Design Procedure Based on Maximum Efficiency for Wireless Power Transfer Battery Chargers with Lightweight Vehicle Assembly

Article Engineering, Electrical & Electronic

Battery State-of-Health Estimation Based on Incremental Capacity Analysis Method: Synthesizing From Cell-Level Test to Real-World Application

Chengqi She et al.

Summary: This article proposes an enabling SOH estimation scheme based on the ICA method for real-world EVs. The effectiveness of the proposed method is verified using the datasets collected from both well-controlled laboratory tests and daily operating EVs. The results show that the proposed method can realize an accurate pack-level SOH estimation both for laboratory battery packs and real-world EVs.

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS (2023)

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Article Engineering, Electrical & Electronic

A Data-Driven Method for Battery Charging Capacity Abnormality Diagnosis in Electric Vehicle Applications

Zhenpo Wang et al.

Summary: In this article, a data-driven method based on massive real-world EV operating data is proposed for diagnosing battery charging capacity abnormalities. By utilizing multiple input parameters and a tree-based prediction model for training, along with a statistical method for abnormality diagnosis, the proposed method demonstrates the highest prediction accuracy.

IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION (2022)

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Article Energy & Fuels

Optimal Rotating Receiver Angles Estimation for Multicoil Dynamic Wireless Power Transfer

Bohdan Pakhaliuk et al.

Summary: This study proposed a novel approach to dynamic wireless charging using a rotating receiver coil, focusing on increasing coupling coefficient and power transfer stability by following the flux of transmitting coils. By optimizing the trajectory of the rotating receiver's angular velocity, the study achieved the highest possible coupling as simulated by a state space model with three transmitters. The comprehensive analysis showed a 40% increase in track space usage with the proposed wireless power transmission approach.

ENERGIES (2021)

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Article Energy & Fuels

Estimation of the Maximum Efficiency and the Load Power in the Periodic WPT Systems Using Numerical and Circuit Models

Jacek Maciej Stankiewicz et al.

Summary: This article presents a detailed analysis and computation of wireless power transfer systems using the finite element method and branch current method, discussing theoretical models and presenting formulas for load impedance required to maximize efficiency or load power. The results confirm the correctness of the adopted circuit model, showing the dependence of efficiency and power on the geometry of spiral coils.

ENERGIES (2021)

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Article Energy & Fuels

Multiple Input Multiple Output Resonant Inductive WPT Link: Optimal Terminations for Efficiency Maximization

Giuseppina Monti et al.

Summary: This paper presents a general-purpose procedure for optimizing a resonant inductive wireless power transfer link using a multiple-input-multiple-output (MIMO) configuration. By deriving an eigenvalue problem, the optimal impedance terminations for efficiency maximization are determined, and a step-by-step procedure is proposed to solve this problem. The general applicability of the method makes it suitable for any wireless power transfer link.

ENERGIES (2021)

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Article Energy & Fuels