Research On Efficiency Optimization Of Three Coil ICPT System Based On Electromagnetic Coupling Mechanism

Because of its advantages of safety, reliability and convenience, the radio transmission technology is being paid more and more attention and recognition by the society. Wireless power transmission technology can not only realize power transmission in the near distance, also can be in the distance, to achieve energy efficient transmission Time magazine named it one of the most influential inventions in the world in 2014.As for the 3-coil inductively coupled power transfer system(ICPT), in the given frequency, the mutual inductance between relay and primary coils, the mutual inductance between relay and load coils, and the load are the main factors that affect the efficiency of power transmission. The mutual inductance between coils and constraint relationship of coil location are considered, and then an optimization method of the relay coil location with the arbitrarily given primary and load coils is proposed. With the power transfer efficiency as the optimization objective, this method considers the mutual inductance of the 3-coil, load and other parameters, which solves the optimal location problem for relay coil and show the optimal location of the relay coil is closely related to the load with computer aided design.Analysis of the spatial characteristics of the three coil system of ICPT electromagnetic coupling mechanism, space transformer based on the theory, modeling and analysis of the mutual inductance coupling coil coupling mechanism in the. Get the exact mathematical expressions that mutual inductance coupling coil and coil position corresponding to the one. Through the circuit principle of the coupled transformer coil and the system efficiency, which can be established through computer aided system efficiency and coil position one to one corresponding relation.A parameter optimization design method of three coil ICPT system based on electromagnetic coupling mechanism is proposed. The establishment of data fitting, with special to the general idea, establish mutual inductance, efficiency and location of the explicit function, and then through the constraints of the function itself, and make the analysis. According to the constraints of the system itself, establish the relationship between the objective function and the position constraints. With the genetic algorithm to optimize the characteristics of fast convergence of multi objective function, the optimal position of the objective function is obtained.The establishment of the simulation platform of three coil ICPT of the electromagnetic coupling mechanism, analysis of simulation results, the results based on theoretical analysis and experimental verifies that the electromagnetic coupling mechanism of three coil ICPT efficiency of the feasibility of the optimization scheme...