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Information Technology Journal

Year: 2014 | Volume: 13 | Issue: 4 | Page No.: 789-794
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Authors

Zhijun Jian

Zhihui Wang

Ning Zhang

Siqing Fu

Bo Liu

Xin Hu

Keywords

Research Article

An Approach of Input Power Control in ICPT System with Uncertainty Load

Zhijun Jian, Zhihui Wang, Ning Zhang, Siqing Fu, Bo Liu and Xin Hu
In the voltage-fed Inductively Coupled Power Transfer (ICPT) system, input current increased when load become lighter especially no-load which led to system unstable. A method of frequency adjustment without adding additional links was presented which could realize the control of input power. The mathematical relationship between the input power and system operating frequency, load resistance, input voltage in the voltage-fed ICPT system was built based on mutual inductance theory. In order to improve the rapidity and accuracy of the control method, the neural network control strategy which included control network with three layers was added in the proposed method. Practical experiment illustrated that the method could make the system with good robustness when load changes in large scale. In instance, as the load resistance varied from 20-50 Ω, the input current returned to the reference value within a short time which verified that the proposed control approach was effective for ICPT system.
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