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Performance Evaluation of Wireless Power Transfer System for Electric Vehicles

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "E: Electric Vehicles".

Deadline for manuscript submissions: 15 June 2026 | Viewed by 2089

Special Issue Editors

School of Automation, Chongqing University, Chongqing 400044, China
Interests: wireless power transfer; power electronics
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Guest Editor
Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong, China
Interests: wireless power transfer; applied electromagnetics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the accelerating adoption of electric vehicles (EVs) worldwide, wireless power transfer (WPT) emerges as a pivotal technology to enable automated, safe, and convenient charging. Despite significant advances in resonant architectures and power electronics, comprehensive performance evaluation under real-world conditions is still lacking. Critical factors such as misalignment tolerance, varying environmental conditions, thermal effects, electromagnetic compatibility, and grid-to-vehicle interface dynamics must be systematically quantified to support system optimization, standardization, and regulatory certification.

This Special Issue, “Performance Evaluation of Wireless Power Transfer System for Electric Vehicles”, invites contributions that address theoretical analyses, experimental methods, and practical case studies for assessing WPT system performance. The Issue will facilitate knowledge exchange between researchers, industry practitioners, and standardization bodies.

Topics of interest include, but are not limited to, the following:

  • Efficiency analysis and improvement of wireless power transfer systems;
  • Standardized test rigs, measurement protocols, and performance metrics;
  • Effects of coupler design, shielding, and materials on coupling robustness;
  • Thermal management, mechanical integration, and electromagnetic compatibility;
  • Dynamic control strategies in wireless power transfer;
  • Lifecycle assessment and sustainability considerations;
  • Simultaneous power–data transfer systems for electric vehicles.

We look forward to your innovative contributions that will advance the performance benchmarks for EV WPT systems.

Dr. Xiaofei Li
Dr. Heshou Wang
Guest Editors

Manuscript Submission Information

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Keywords

  • wireless power transfer
  • power electronics
  • electric vehicles
  • performance evaluation

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Published Papers (2 papers)

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Research

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42 pages, 1374 KB  
Article
Sensitivity Analysis and Design of Dynamic Inductive Power Transfer Coil Geometries for Two-Wheeled Electric Vehicles Under Misalignments
by Mário Loureiro, R. M. Monteiro Pereira and Adelino J. C. Pereira
Energies 2026, 19(6), 1456; https://doi.org/10.3390/en19061456 - 13 Mar 2026
Viewed by 544
Abstract
This work investigates the geometric design and optimisation of a dynamic inductive power transfer coupler for two-wheeled electric vehicles under misalignment and magnetic-field exposure constraints. A computational three-dimensional finite-element model of a shielded rectangular coupler is developed to characterise coupling coefficients and magnetic [...] Read more.
This work investigates the geometric design and optimisation of a dynamic inductive power transfer coupler for two-wheeled electric vehicles under misalignment and magnetic-field exposure constraints. A computational three-dimensional finite-element model of a shielded rectangular coupler is developed to characterise coupling coefficients and magnetic flux density levels on control planes along the longitudinal travel range and under lateral and angular misalignments. Two simulation datasets are generated: one varying only geometric parameters at a nominal position for surrogate construction and global sensitivity analysis, and a second jointly sampling geometry, the travel range and misalignments for optimisation. Sparse Polynomial Chaos Expansions and Canonical Low-Rank Approximation surrogates are built to quantify Sobol’ indices, revealing that a small subset of primary-side geometric variables dominates both coupling efficiency and magnetic field levels. Random forest regressors are then trained on the extended dataset and embedded in the Non-dominated Sorting Genetic Algorithm II to solve a multi-objective optimisation problem that maximises worst-case coupling, improves robustness to misalignment, and enforces magnetic-field leakage limits. Optimal designs were obtained, and a subset was selected for re-evaluation using the finite-element method. The results confirm that the proposed surrogate-assisted framework yields coupler geometries with enhanced coupling and reduced magnetic field leakage while respecting the mechanical constraints for the electric motorcycle system. Full article
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Review

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24 pages, 3801 KB  
Review
Review of High-Misalignment Tolerance Techniques in Wireless Power Transfer Systems
by Cheng Wang, Wei Ren, Yang Chen and Xiaofei Li
Energies 2026, 19(3), 713; https://doi.org/10.3390/en19030713 - 29 Jan 2026
Cited by 1 | Viewed by 1245
Abstract
Wireless power transfer (WPT) technology, leveraging the unique advantage of contactless power supply, has been recognized as a core power supply solution for mobile devices such as automated guided vehicles (AGVs) and electric vehicles (EVs). However, its transmission performance is highly susceptible to [...] Read more.
Wireless power transfer (WPT) technology, leveraging the unique advantage of contactless power supply, has been recognized as a core power supply solution for mobile devices such as automated guided vehicles (AGVs) and electric vehicles (EVs). However, its transmission performance is highly susceptible to lateral offset, longitudinal misalignment, and angular deflection of the coils, resulting in a sharp decline in efficiency and unstable output. This has become a key bottleneck restricting the engineering application of the technology. This paper presents a comprehensive review focusing on the misalignment tolerance technologies for WPT systems. First, taking the LCC-S/LCC topology as an example, the influence of coil misalignment on the system output performance is analyzed, and various misalignment tolerance methods are enumerated. Subsequently, the basic principles and main research achievements of four categories of misalignment tolerance technologies, namely coupling structure optimization, compensation topology optimization, control strategies, and alignment guidance technology, are systematically summarized, with their limitations identified. Finally, the future research directions of misalignment tolerance technologies are discussed. Full article
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