Abstract: The invention is a power electronic system comprising at least one power electronic component implemented at least partly on at least one circuit board. The circuit boards are planar and circular or toroidal in shape with the center thereof comprising a circular opening having a diameter D cooperating with a hose for circulating a flow.

Abstract: The invention is a drive system comprising an inverter comprising N arms, each arm including an upper half-arm and a lower half-arm each comprising at least one switching module, a rotary machine connected to the inverter, including a rotor having at least one magnetic element made from a modular magnetization material and a control device which, during magnetization controls the inverter to simultaneously for each one of m arms, set each switching module of the upper half-arm and turned on and each switching module of the lower half-arm is turned off, for each one of k other arms, set each switching module of the upper half-arm to be off and each switching module of the lower half arm to be on, and for each of the remaining arms, set each switching module to be off.

Abstract: The invention is an electronic power system (1) for energy conversion, comprising at least one electronic amplifier driver circuit (10), at least one floating-ground isolated power supply (11) and at least one digital computation unit (2) for generating control signals (12). The invention more specifically relates to a floating-ground isolated power supply (11) from control signals (12).

Abstract: The invention relates to a drive system comprising an inverter a first input, a second input and N outputs, a rotary machine comprising a stator and a rotor comprising at least one magnetic element made from a modular magnetization material, an output switching device connected between a common point and the second input, and a control device which simultaneously during magnetization of the at least one magnetic element step controls the output switching device to be on for a predetermined magnetization time interval, and controls the inverter to connect during the magnetization time interval, the first input to at least one and at most N-1 outputs.

Abstract: The invention is a device (1) for cooling a power electronic system (EP) comprising at least one power electronic component (2) mounted on at least one circuit board (3), the cooling device (1) comprises a hose (4) for circulating a flow (5) at an ambient temperature. The cooling device (1) comprises a first heat exchange surface (6) that is thermally connected to the power electronic components (2) and at least one second heat exchange surface (7). The second heat exchange surface (7) is for heat exchange with the flow (5) circulating through the hose. The second heat exchange surface (7) is fitted inside the circulation hose (4) to remove heat by convection with the circulating flow (5). The second heat exchange surface (7) is thermally connected to the first heat exchange surface (6).

Abstract: In an inverter system (1) associated with an electric machine (2), a control device (9) involves a pulse width modulation technique with a variable frequency in order to optimize the efficiency of the system. According to the invention, the current switching frequency values are limited according to other criteria, among which noise or the torque deformations of machine (2) or the electrical loads imposed on a capacitor (8) of the filter stage (4).

Abstract: The invention is an electronic power system (1) for energy conversion, comprising at least one electronic amplifier driver circuit (10), at least one floating-ground isolated power supply (11) and at least one digital computation unit (2) for generating control signals (12). The invention more specifically relates to a floating-ground isolated power supply (11) from control signals (12).

Abstract: The present invention is a method of determining at least two equivalent insulation resistances for an electric system including a power source (2), an inverter (11), an electric load (3) and a measurement circuit (5). Measurements are performed during operation of the electric system, when the controlled switches of inverter (11) are in a zero sequence. The present invention also relates to a control system implementing same.

Abstract: The invention is a power electronic system comprising at least one power electronic component implemented at least partly on at least one circuit board. The circuit boards are planar and circular or toroidal in shape with the center thereof comprising a circular opening having a diameter D cooperating with a hose for circulating a flow.

Abstract: The invention is a device (1) for cooling a power electronic system (EP) comprising at least one power electronic component (2) mounted on at least one circuit board (3), the cooling device (1) comprises a hose (4) for circulating a flow (5) at an ambient temperature. The cooling device (1) comprises a first heat exchange surface (6) that is thermally connected to the power electronic components (2) and at least one second heat exchange surface (7). The second heat exchange surface (7) is for heat exchange with the flow (5) circulating through the hose. The second heat exchange surface (7) is fitted inside the circulation hose (4) to remove heat by convection with the circulating flow (5). The second heat exchange surface (7) is thermally connected to the first heat exchange surface (6).