In a vehicle including a generator and a drive motor for traveling that operates with generated electric power of the generator, setting a control mode of a carrier frequency used for PWM control for adjusting the electric power of the generator to either ...

A rotating electrical machine control device shifts a control system to synchronous five-pulse control when an operating point crosses a second boundary K22 from a state in which asynchronous pulse-width modulation control is being executed, and shifts the...

[Task] To provide a vehicle drive system that includes a motor capable of suppressing demagnetization of a permanent magnet section.[Solution] A vehicle drive system 5 includes a motor 2 that has a cylindrical stator 17 and a cylindrical rotor 19 provided ...

The disclosure relates to an electric aircraft propulsion assembly (300) comprising: an electric storage unit (302); a first electric motor (303) connected to power a first propulsor (305); a first converter (307) configured as a DC:AC converter having inp...

A control device for an electric vehicle improving the responsiveness of a motor and leading to improvement in occupant's riding comfort during power running and regenerative control of the motor. A motor control module (29) includes: a current PI control ...

[Object] To provide a field-winding rotating electrical machine capable of, even when field current is limited, releasing the limitation of field current within a predetermined range of time in the case where a vehicle needs a normal output. [Solution] A f...

A power conversion system includes a controller to control discharge of a smoothing condenser based on at least one signal received through an input. The at least one signal indicates a failure of a discharge circuit configured to discharge the smoothing c...

The apparatus (10) has a rectifier device (G) that is interconnected in parallel with a current adjusting unit (TS). A half-bridge (H1) is provided in series-connection with the switches (S1,S2). An inductor (L) is connected to a connection point of the sw...

In driving method and system for an electrical rotating machine, the electrical rotating machine comprising two rotors, each rotor being independently driven by means of a compound current generated by a multi-phase inverter, and a stator on which a plural...