Abstract
In this work, a smart grid system consisting of solar panels and a battery is presented for an electric or hybrid vehicle. For the integration of green power in our system, solar panels are used to charge the accumulator while the power exchange between the vehicle and the grid is realized by power wireless transfer. This paper presents the design, control, and tests of the wireless power transmission, using the basics of magnetic resonant coupling. Numerical data of the power transfer efficiency of the receiver are presented. Graphs are given to show the comparison of power and efficiency with the distance of the coils. Magnetic and electric models of the system are used to analyze the problem. Using the analysis outcome, a compromise is made to come to an acceptable design achieving both requirements. In particular, appropriate design parameters and resonance frequency are obtained. The analytical results are confirmed by 3D Finite Element Method (FEM) analysis.
Highlights
A renewable energy Hybrid System (HS) can be applied with grid connection while the owners may be allowed to sell the excessive power to the electric energy provider [1]
An oscillation circuit is connected with a Transmitter Coil (TC) which is in turn resonant inductively coupled to a load Receiver Coil (RC)
A radio frequency oscillating signal passed through the TC generating an oscillating magnetic field through the inductance of the TC which is tuned at the same frequency by the inductance of the coil and a resonating capacitor C
Summary
A renewable energy Hybrid System (HS) can be applied with grid connection while the owners may be allowed to sell the excessive power to the electric energy provider [1]. By using WPT, power can be transmitted using inductive coupling for short range transmissions, resonant induction for mid-range, and electromagnetic wave power transfer. By using this technology, it is possible to supply power to places that is hard to do with the utilization of conventional wires [5]. The most common wireless power transfer technologies are the electromagnetic induction and the microwave power transfer [6, 7]. Wireless power transfer can be done via electric field coupling, which provides an inductively loaded electrical dipole that is an open capacitor or dielectric disk [10]. Extraneous objects may provide a relatively strong influence on electric field coupling
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