Commissariat a L'energie Atomique Et Aux Energies Alternatives

Vincent Massavie

Ghislain Despesse

Sébastien Carcouet

Xavier Maynard

The invention relates to an electrical energy converter including an inverter () for obtaining alternative electrical energy from a DC electrical energy source. The inverter includes a switch () having first and second conduction terminals for receiving an AC voltage, the electrical energy converter being suitable for supplying an output electrical energy to a load (). Said converter includes a capacitive circuit () with variable and controllable capacitance, connected between the inverter () and the load (), the control of a modification of said capacitance making it possible to obtain a modification of an electrical output parameter of the converter. The associated system for converting electrical energy includes such an electrical energy converter and a control module () configured for receiving as input a setpoint value of said output electrical parameter (V) of the converter and for controlling the variable capacitance of said capacitive circuit () as a function of said setpoint value.

Electrical energy converter and associated system for converting electrical energy

The present description concerns a power converter () comprising: a switch () comprising first () and second () conduction terminals intended to receive a first AC voltage (Vds), a first circuit () for detecting a minimum value reached by the first voltage at each halfwave, and for averaging minimum values over a plurality of halfwaves, and a second circuit () for controlling the switch configured, according to the average of said values, to turn on the switch when the first voltage is substantially null.

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Grenoble, France

Vincent Massavie