Mitsubishi Heavy Industries Limited

Vestas Wind Systems A/s

I.r.c.a. S.p.a. Industria Resistenze Corazzate E Affini

Mhi Vestas Offshore Wind A/s

Global Lightning Protection Services A/s

Euros Entwicklungsgesellschaft Fur Windkraftanlagen Mbh

Hideyasu Fujioka

Masaaki Shibata

Kenji Sato

Yoshiyuki Hayashi

Takao Kuroiwa

Akihiro Nakamura

Yoshihiko Hayashi

Federico Zoppas

Takuro Kameda

Kohei Kawazoe

Kouji Esaki

Kazuhiro Miura

Hidekazu Ichinose

Jens Alwart

Andreas Cremer

Syogo Furukawa

Nils Feberwee

Filippo Spagnolli

A wind turbine monitoring device for monitoring a wind turbine including a lightning sensor for detecting a lightning strike on a wind turbine blade includes a lightning parameter acquisition part configured to acquire at least one lightning parameter based on an output of the lightning sensor, a lightning level determination part configured to determine a level of the lightning strike based on the at least one lightning parameter acquired by the lightning parameter acquisition part; and an inspection control part configured to judge whether it is necessary to automatically inspect the wind turbine blade by at least one inspection unit for inspecting the wind turbine blade, according the level of the lightning strike determined by the lightning level determination part.

Wind turbine monitoring device, wind turbine system, and wind turbine monitoring method

A wind turbine blade having a lightning protection function includes an outer shell, a spar arranged in a space inside the outer shell, a spar cap which is formed by a carbon-fiber plastic laminated member disposed on a blade root side and a glass-fiber plastic laminated member disposed on a blade tip side that are connected together, the spar cap supporting the spar to the outer shell, and a lightning protection unit. The lightning protection unit includes a receptor for receiving lightning which is provided in the outer shell on a side where the glass-fiber plastic laminated member is arranged, a down conductor which directs lightning current received by the receptor into the ground or the water, and a conductive metal member which covers the outer shell on a side where the carbon fiber plastic laminated member is arranged.

Wind turbine blade

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

A load is based calibrate on data collected under wide observation conditions and promptly calibrate loads of a plurality of wind turbine blades. A load measuring apparatus is applied to a wind turbine in which a pitch angle of a wind turbine blade is variable. The apparatus includes a sensor for obtaining a distortion of the wind turbine blade; a load calculating unit having a function expressing a relation between the distortion of the wind turbine blade and a load on the wind turbine blade, for obtaining the load on the wind turbine blade by applying to the function the distortion based on measurement data of the sensor; and a calibration unit for calibrating the function based on the measurement data of the sensor obtained in a pitch angle range and a rotational speed range of the wind turbine blade in which a variation between maximum and minimum aerodynamic torques is equal to or less than a predetermined value.

Load measuring apparatus, method, and program

Growing community of inventors

Tokyo, Japan

Hideyasu Fujioka