Dual-Frequency Output of Wireless Power Transfer System with Single Inverter Using Improved Differential Evolution Algorithm

Jie Wu, Lizhong Bie, Nan Jin, Leilei Guo, Jitao Zhang, Jiagui Tao and Václav Snášel
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Jie Wu: School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
Lizhong Bie: School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
Nan Jin: School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
Leilei Guo: School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
Jitao Zhang: School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
Jiagui Tao: State Grid of Jiangsu Electric Power Co., Ltd., Nanjing 210024, China
Václav Snášel: Faculty of Electrical Engineering and Computer Science, VŠB-Technical University of Ostrava, 70032 Poruba-Ostrava, Czech Republic

Energies, 2020, vol. 13, issue 9, 1-15

Abstract: In wireless charging devices, a transmitter that applies a single inverter to output dual-frequency can effectively solve the charging incompatibility problem caused by different wireless charging standards and reduce the equipment volume. However, it is very difficult to solve the switching angle of the modulated dual-frequency waveform, which involves non-linear high-dimensional multi-objective optimization with multiple constraints. In this paper, an improved differential evolution (DE) algorithm is proposed to solve the transcendental equations of switching angle trains of dual-frequency programmed harmonic modulation (PHM) waveform. The proposed algorithm maintains diversity while preserving the elites and improves the convergence speed of the solution. The advantage of the proposed algorithm was verified by comparing with non-dominated sorting genetic algorithm II (NSGA II) and multi-objective particle swarm optimization (MOPSO). The simulation and experimental results validate that the proposed method can output dual-frequency with a single inverter for wireless power transfer (WPT).

Keywords: differential evolution; dual-frequency; programmed harmonic modulation; single inverter; wireless power transfer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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