Kabushiki Kaisha Toshiba

Sueyoshi Mizuno

Hisashi Matsuda

Shinichi Noda

Susumu Kinoshita

Kunihiko Wada

Motofumi Tanaka

Hiroyuki Yasui

Naohiko Shimura

Yutaka Ishiwata

Satoshi Suzuki

Mimpei Morishita

Shohei Goshima

Tamon Ozaki

Tadashi Munakata

Yoshikata Kobayashi

Shinji Takahashi

Shin Murakami

Toshiki Osako

Toshio Hirano

Norihito Togashi

Toshimasa Yamada

Yuuji Takiguchi

Hideyuki Shimada

Katsune Zaitsu

Kenji Osaki

Hitoshi Sakakida

Kohichi Nakayama

Ikuo Saito

Yoshio Morisaki

Toshiaki Hirate

Tetsushi Koshiyama

Satoshi Irie

Masanori Sotodate

According to the embodiment, there is provided a blade vibration measuring apparatus, having, a contactless displacement sensor which outputs a displacement measurement signal as measuring a displacement of a turbine moving blade in a rotation axis direction, a blade top position identifying device which outputs a blade top position identification signal to identify a top position based on a distance between the contactless displacement sensor and the top position of the turbine moving blade as receiving the displacement measurement signal output from the contactless displacement sensor, and a blade vibration calculating device which calculates vibration amplitude and a vibration frequency of the turbine moving blade based on temporal variation of the distance between the contactless displacement sensor and the top position of the turbine moving blade as receiving the blade top position identification signal output from the blade top position identifying device.

Blade vibration measuring apparatus

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.

The inspection apparatus for inspecting performance of a structure such as stator windings of an electric rotating machine of the invention comprises a probe including a measuring element, an arm unit and a cylinder face circumferential moving apparatus. The arm unit has an arm link section supporting the probe (mainly comprising a leading end link assembly and an arm posture keeping mechanism), an arm housing section (mainly comprising a guide rail) regarding driving of this arm link section, and an arm driving mechanism. The arm driving mechanism causes the leading end link assembly to project from the guide rail at an angle toward a measuring position side of the stator windings relative to the axial direction of the rotor unit, while causing the arm link section to travel along the guide rail. The arm posture keeping mechanism is provided with a link wire and a spring, and maintains a straight arm posture of the leading end link assembly after projection from the guide rail.

Inspection apparatus for inspecting performance of structure by

A control apparatus for controlling a plane working robot comprise a running unit for running on a plane surface, a steering unit for steering the running unit in a predetermined direction, a working unit for performing predetermined plane working such as cleaning, and a detecting unit for detecting information about running direction and distance of the robot and an obstacle on the plane surface, thus permitting the working robot to take an optimum running path while avoiding an obstacle on the basis of sensor outputs from the detecting unit. This control apparatus comprises a working information setting element for setting a working area where the plane working is conducted, and for setting an optimum working running path within the set working area in accordance with a predetermined algorithm, and a working control element for controlling the running unit and the steering unit so that the running unit allows the robot to run along the working running path set by the working information setting element, and for controlling the working unit so that the robot conducts a predetermined work during running.

Control apparatus for plane working robot

Growing community of inventors

Tokyo, Japan

Sueyoshi Mizuno