Toshiba Mitsubishi Electric Industrial Systems Corporation | Date: 2015-02-27
The material structure prediction apparatus includes a temperature calculator calculating temperatures at calculation points, based on a temperature condition, a nucleation count calculator calculating a nucleation count in the calculation target region, a precipitated phase generation point determining module determining, from the calculation points, a precipitated phase generation point, a grain growth calculator calculating a grain growth of the precipitated phase at the precipitated phase generation point, and a material structure prediction module predicting the structure of the material, based on the grain growth of the precipitated phase.
Toshiba Mitsubishi Electric Industrial Systems Corporation and Kabushiki Kaisha Toshida | Date: 2014-03-27
A synchronous reluctance motor includes: a rotor shaft; a rotor core fixed to the rotor shaft and on which a plurality of flux barriers are formed; a stator core on which a plurality of protruding stator teeth are formed; and multiphase armature windings of a plurality of poles wound around the plurality of stator teeth. The flux barriers include a plurality of first flux barriers formed to be spaced out in the circumferential direction from each other and extend in a radial direction, and a plurality of second flux barriers formed in each of circumferential angular regions sandwiched between the first flux barriers to form a curved surface convex toward the center of the rotation-axis and to spread and be spaced out in the circumferential direction from each other.
Toshiba Mitsubishi Electric Industrial Systems Corporation | Date: 2014-04-14
A hybrid power converter system that comprises a first power bus connected to a DC power source, a second power bus connected to an AC load, and a third power bus connected to an energy storage device. One or more power converters are connected to the first power bus in parallel and are connected with the second and third power buses, each by a switch. The system includes a first switch for connecting or disconnecting a power converter to or from the second power bus and a second switch for connecting or disconnecting the power converter to or from the third power bus, to switch the source of power being provided to the AC load either from the DC power source or the energy storage device. With additional power converters connected into the system in a similar manner, several combinations of power supply are possible.
Toshiba Mitsubishi Electric Industrial Systems Corporation and Kyoto University | Date: 2015-10-28
A method for forming a metal oxide film, the method including: forming a source solution containing metal into a mist, heating a substrate, supplying the source solution formed into a mist onto a first main surface of the substrate through a first supply path, and supplying hydrogen peroxide through a second path different from the first supply path onto the first main surface of the substrate, where the method further includes, in the following order, preliminarily preparing data showing a relationship among a molar ratio of an amount of the hydrogen peroxide to an amount of the zinc in the source solution, a carrier concentration of the metal oxide film, and a mobility of the metal oxide film, determining an amount of the hydrogen peroxide supplied with the data, and supplying the determined amount of the hydrogen peroxide through the second path onto the first main surface of the substrate.
Toshiba Mitsubishi Electric Industrial Systems Corporation | Date: 2015-03-27
A power converter includes a power conversion circuit including a switching element, a device including an inductance and provided on an AC side of the power conversion circuit, an output-amount measuring module configured to measure an output amount of an output from the power conversion circuit, and a switching frequency determining module configured to determine a switching frequency at which the switching element is switched to reduce a loss including a loss due to the device, based on the output amount measured by the output-amount measuring module.