Research on Pitch Control Strategies of Horizontal Axis Tidal Current Turbine

Based on blade element momentum theory and generator characteristic test, a dynamic simulation model of 150 kW horizontal-axis tidal current turbine was established. The matching of the dynamic characteristics between the turbine and generator under various current velocities is studied, and the inf...

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Bibliographic Details
Published in:China ocean engineering 2020-04, Vol.34 (2), p.223-231
Main Authors: Wang, Bing-zhen, Hu, Teng-yan, Guo, Yi, Zhang, Yuan-fei
Format: Article
Language:English
Subjects:
Coastal Sciences
Computer simulation
Control systems design
Dynamic characteristics
Engineering
Fluid- and Aerodynamics
High current
Low currents
Marine & Freshwater Sciences
Matching
Maximum power
Momentum
Momentum theory
Numerical and Computational Physics
Ocean currents
Oceanography
Offshore Engineering
Pitch (inclination)
Simulation
Tidal currents
Turbine engines
Turbines
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Summary:Based on blade element momentum theory and generator characteristic test, a dynamic simulation model of 150 kW horizontal-axis tidal current turbine was established. The matching of the dynamic characteristics between the turbine and generator under various current velocities is studied, and the influence of the pitch angle on the matching is analyzed. For the problem of maximum power output in case of low current speed and limiting power in high current speed, the relation between optimal pitch angle and output power is analyzed. On the basis of dynamic characteristic analysis, the variable pitch control strategy is developed. The performance of the turbine under various tidal conditions is simulated. The research results show that the designed controller enables the turbine to operate efficiently under the condition of low current speed, and achieve the goal of limited power at high current speed.
ISSN:0890-5487
2191-8945
DOI:10.1007/s13344-020-0021-9