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[5, 2015] 

Journal of Electrical Engineering, Vol 66, 5 (2015) 264-269 DOI: 10.1515/jee-2015-0043

MODELING, SIMULATION, HARDWARE IMPLEMENTATION OF A NOVEL VARIABLE PITCH CONTROL FOR H-TYPE VERTICAL AXIS WIND TURBINE

Liqun Liu – Chunxia Liu – Xuyang Zheng

   It is well known that the fixed pitch vertical axis wind turbine (FP-VAWT) has some disadvantages such as the low start-up torque and inefficient output efficiency. In this paper, the variable pitch vertical axis wind turbine (VP-VAWT) is analyzed to improve the output characteristics of FP-VAWT by discussing the force of the six blade H type vertical axis wind turbine (VAWT) under the stationary and rotating conditions using built the H-type VAWT model. First, the force of single blade at variable pitch and fixed pitch is analyzed, respectively. Then, the resultant force of six blades at different pitch is gained. Finally, a variable pitch control method based on a six blade H type VP-VAWT is proposed, moreover, the technical analysis and simulation results validate that the variable pitch method can improve the start-up torque of VAWT, and increase the utilization efficiency of wind energy, and reduce the blade oscillation, as comparable with that of FP-VAWT.

Keywords: H-type, vertical axis wind turbine, force analysis, modeling, simulation, variable pitch


[full-paper]


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