Kabushiki Kaisha Toshiba

Nec Corporation

Nec Information Systems, Ltd.

Shinichi Noda

Sueyoshi Mizuno

Susumu Kinoshita

Kazuaki Yuuki

Kunihiko Wada

Hisashi Matsuda

Motofumi Tanaka

Hiroyuki Yasui

Naohiko Shimura

Yutaka Ishiwata

Shohei Goshima

Tamon Ozaki

Taihei Koyama

Yosuke Nakazawa

Nobuyuki Yagi

Daisuke Misu

Toshiki Osako

Yoshitaka Kobayashi

Toshimasa Yamada

Shigetomo Shiraishi

Nobutake Aikura

Takuro Hayashi

Hiroshi Akashio

Kazuaki Fukuda

Yoshio Morisaki

A wind power generation systemof an embodiment includes a rotorhaving a huband blades, a nacellepivotally supporting the rotor, a towersupporting the nacelle, an airflow generation deviceprovided in a leading edge of each of the bladesand having a first electrodeand a second electrodewhich are separated via a dielectric, and a discharge power supplycapable of applying a voltage between the electrodes of the airflow generation device. Further, the system includes a measurement device detecting information related to at least one of output in the wind power generation system, torque in the rotorand a rotation speed of the blades, and a control unitcontrolling the discharge power supplybased on an output from the measurement device.

Wind power generation system and control method for the same

A rotating electrical machine includes a stator and a rotor both accommodate in a frame, on which is mounted a control case to house a drive unit including an inverter. In the machine, the control case has a vibration suppression structure that suppresses vibration of the control case. The vibration suppression structure includes honeycombed ribs formed integrally with a wall surface of the control case.

Rotating electrical machine

A wind power generation systemof an embodiment includes a rotorhaving blades, an airflow generation deviceprovided in a leading edge of each of the bladesand having a first electrodeand a second electrodewhich are separated via a dielectric, a discharge power supplyapplying a voltage between the electrodes of the airflow generation device, and a control unitcontrolling the discharge power supply. The control unitcontrols the voltage to perform pulse modulation so that the value of a relational expression fC/U is 0.1 or larger and 9 or smaller where f is a pulse modulation frequency of the voltage, C is a chord length of the blades, and U is a relative velocity combining a peripheral velocity of the bladesand a wind velocity, so as to generate plasma induced flow.

According to one embodiment, a vehicle drive apparatus configured to drive a vehicle includes a motor arranged on a bogie to drive a wheel, a cooling fan arranged to be rotatable integrally with a rotational shaft of the motor to cool the motor, a control device arranged under a floor of the body to face the bogie and configured to supply an electric power to the motor and control the motor, and a ventilation duct arranged between the motor and the control device and configured to guide a cooling wind blown by the cooling fan into the control device.

Vehicle drive apparatus

A behavioral synthesis system has a scheduling unit and a mode control unit. The scheduling unit performs scheduling of a behavioral level description with reference to a resource quantity data indicating resource constraint and a resource delay data indicating delay times of respective resources. A single process described in the behavioral level description is divided into a plurality of description blocks, and a scheduling mode among a plurality of scheduling modes is designated with respect to each of the plurality of description block. The mode control unit refers to a mode designation code that indicates the designated scheduling mode and controls such that the scheduling unit performs the scheduling with respect to each description block in accordance with the designated scheduling mode indicated by the mode designation code.

Behavioral synthesis system, behavioral synthesis method, and behavioral synthesis program

A motor drive system-for a railway vehicle is capable of reducing the weight of wiring, electromagnetic noise, and manufacturing cost. The motor drive system includes an inverter. The inverter is configured to control a motor-and is divided into at least two separate inverter units that are arranged integrally with the motor.

Motor drive system for railway vehicle

A totally enclosed type main drive motor for a vehicle includes a stator core arranged on an inner circumference of an outer casing frame, a bracket arranged on one end of the outer casing frame to have a bearing built-in, a housing arranged on the other end of the outer casing frame to have a bearing built-in, a rotor shaft having its both ends supported by the respective bearings, a rotor core arranged on the rotor shaft, a fan arranged on one end of the rotor shaft, openings formed in both axial ends of a peripheral wall of the outer casing frame, connective air ducts arranged outside the peripheral wall so as to communicate with the openings and a cooler for connecting these connective air ducts with each other and also releasing heat of air flowing in the connective air ducts to outside air. The outer casing frame is attached to the vehicle so that a central axis of the outer casing frame extends horizontally and intersects with a traveling direction of the vehicle at right angles. With rotation of the fan, air inside the outer casing frame flows in the cooler in circulation to cool down the air. The totally enclosed type main drive motor is provided with guide plates that collect traveling wind flowing around the outer casing frame to the cooler.

Totally enclosed type main drive motor for vehicle

A behavioral synthesis system which synthesizes behavior without inline expansion of a callee function, even one which has a pointer as an argument during the synthesis of a caller function. There is also a language analyzer that analyzes the behavior level description for conversion into an internal representation for behavioral synthesis and one which represents a correspondence relationship between a pointer variable and a circuit entity. There is also a pointer-terminal converter that converts a pointer into a set of a terminal and condition in the internal representation generated by the language analyzer. Further, there is a behavioral synthesizer that processes the internal representation from which the pointer variable has been removed by the pointer terminal converter to generate a circuit description at low abstractness.

Behavioral synthesizer system, operation synthesizing method and program

An impeller used for cooling a dynamoelectric machine such as electric motors includes a disk and a plurality of blades arranged on the disk in a circle at unequal spaces so that a position angle .theta.n of an n-th blade is met by an equation:

Impeller for use in cooling dynamoelectric machine

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Kawasaki, Japan

Shinichi Noda