In order to regulate the output accurately, primary controller need to obtain the load voltage and current information via wireless communication or others in electric vehicle wireless charger. This paper proposed a novel control method via load detection technology. Firstly, through analyzing the current and voltage of primary coil, the equivalent input impedance of primary coil was calculated, and then derived the load detection equations to estimate the load information. Secondly, the control scheme was designed using PID strategy based on load information detected. Lastly, a simulation model was established to verify the proposed control method.
Abstract-Real-time communication system is widely used to smart grid. The real-time performance and reliability are compared between CAN bus and FlexRay bus in theory. Then a steer-by-wire system experimental platform, which using the FlexRay bus, is built to verify the analysis results. The test results show that FlexRay bus has strong real-time performance and high reliability and are more suitable for high-speed, large capacity, strong and highly reliable real-time field bus communication networks. FlexRay bus has a good application prospects in the future smart grid and real-time control network.
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