
Vertical Axis Wind Turbine with Variable Pitch Control Mechanism
Vertical Axis Wind Turbine
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The design, build and test of a Variable Pitch Control Mechanism for H-Rotor Vertical Axis Wind Turbines was performed. A helicopter cyclic control mechanism was adapted to be fitted on a test wind turbine and tested for a fixed tip speed ratio with and without pitch control, and at a fixed rotor speed. The test results show that using cyclic pitch variation at fixed tip speed ratios improves the self-starting capability of the turbine. A constant shaft speed can also be attained while operating under fluctuating wind speeds.