Mitsubishi Heavy Industries Limited

Canon Kabushiki Kaisha

Mhi Vestas Offshore Wind A/s

Yoshiyuki Hayashi

Masaaki Shibata

Kazunari Ide

Tsuyoshi Wakasa

Toyoaki Furukawa

Yuuji Yatomi

Eiji Kato

Mitsuya Baba

Hisao Miyake

Yoshinari Teramoto

Koshi Hayakawa

Junji Iwata

Yukio Yamashita

Kazuhisa Tsutsumi

Satoshi Iwasaki

Wakako Ariki

Hideyasu Fujioka

Kazuhiro Saito

Akihiro Nakamura

Taro Kato

Tomohiro Numajiri

Yoshihiko Hayashi

Yu Maehashi

Kazuhiro Morimoto

Hideaki Ishino

Takao Kuroiwa

Kai Karikomi

Yoshihiko Fukumoto

Kenji Togo

Shigeto Hirai

Takumi Nakashima

Masanori Kudo

Seita Seki

Taketo Mizoue

Yasuto Fujino

Tsuyoshi Mitsubishi Heavy Industries Ltd Wakasa

Masaaki Mitsubishi Heavy Industries Ltd Shibata

Kazunari Mitsubishi Heavy Industries Ltd Ide

The distance between an upper end of a light-shielding portion and a photoelectric conversion layer is longer than the distance between the lower surface of a light-shielding film and the photoelectric conversion layer. The distance between a lower end of the light-shielding portion and the photoelectric conversion layer is shorter than the distance between the lower surface of the light-shielding film and the photoelectric conversion layer. In a plane including the light-shielding film and the light-shielding portion, an opening defined by the light-shielding portion and a gap between the light-shielding portion and the light-shielding film are provided, and the width of the gap is smaller than the width of the opening.

Photoelectric conversion apparatus and equipment

A photoelectric conversion apparatus includes a first substrate including a plurality of avalanche photodiodes, a second substrate including a plurality of pixel circuits, and a third substrate including a signal processing circuit, wherein the second substrate and the third substrate are stacked in such a manner that a third wiring structure is disposed between two semiconductor layers included in the second substrate and the third substrate, with a first through wire penetrating through the semiconductor layer included in the third substrate is disposed.

Photoelectric conversion apparatus, photoelectric conversion system, and movable body

An apparatus includes a layer that has a light incident surface and includes elements, and a wiring structure. Each of the elements includes a photodiode. The photodiode includes first and second regions of first and second conductivity types. A voltage is supplied to the second region through a second-conductivity-type region. The wiring structure includes a first wiring positioned closest to the layer among wirings to supply the voltage to the second-conductivity-type region, a plug connecting the first wiring and the second-conductivity-type region, and a second wiring supplying a voltage to the first region. The second wiring covers the first region when viewed in plan, and a distance between the second wiring and the layer is shorter than a distance between the first wiring and the layer.

Photoelectric conversion apparatus and optical detection system

A method of operating a wind turbine power generating apparatus including a wind turbine rotor having a wind turbine blade includes: a step of obtaining a load applied to the wind turbine blade; and a step of selecting an operation mode of the wind turbine power generating apparatus on the basis of the load, from among a plurality of operation modes including a normal operation mode and at least one load-suppressing operation mode in which the load applied to the wind turbine blade is smaller than in the normal operation mode.

Wind turbine power generating apparatus and method of operating the same

A method of operating a wind turbine power generating apparatus includes a step of obtaining a wind direction of a wind; a step of obtaining at least one of a wind velocity of the wind or an index of turbulence degree of the wind velocity; and a step of selecting an operation mode of the wind turbine power generating apparatus from among a plurality of operation modes including a normal operation mode and at least one load-suppressing operation mode in which a load applied to a wind turbine blade is smaller than in the normal operation mode, on the basis of whether the at least one of the wind velocity or the index of turbulence degree is at least a threshold. The threshold of the at least one of the wind velocity or the index of turbulence degree is variable in accordance with the wind direction.

A method of controlling a floating-body wind turbine power generating apparatus including a wind turbine generator disposed on a floating body includes a pitch-angle increasing step of increasing a pitch angle of a blade of the wind turbine generator when the wind turbine generator is stopped, so that an aerodynamic braking force is applied to a rotor of the wind turbine generator. In the pitch-angle increasing step, a first change rate of the pitch angle of the blade in a first period during which the wind turbine generator is in an inclining motion toward an upwind side from a vertical direction due to sway of the floating body, is smaller than a second change rate of the pitch angle of the blade in a second period during which the wind turbine generator is in an inclining motion toward a downwind side from the vertical direction due to the sway of the floating body.

