Development of wireless power transfer systems

• Main Author: Mohammad Nazim Atan.
• Other Authors: Don Mahinda Vilathgamuwa
• Format: Final Year Project
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Power electronics
• Online Access: http://hdl.handle.net/10356/54521
• Institution: Nanyang Technological University

Wireless Inductive Power Transfer (IPT) incorporates wireless power transfer using a set of coils to induce current from one coil to another. The contactless power delivery is achievable through the magnetic field that is created from the ever-changing current flow in the primary coil. IPT is gaining popularity in the global market, mainly due to its high efficiency of about 80%-90% and the absence of wires for hazardous or inaccessible areas. A typical IPT system involves the use of two controllers in which the primary controller is accounted for the sending end of the power transmission while the secondary pick-up controller monitors the receiving end of the power transmission. This project will focus heavily on developing on a single controller which will be controlled at the primary side. The controller will effectively control the amount of power which will be transferred to the receiving side with regards to the load. In order to ensure voltage regulation, the controller will control the track current in the primary side by estimating both the mutual inductance and output voltage. Simulation results and the theoretical analysis are presented to validate the efficiency of the IPT system. An IPT system with only a single primary controller would definitely reduce the cost of the overall system due to the absence of another controller. It could also be proved to benefit real-time users due to its high efficiency and believed to be a hot prospect in the near future.