ABSTRACT This article proposes a simple and efficient non‐resonant wireless charging system using a coupler with axial and rotational anti‐misalignment capabilities. It is optimized using a target‐based multi‐objective genetic algorithm (T‐NSGAII). First, the output characteristics of the proposed non‐resonant wireless charging system are analyzed, and the requirements for a coupler to achieve a specific current and enhance anti‐misalignment performance are presented. Second, the working flow of the T‐NSGAII is examined, and a coupler with anti‐misalignment capabilities in both axial and rotational directions is designed. Third, the coupler parameters are optimized to meet the requirements using the T‐NSGAII method. The experimental results show that the system can achieve constant current output over a reasonable vertical misalignment range and maintain transmission efficiency above 80% under full‐circle rotation at a 30 mm vertical misalignment. The maximum output current fluctuation within the range is about 4.9%.
Chen et al. (2026) studied this question.