Mitsubishi Electric Corporation

Nagaoka University of Technology

National University Corporation Magaoka University of Technology

Tenjiro Hiwatari

Akira Satake

Sota Sano

Yuki Yokokura

Atsushi Yamamoto

Kiyoshi Ohishi

Yuto Kobayashi

A magnetic gear embedded rotating electric machine control device, which controls voltage applied to a stator winding of a rotating electric machine having a magnetic gear therein so that an output from the rotating electric machine follows an output command, includes: a damping command generator which generates a damping command using an angle between a stator and a high-speed rotor of the rotating electric machine detected by an angle detector; a first adder which adds the damping command to the output command, to generate a corrected output command; and an output controller which controls an output generated by the rotating electric machine, in accordance with the corrected output command.

Magnetic gear embedded rotating electric machine control device

A power conversion device comprises: power conversion circuitry for converting DC power into AC power and supplying it into a load according to a switching state quantity defined by combinations among switching parameters of switching devices; a voltage output calculation device for calculating a voltage output value on the power conversion circuitry, based on the switching state quantity; an integration value calculation device for acquiring a voltage reference integration value and a voltage output integration value by integrating a voltage reference value and the calculated voltage output value; a switching update-determination unit for outputting an update signal of the switching state quantity, based on the voltage reference integration value, its allowance value, and the voltage output integration value; and a switching determination table for determining a switching state quantity of the switching devices, based on the voltage reference integration value, the voltage output integration value and the update signal.

Power conversion device

The present invention includes a control amount calculation unit which calculates two or more control amounts each indicating a driving condition of a rotary electric machine on the basis of output current from and a switching state in a power converter; a limitation range-provided command value generation unit which generates limitation range-provided command values relative to command values for the control amounts; and a switching state determination unit which determines a switching state such that each control amount falls within the limitation range of the corresponding limitation range-provided command value. For at least one of the limitation range-provided command values, the limitation range thereof is temporally changed on the basis of the driving condition of the rotary electric machine.

Growing community of inventors

Niigata, Japan

Tenjiro Hiwatari