SYSTEM AND METHOD FOR PROTECTING AGAINST SHORT CIRCUITS IN ELECTRIC POWER DISTRIBUTION ARCHITECTURES WITH TWO VOLTAGE LEVELS
First Claim
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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Abstract
A protection system and method against short-circuits in electric power distribution architectures at two voltage levels, with a battery B1 and a second battery B2 at a higher voltage level, provided with automatic disconnection means SDB, and for differentiated supply of electric power to network sectors provided with power distribution units (10), (20), (30) to loads (12), (22), (23), (32), (33), said units (10), (20), (30) including a microcontroller (10a), (20a), (30a), said first battery B1 and sector or sectors it feeds being susceptible of being fed from the second battery B2, connected to a voltage generator by a converter DC/DC, comprising monitoring the voltage and current at the posts of said battery B1 and the state of the converter DC/DC, and if said state goes on to become a predetermined one and, then, said voltage and current levels exceed a threshold, microcontrollers (10a, 20a, 30a) are informed by a communications network N to carry out a short-circuit protection process.
34 Citations
19 Claims
- 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.
- 11. A method 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 a second, higher voltage level, both provided with an automatic disconnection device SDB and destined to a differentiated supply of electric power to respective network sectors provided with power distribution units (10), (20), (30) to loads (12), (22), (23), (32), (33), each one of said units (10), (20), (30) being controlled by a corresponding microcontroller (10a), (20a), (30a), said at least first battery B1 and sector or sectors it supplies being susceptible of being fed in turn from the second battery B1 through a converter DC/DC, said battery B2 being connected to a voltage generator, characterized by performing permanent monitoring of at least the voltage and current at the posts of said battery B1, at a lower voltage level, as well as of the state of the converter DC/DC which interrelates said two batteries B1 and B2, and in that, in case it is sensed that said state of the converter DC/DC goes on to become a predetermined one, and after this said voltage and current values exceed a certain threshold, each one of the microcontrollers (10a, 20a, 30a) of said power distribution units is informed through a communications network N so as to perform a short-circuit protection process.
Specification