DEVICE FOR RECHARGING AN AUTOMOBILE BATTERY AND METHOD FOR MANAGING THE DEVICE
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Abstract
A rapid charging device for a battery includes a filtering stage of resistive-inductive-capacitive type to be connected to a three-phase network, a buck stage, a boost stage to be connected to the battery, an induction winding interposed between the buck stage and the boost stage, and a regulating unit capable of imposing chopping duty cycles on the buck stage and on the boost stage. The regulating unit compensates the phase shift induced by the filtering stage between the currents and the voltages taken from each phase of the three-phase network and also maintains the value of the current amplitude passing through the winding above a non-zero predefined threshold.
13 Citations
20 Claims
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1-10. -10. (canceled)
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11. A rapid charging device for a battery, comprising:
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a filtering stage of resistive-inductive-capacitive type to be connected to a three-phase network; a buck stage; a boost stage to be connected to the battery; an induction winding interposed between the buck stage and the boost stage; and a regulating unit configured to impose chopping duty cycles on the buck stage and on the boost stage, in which the regulating unit comprises means for compensating the phase shift induced by the filtering stage between the currents and the voltages taken from each phase of the three-phase network, and also comprises means for maintaining the value of the current amplitude passing through the winding above a non-zero predefined threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method for regulating a rapid charging device for a battery from a three-phase current, comprising:
controlling the chopping duty cycles (ai, a2, a3) of a buck stage, during which there is compensated, by combining the results of two regulating loops, a phase shift induced by a filtering stage of resistive-capacitive-inductive type, between the input current intensities (Ie1, Ie2, Ie3) of the device and the input voltages (Ve1, Ve2, Ve3) of the device. - View Dependent Claims (19, 20)
Specification