Abstract: A matrix connection device disposed between n unidirectional energy sources (PV1, PV2, PVn) and n power converters (C1, C2, Cn) for the purpose of powering a common load (10), said device comprising: n matrix switch units (I1, I2 to In), each of which comprises n link switches (Ki1, Ki2 to Kin) having their outlets connected together and having their n inlets connected to the n outlets of said photovoltaic panels and/or wind turbines; at least one additional switch unit (In+1) comprising n switches (Kn+11, Kn+12 to Kn+1n) having their outlets connected together and their n inlets connected to respective ones of the n outlets of the unidirectional energy sources; and a monitoring and control circuit (14) for starting up or not starting up said power converters as a function of the power available at each of said unidirectional energy sources, and then for keeping them switched on or for deactivating them as a function of the power consumed by each of them.

Abstract: A matrix connection device disposed between n unidirectional energy sources (PV1, PV2, PVn) and n power converters (C1, C2, Cn) for the purpose of powering a common load (10), said device comprising: n matrix switch units (I1, I2 to In), each of which comprises n link switches (Ki1, Ki2 to Kin) having their outlets connected together and having their n inlets connected to the n outlets of said photovoltaic panels and/or wind turbines; at least one additional switch unit (In+1) comprising n switches (Kn+11, Kn+12 to Kn+1n) having their outlets connected together and their n inlets connected to respective ones of the n outlets of the unidirectional energy sources; and a monitoring and control circuit (14) for starting up or not starting up said power converters as a function of the power available at each of said unidirectional energy sources, and then for keeping them switched on or for deactivating them as a function of the power consumed by each of them.

Abstract: The invention relates to an electronic power module comprising electronic power components (1) each having at least one contact face (2), control connections (4) for connecting the components to a control module, power connections (5) for conveying power between the components and/or other modules, and at least one metal heat exchanger (6) for removing power dissipated by the Joule effect in the electronic power components (1). According to the invention the contact faces (2) of the electronic power components (1) are mounted directly on the metal heat exchanger (6), the metal heat exchanger (6) being at the same potential as the contact faces (2) of the electronic power components (1).

Abstract: A superconducting switch comprising a portion of cable including a resistive central strand that is non-superconducting having a plurality of super-conducting strands or of superconductors twisted thereabout, and separated from the central strand by electrical insulation, the cable as a whole being insulated from the external cooling medium by thermal insulation. The central strand is electrically connected to the superconducting strands or the superconductors at each end of a portion of cable. A portion of the length of the resistive central strand extends outside the cable at a point along the length of the portion of said cable and is coupled to a control device situated outside the cooling medium, wherein the control device injector an electrical current into the circuit formed by the resistive central strand that is connected at its ends to the superconducting strands or to the superconductors.

Abstract: The present invention relates to a superconductive coil assembly which may be used particularly for a current limiter, the coil assembly comprising a plurality of coaxial cylindrical coils electrically connected in series, each coil comprising two windings of superconductive material electrically connected in parallel, arranged coaxially and wound in opposite directions, wherein in each coil, the windings are separated by a material which has a surface resistance in the radial direction lying in the range 10.sup.-5 .OMEGA..m.sup.2 to 10.sup.-2 .OMEGA..m.sup.2 at the temperature of the cryostat, and in which the strands which constitute the superconductive wires may themselves be covered with a layer of the same material.