Local area network power management device

Abstract

The invention relates to a power management device (1) integrating a network input (3); a local area network power interface (5); an islanding switch (7); an uninterruptible power supply (9); a central controller (10); at least one industrial battery (11); at least one bidirectional electric vehicle charging station (12) (13) connected to the industrial battery (11) so that the industrial battery (11) can be used to charge the electric vehicle (13) and, when an electric vehicle (13) is plugged in with sufficient charge, a battery of the electric vehicle can be used to charge the industrial battery (11); a grid shaping inverter (14) so ​​that the power management device can operate in an islanding mode in which the industrial battery (11) and / or the electric vehicle battery (13) supply the power interface (5).Figure for the abridged version: Fig 1.

Claims

- measurement by the first voltage sensor (8) of a voltage above a connection threshold for a fourth predetermined duration, resulting in the closure of the islanding switch (7), - supply of critical loads of the local network by the public electricity network.

12. A method of use according to claim 11, further comprising, just before the step of closing the islanding switch (7), a step of synchronizing the voltage and / or frequency of the network forming inverter (14) to the voltage and / or frequency of the public electricity network.

13. Method of using according to any one of claims 11 to 12 a management device according to claim 10, comprising after the step of opening the islanding switch (7) a step of supplying the non-critical loads of the local network by the industrial battery (11), via the network forming inverter (14).

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