Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Renault S.a.s.

Remy Thomas

Ghislain Despesse

Pierre Perichon

Sylvain Bacquet

Eric Fernandez

Matthieu Desbois-Renaudin

Vincent Heiries

Yan Lopez

Laurent Garnier

Othman Ladhari

Michael Palmieri

Leandro Cassarino

Anh Linh Bui Van

Christophe Lefebvre

A method for controlling a power supply device of an electrical system, the device including at least one separate power supply assembly per phase of the electrical system, each power supply assembly including at least one battery pack defined by a state parameter and provided with at least one battery to supply a control voltage to the phase to which it is connected, taking into account at least one setpoint value. The method includes executing at least one correction block receiving as input each setpoint value and the state parameter of each battery pack of the power supply assemblies of the system, and for each power supply assembly, the correction block is configured to determine a correction value to be applied directly or indirectly to its setpoint value.

Method for controlling a power supply device of an electrical system

A system and corresponding method, including a battery including a plurality of battery modules arranged in series, each module including a switch and a diode arranged in series and connected in parallel to the module. The system further includes a capacitor connected directly by an electrical connection to a point situated between the diode and the switch of each module, and directly to the negative terminal of the battery, and a load connected in parallel to the capacitor, a mechanism controlling each module switch using a pulse width modulation signal having a duty cycle that varies between 0% and 100%.

System comprising a battery formed by battery modules, and corresponding method for connecting or disconnecting a battery module

An electrical power supply system has electrical energy storage modules and an interconnection interface. Each module includes connection terminals of opposite polarities and an energy storage element connected between them. The interface includes pairs of input terminals and output terminals for a load's power supply. Each pair of input terminals connects removably to connection terminals of a respective storage module. The interface forms parallel branches between the two output terminals. Each includes a storage element. Each branch includes a rheostat in series with a corresponding storage element of the branch. The interface includes a device for measuring current passing through each of the branches, and a control circuit for controlling resistances of the rheostats of the branches as a function of the measured current so as to maintain a current intensity passing through the rheostats to be below a threshold.

Electrical power supply system with alterable capacity

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Grenoble, France

Remy Thomas