), (20), (30) being controlled by a corresponding microcontroller (10a), (20a), (30a), said at least first battery B1 and sector or sectors that it supplies being susceptible of being fed in turn from the second battery B2 through a converter DC/DC, said battery B2 being connected to a voltage generator, characterized in that said first battery B1, at a lower voltage level, has an associated module SMM associated based on a microcontroller applied to monitoring at least the voltage and current at the posts of said battery B1 and to sensing an operating state of said converter DC/DC, which monitoring module of battery B1 is connected through a port of its microcontroller and a communications network N with each one of control microcontrollers (10a), (20a), (30a) of the power distribution units (10), (20), (30) to the loads (12), (22), (23), (32), (33), in order to, facing a short-circuit situation sensed by said monitoring module SMM, according to the detection of a predetermined state of the converter DC/DC, followed by some predetermined, sensed voltage and current values, inform each one of the microcontrollers (10a), (20a), (30a) of said power distribution units (10), (20), (30) in order to carry out a short-circuit protection process.

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