Abstract
This paper describes a synthesis of a spatial parallel link mechanism for heliostat which drives a reflection mirror to track moving sun and to reflect sun light to concentrator at the top of the central tower in thermosolar power plant. By considering dustproof and maintenance performances, 3-RUU mechanism is adopted with type synthesis. Inverse kinematics is then achieved by solving a system of nonlinear equations with 18 variables. Based on the inverse kinematics, dimensions of the mechanism are determined so as to maximize its workspace on three posture angles. Several simulations reveal that the synthesized mechanism can track sun almost in whole year.
