摘要:
The invention relates to a system for dissipating (10) regenerated electric energy produced by an electric actuator (1) of an aircraft, the dissipating system (10) including: a resistor (R); two switching arms (12, 13), each switching arm (12, 13) being connected in series with the resistor (R), the two switching arms (12, 13) being connected together in parallel, each switching arm (12, 13) including two switches (Q1, Q2, Q3, Q4) connected to one another in series, each switch (Q1, Q2, Q3, Q4) including two terminals and a control grid, each switch (Q1, Q2, Q3, Q4) being capable of being controlled by controlling the potential applied to the control grid (G1, G2, G3, G4) thereof; and measurement means (MM1, MM2, MM3, MM4) capable of measuring the voltage at the terminals of each switch (Q1, Q2, Q3, Q4).
摘要:
A railway network (10) comprising a track (12), a network energy supply (14) and several trains (16) that can be connected to the network energy supply (14) via means (20) of connection (16) to the network energy supply (14) and each comprising an internal energy storage system (24) for receiving and storing energy originating from said train (16) or trains (16) of the railway network (10) and for furnishing said train (16) or trains (16) of the railway network (10) with energy. Each train (16) is able to pass from an in-service state in which it is able to move around on the system of rails (12) to a stopped state in which it is unable to move around on the system of rails (12) and vice versa. At least one of the trains (16) of the railway network (10) is both in the stopped state and under tension, its internal energy storage system (24) being connected to the network energy supply (14).
摘要:
A dynamic braking grid arrangement for reducing EMI generated by dynamic or partial regenerative electrical braking of an electric traction motor powered vehicle coupled to a wayside power source by a third rail or catenary. The grid arrangement comprises a high-power dissipation resistance grid having a plurality of separately defined resistance elements, each having a generally elongate configuration. Mounting means support each of the grid elements adjacent to and parallel with each other of the elements. A plurality of electrical conduction devices connect the elements into an electrical circuit such that current passes through at least one element in a first direction and through at least one adjacent element in a second opposite direction such that EMI generated by any one element is substantially cancelled by EMI generated by an adjacent element.