Method and device for controlling floating body wind turbine power generating apparatus, and floating body wind turbine power generating apparatus

A designing method of a wind turbine rotor includes: providing operation environment data indicative of an operation environment of a wind turbine generator including the wind turbine rotor and design data of the wind turbine blade; calculating a position of a center of mass of the wind turbine blade in each position in a lengthwise direction of the wind turbine blade in the operation environment from the operation environment data and the design data; and calculating an evaluation value which is a value depending on an integral value obtained by integrating a product of the calculated position of the center of mass of the blade and a mass per unit length at each position in a lengthwise direction of the wind turbine blade from a blade root portion of the wind turbine blade to a blade tip end of the same.

Wind turbine rotor designing method, wind turbine rotor design support device, wind turbine rotor design support program and wind turbine rotor

An object is to suppress reduction of energy production as much as possible while ensuring an expected lifetime. There is provided a device of adjusting a curtailment strategy for a wind turbine, the device including: a fatigue equivalent load calculation unit that calculates a fatigue equivalent load for evaluating a fatigue damage of the wind turbine in a predetermined time period by using load data of the wind turbine; and a setting value update unit that compares the fatigue equivalent load with a reference load determined by an expected lifetime of the wind turbine, and, when a difference between the fatigue equivalent load and the reference load exceeds a predetermined threshold value, updates the condition setting value for the curtailment that is currently employed according to the difference.

Device and method of adjusting curtailment strategy for wind turbine, and program

A wind turbine generator, an active damping method thereof, and a windmill tower in which vibrations of the wind turbine generator itself or the windmill tower can be reduced at low cost are provided. The acceleration is detected with an accelerometer attached to the nacelle. In an active damping unit, a pitch angle of windmill blades for generating a thrust is calculated on the basis of the acceleration, and the pitch angle is output as a blade-pitch-angle command &#x3b4;&#x3b8;* for damping. In a pitch-angle control unit, a pitch angle of the windmill blades for controlling the output, and the pitch angle is output as a blade-pitch-angle command &#x3b8;* for output control. The blade-pitch-angle command &#x3b4;&#x3b8;* for damping is combined with the blade-pitch-angle command &#x3b8;* for output control using a subtracter. The pitch angle of the windmill blades is controlled on the basis of the resulting blade-pitch-angle command after combining.

Wind turbine generator, active damping method thereof, and windmill tower

A device includes a plurality of photoelectric conversion regions, an interlayer insulating film arranged on the plurality of photoelectric conversion regions, a protective insulating film that is arranged in contact with the interlayer insulating film and has a refractive index different from that of the interlayer insulating film, recesses arranged in a light-receiving surface of each of the plurality of photoelectric conversion regions, and embedded regions embedded in the recesses. When a wavelength of incident light to each of the plurality of photoelectric conversion regions is denoted by &#x3bb; and a refractive index of the embedded regions is denoted by n, a depth d of the recesses is represented by an expression d&#x2267;&#x3bb;/4n.

Photoelectric conversion device having embedded recess regions arranged in light-receiving surface

A wind turbine generator is provided with: a nacelle mounting a wind turbine rotor; a yaw drive device generating drive force for causing yaw turning of the nacelle; a brake mechanism generating braking force for braking the turning of the nacelle; a control system controlling the yaw drive device and the brake mechanism; and a wind speed measurement device measuring wind speed. When detecting occurrence of a high wind speed state based on the wind speed while the nacelle is turned by the yaw drive device, the control device provides braking force for the nacelle by using the brake mechanism in response to the detection of the occurrence of the high wind speed state.

Wind turbine generator and nacelle turning method

A wind turbine generator, an active damping method thereof, and a windmill tower in which vibrations of the wind turbine generator itself or the windmill tower can be reduced at low cost are provided. The acceleration due to vibrations of a nacelle is detected with an accelerometer attached to the nacelle. In an active damping unit, a pitch angle of windmill blades for generating a thrust on the windmill blades so as to cancel out the vibrations of the nacelle is calculated on the basis of the acceleration, and the pitch angle is output as a blade-pitch-angle command &#x3b4;&#x3b8;* for damping. On the other hand, in a pitch-angle control unit, a pitch angle of the windmill blades for controlling the output to be a predetermined value is calculated, and the pitch angle is output as a blade-pitch-angle command &#x3b8;* for output control. The blade-pitch-angle command &#x3b4;&#x3b8;* for damping is combined with the blade-pitch-angle command &#x3b8;* for output control using a subtracter. The pitch angle of the windmill blades is controlled on the basis of the resulting blade-pitch-angle command after combining.

An apparatus and a method for operating a wind turbine capable of preventing the occurrence of damage of the blades by evading excessive irregular loads from acting on the blades in the slanting direction in the event of power failure when strong wind blows, are provided. The operating method of a wind turbine having a supportstanding erect on the ground or on a ship; a wind turbineA with a nacellesupported for swivel movement in a horizontal plane, a rotorhaving a plurality of bladesand being rotated by wind force acting on the blades, and a generator being contained in the nacelle and connected to the rotor; a rotation driving mechanismfor swiveling the wind turbineA; and a brake device for controlling the rotation of the wind turbine comprises the step of:

Wind turbine operating apparatus and operating method

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Nagasaki, Japan

Yoshiyuki Hayashi