Mitsubishi Heavy Industries Limited

Hitachi, Ltd.

Kabushiki Kaisha Toshiba

Euros Entwicklungsgesellschaft Fur Windkraftanlagen Mbh

Yasutaka Kimura

Takeshi Fujita

Masahiro Watanabe

Keisuke Ota

Takao Kuroiwa

Eiji Kato

Tomoyuki Nakamura

Kentaro Shindo

Taichi Isogai

Kouji Esaki

Toshiyuki Sawa

Toshiyuki Hirano

Naoto Murata

Kazuumi Kondo

Mitsuo Tsurugai

Tairiku Adachi

Toshiyuki Fujikawa

Hyogo Takami

Dennis Nowak

An inspection method according to the present disclosure includes a step of mounting an ultrasonic probe, a step of mounting a pulser receiver, a step of causing the ultrasonic probe to transmit ultrasonic waves, a step of causing the ultrasonic probe to receive a reflected wave of the ultrasonic waves reflected by the wind turbine blade, a step of causing the pulser receiver to acquire reflected-wave data, a step of causing the pulser receiver to wirelessly transmit the reflected-wave data, a step of causing at least one of antennas to receive the wirelessly transmitted reflected-wave data, and a step of causing an information processing device electrically connected to the at least two antennas to perform information processing on the reflected-wave data.

Inspection method for wind turbine blade of wind power generating apparatus

A wind turbine blade is reinforced while suppressing possible stress concentration resulting from a load imposed on a blade root portion of the wind turbine blade in a flap direction. The wind turbine blade includes a blade main body extending from the blade root portion toward a blade tip portion and an FRP reinforcing layer formed so as to cover at least a part of the outer surface of the blade root portion of the blade main body. The FRP reinforcing layer includes a plurality of laminated fiber layers and a resin with which the plurality of fiber layers is impregnated. The FRP reinforcing layer is formed such that, in a cross section along a longitudinal direction of the blade main body, both ends of the plurality of laminated fiber layers in the longitudinal direction are tapered.

Wind turbine generator system, wind turbine blade, and reinforcing method for wind turbine blade

A lightning-resistance performance of a wind turbine blade is improved with a simple configuration or method. Provided is a wind turbine blade protection structure for protecting a wind turbine blade from lightning, including a protection layer including a conductive metal foil arranged so as to cover at least a part of a surface of the wind turbine blade. The protection layer includes an elongated portion extending in a blade longitudinal direction along a trailing edge of the wind turbine blade from a blade root of the wind turbine blade to a blade tip portion.

Wind turbine blade protection structure and method of forming the same

A method and device for operating a power system, and a rechargeable-battery management device that extracts maximum performance from rechargeable batteries and uses the batteries evenly while taking into consideration cost and the operation of the batteries are provided. According to the method for operating a power system provided with a plurality of rechargeable-battery devices and a plurality of electric generators, the amount of power that a rechargeable battery available during a scheduled time period on a scheduled date will be able to supply is determined, an economic-dispatch calculation including the determined amount of power that the aforementioned rechargeable battery will be able to supply is performed for the power system, and the rechargeable battery is used to supply power during the scheduled time period on the scheduled date.

Method and device for operating power system, and rechargeable-battery management device

Provided are a wind turbine blade, with which effective reinforcement against possible flexural deformation in a longitudinal direction is realized, and a reinforcing method for the wind turbine blade. The wind turbine blade includes a hollow blade main body having a cylindrical blade root portion and extending from the blade root portion along a blade length direction, and a reinforcing plate provided in contact with an inside surface of the blade root portion and formed of an elongated member having a dimension along the blade length direction that is larger than a dimension along a circumferential direction of the blade root portion.

Wind turbine blade and reinforcing method for wind turbine blade

A battery control apparatus of this invention is provided which comprises: a battery installed on a feeder of a utility distribution system; batteries installed between pole-mounted transformers and branch points of the distribution lines; a communication network to transmit measurement data measured by meters; a battery control quantity calculation unit to determine battery control quantities from the measurement data acquired from the communication network; a load data collection unit to collect load data representing a combination of power consumption by a plurality of loads and generated power of distributed power generations; a frequency conversion unit to perform a frequency analysis on the load data; an intermediate-cycle component extraction unit to extract intermediate-cycle components; a battery control quantity calculation unit to determine battery control quantities from the extracted intermediate-cycle components; and a battery control command transmission unit to transmit the calculated control quantities to the batteries.

Method and apparatus for control battery and specification determining method of battery

Growing community of inventors

Tokyo, Japan

Yasutaka Kimura