Design and implementation of removable and closed-shape dual ring pickup for contactless linear inductive power track system

This paper presents an approach to design the pickup of contactless linear inductive power track system for supplying power to electric transport vehicles in the materials handling applications. Removable and closed-shape dual ring pickup which has lower total equivalent reluctance is proposed to improve the power transfer efficiency of existing track system due to the magnetic flux path of core does match the magnetic field pattern of primary track cable. According to the calculation of reluctance, a magnetic equivalent model of proposed dual ring-shaped pickup is established for analyzing the relevance of geometric specifications to the coupling performance of pickup. Using these results of theoretical analysis, a practical prototype of the contactless linear inductive power track with removable and closed-shape dual ring pickup is implemented in laboratory. The fundamental experiments will be carried out and the experimental data are demonstrated to verify the capability and feasibility of this system.