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Combined Renewable Energy Utilization Lab
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A lab that researches technologies to expand the deployment of wind power and other renewable energy.
AboutAbout the lab
Taking on the expansion of wind power and more through technology
The Combined Renewable Energy Utilization Lab researches technologies for increasing the deployment of renewable energy that uses fluid dynamics, starting with wind power.
Using fluid dynamics, mechanical dynamics, control engineering, electrical engineering, mechatronics, and more, the lab conducts research and development on technologies for larger scale, lower cost, and higher performance.
For commercial wind turbines and floating offshore wind turbines, the lab carries out modeling, design, control, and evaluation.
At the graduate level, the lab accepts students as a cooperating laboratory of the Department of Atmospheric and Oceanic Environmental Systems, Interdisciplinary Graduate School of Engineering Sciences.
Key terms
- Floating offshore wind turbine
- A facility with a wind turbine mounted on a float placed on the sea. The lab examines its performance through water tank tests and load calculations.
- Multi-rotor wind turbine
- A wind turbine whose single system has multiple rotating units (rotors) with blades.
- Individual pitch control
- Control that adjusts the angle of each wind turbine blade separately to reduce the loads on the blades.
ResearchResearch themes
The lab aims to expand the deployment of renewable energy that uses fluid dynamics, such as wind power. Targeting wind turbines and floating offshore wind turbines, it researches technologies such as design, modeling, control, and load analysis.
*Illustrative imageDesign and modeling of commercial wind turbines
For commercial wind turbines, the lab works on basic design, modeling, control system design, and load definition. For multi-rotor wind turbines, which have multiple rotors, it is developing analysis methods.
*Illustrative imageDesign and evaluation of floating offshore wind turbines
The lab works on the basic design, modeling, control system design, and evaluation of floating offshore wind turbines. It also conducts water tank tests, calculation of characteristics and loads, and development of control and protection systems.
*Illustrative imageAerodynamics of downwind rotors
For downwind rotors, the lab conducts simulations and wind tunnel tests from an aerodynamic perspective. It also develops a tower shadow model.
*Illustrative imageControl to reduce wind turbine loads
The lab studies methods of reducing loads through modeling and control of drivetrain vibration, variable-speed pitch control, and individual pitch control. It also covers methods of setting control parameters, sensorless control technology, and load reduction during standby in storms.
MembersFaculty
The members of the lab are faculty members, academic researchers, collaborating researchers, technical officers, technical staff, administrative assistants, and doctoral and master's students.As of 2021
- ProfessorShigeo Yoshida
- Assistant ProfessorYingyi Liu
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Wind turbine at the Fraisthorpe Wind Farm - geograph.org.uk - 5785135” Mat Fascione / CC BY-SA 2.0 (cropped)
- Design and modeling of commercial wind turbines: “Roscoe Wind Farm in West Texas” Matthew T Rader / CC BY-SA 4.0 (cropped)
- Design and evaluation of floating offshore wind turbines: “Blue H Technologies - World's First Floating Wind Turbine” Green Storm 7 / CC BY-SA 4.0 (cropped)
- Aerodynamics of downwind rotors: “WindTurbine Rotor Winglets unmounted” TraceyR / CC BY-SA 3.0 (cropped)
- Control to reduce wind turbine loads: “Interior of the hub of Turbine No 3 - geograph.org.uk - 754033” Paul Anderson / CC BY-SA 2.0 (cropped)
- Related lab (Next-Generation Renewable Energy Technology Lab): “Eolink Floating Wind Turbine” marc guyot / CC BY-SA 4.0 (cropped)
- Related lab (Turbulence Data Analysis Lab): “Openstax college-physics 22.26b tokamak-schematic” OpenStax / CC BY 4.0 (cropped)
- Related lab (Advanced Offshore Wind Energy Utilization Lab): “1kW wind-lens turbine at Miyagi, Japan” Tomon7 / CC BY-SA 3.0 (cropped)
- Related lab (Marine Renewable Energy Engineering Lab): “WaveRoller wave energy farm installation in Peniche, Portugal 2012” AW-Energy Oy / CC BY 3.0 (cropped)
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