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

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 o...

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Bibliographic Details
Published inEnergies (Basel) Vol. 13; no. 9; p. 2209
Main Authors Wu, Jie, Bie, Lizhong, Jin, Nan, Guo, Leilei, Zhang, Jitao, Tao, Jiagui, Snášel, Václav
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2020
Subjects
Algorithms
Classification
Computer simulation
Differential equations
differential evolution
dual-frequency
Evolutionary algorithms
Evolutionary computation
Genetic algorithms
Incompatibility
Inverters
Medical device industry
Medical equipment
Methods
Multiple objective analysis
Numerical analysis
Optimization
Optimization algorithms
Power supply
programmed harmonic modulation
single inverter
Sorting algorithms
Waveforms
wireless power transfer
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Summary: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).
ISSN:1996-1073
1996-1073
DOI:10.3390/en13092209