Compact and modular electrical power supply unit, with multi-converters, notably for fast recharging terminals for electric vehicles
First Claim
1. A modular device (11) for conversion of electrical energy for implementing the recharging of an electrical battery (58), or user battery, using an AC line supply (61) and supplementary sources of electrical energy (59), characterized in that it comprises:
- a plurality of switching modules (122a, 122b, 122c, 13, 14), with a substantially identical structure, each switching module being associated with one of the available sources of electrical energy (61, 59) and producing, by chopping the voltage delivered by the source with which a DC voltage of given value is associated;
a power DC bus comprising two electrical lines (23, 24), to which each of the various available sources of electrical energy is connected by means of the switching module which is associated with it, each switching module being composed of two electronic switches configured in series between the two lines (23, 24) of the power DC bus,a control circuit (22) which generates the chopping controls applied to the switches of the various switching modules (122a, 122b, 122c, 13, 14), the chopping control applied to a given switching module being defined by a control law which depends on the voltage and on the charge current (53) necessary for performing a recharging of the electrical battery in question (58) and on the maximum power (51) available from the AC line supply (61);
an accommodation structure (31) configured for receiving the various switching modules and forming the power DC bus, said accommodation structure comprising a plurality of functionally identical locations onto which the various switching modules can be placed.
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Accused Products
Abstract
The device includes a set of electronic switches having a common structure and forming modules for converting electrical energy and a power DC bus onto which the modules are connected in parallel. These modules are controlled by a control circuit so as to supply electrical energy originating from external sources of energy over the power DC bus or to extract electrical energy over this bus to recharge batteries. The device includes at least one AC-DC conversion module configured for carrying out the rectification of an AC line supply and for powering the DC bus, a DC-DC conversion module configured for charging a user battery from the DC bus and a DC-DC conversion module configured for alternatively allowing the recharging of a storage battery from the DC bus or the discharge of the same battery over the latter. The various modules are mounted onto an accommodation structure forming a heat dissipator.
9 Citations
14 Claims
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1. A modular device (11) for conversion of electrical energy for implementing the recharging of an electrical battery (58), or user battery, using an AC line supply (61) and supplementary sources of electrical energy (59), characterized in that it comprises:
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a plurality of switching modules (122a, 122b, 122c, 13, 14), with a substantially identical structure, each switching module being associated with one of the available sources of electrical energy (61, 59) and producing, by chopping the voltage delivered by the source with which a DC voltage of given value is associated; a power DC bus comprising two electrical lines (23, 24), to which each of the various available sources of electrical energy is connected by means of the switching module which is associated with it, each switching module being composed of two electronic switches configured in series between the two lines (23, 24) of the power DC bus, a control circuit (22) which generates the chopping controls applied to the switches of the various switching modules (122a, 122b, 122c, 13, 14), the chopping control applied to a given switching module being defined by a control law which depends on the voltage and on the charge current (53) necessary for performing a recharging of the electrical battery in question (58) and on the maximum power (51) available from the AC line supply (61); an accommodation structure (31) configured for receiving the various switching modules and forming the power DC bus, said accommodation structure comprising a plurality of functionally identical locations onto which the various switching modules can be placed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification