3.8 Proceedings Paper

Parameter Optimization of LCC-S Type WPT System Based on Improved NSGA-II

Publisher

IEEE

Keywords

WPT; nonlinear programming modeling; NSGA-II; parameter optimization

Funding

  1. National Natural Science Foundation of China [61573074]

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The Wireless power transfer (WPT) system is a typical loosely coupled, multi-parameter, multi-objective, and multi-constrained nonlinear system. Considering the constraints of system frequency bifurcation, soft switching control, actual output target, and device parameter ratings, this paper establish the multi-objective and multi-constrained non-linear programming model based on the time-domain differential equation method. Then optimizes system parameters with the improved NSGA-II genetic algorithm to maximize transmission power and efficiency. Simulation results show that the improved NSGA-II genetic algorithm can quickly find the global optimal parameters, and the obtained parameters make the system work at zero phase angle frequency, no bifurcation phenomenon, and maximize the transmission power and efficiency.

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