Design and Implementation of High-Misalignment Tolerance WPT System for Underwater Vehicles Based on a Variable Inductor

Li, Jia; Zhu, Chong; Xie, Jixie; Lu, Fei; Zhang, Xi

doi:10.1109/tpel.2023.3267104

Cited by 12 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Owing to its ability to solve safety issues caused by poor contact, aging and bulging of traditional wired power supply methods (Liu et al, 2023) Wireless power transfer (WPT) technology has been widely applied in various fields, including consumer electronics (Li et al, 2023a;Zhang et al, 2023) medical devices (Xue et al, 2012;Xu et al, 2022) underwater equipment (Li et al, 2023b) drones (Wang et al, 2023) and electric vehicles (He et al, 2022;Geng et al, 2023;Oumidou et al, 2022). However, in practice, there is inevitably a position offset between the transmitting and receiving coils, which changes the mutual inductance parameter of the system, causing output voltage fluctuations, reducing transmission power and efficiency and even affecting system stability.…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of wireless power transfer system with anti-misalignment constant voltage output characteristics

Wang,

Guan,

Wang

et al. 2024

View full text Add to dashboard Cite

Purpose This study aims to solve the problem of high output voltage fluctuation and low efficiency caused by the misalignment of the magnetic coupling structure in the wireless charging system for electric vehicles. To address these issues, this paper proposes a dual LCC-S wireless power transfer (WPT) system based on the double-D double-layer quadrature (DDDQ) coil, which can realize the anti-misalignment constant voltage output of the system. Design/methodology/approach First, this paper establishes the equivalent circuit of a WPT system based on dual LCC-S compensation topology and analyzes its constant-voltage output characteristics and the relationship between system transmission efficiency and coupling coefficient. 1. Quadruple D (Ahmad et al., 2019) and double-D quadrature pad (DDQP) (Chen et al., 2019) coils have good anti-misalignment in the transverse and longitudinal directions, but the magnetic induction intensity in the center of the coils is weak, making it difficult for the receiving coil to effectively couple to the magnetic field energy. 2. Based on the double-D quadrature (DDQ) structure coil that can eliminate the mutual inductance between coupling coils and cross-coupling, Gong et al. (2022a) proposed a parameter optimized LCC-LC series-parallel hybrid topology circuit, which ensures that the output current fluctuation is controlled within 5% only when the system is misaligned within the 50% range along the X direction, achieving constant current output with anti-misalignment. The magnetic coupling structure’s finite element simulation model is established to analyze the change in magnetic induction intensity and the system’s anti-misalignment characteristics when the coil offsets along the x and y axes. Finally, an experimental prototype is developed to verify the constant voltage output performance and anti-misalignment performance of the system, and the proposed anti-misalignment system is compared with the systems in existing literature, highlighting the advantages of this design. Findings The experimental results show that the system can achieve a constant voltage output of 48V under a time-varying load, and the output voltage fluctuates within ±5% of the set value within the range of ±60 mm lateral misalignment and ±72 mm longitudinal misalignment. Originality/value Based on the dual LCC-S WPT system, the mutual inductance between the same side coils is reduced by adding decoupling coils, and the anti-misalignment characteristics and output power of the system are improved in a certain range. It is aimed at improving the stability of the system output and transmission efficiency.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis and design of wireless power transfer system with anti-misalignment constant voltage output characteristics

Wang,

Guan,

Wang

et al. 2024

View full text Add to dashboard Cite

show abstract

A 1 kW, 76% efficiency underwater single‐capacitor coupled WPT system with a 1 m separation distance single‐capacitor coupled

Nie,

Da,

et al. 2024

Circuit Theory & Apps

View full text Add to dashboard Cite

In this paper, an underwater single‐capacitor coupled wireless power transmission (USCC‐WPT) system is proposed, which operates at 200 kHz and can transmit 1 kW of power at 1 m in seawater with an efficiency of 76%. The USCC‐WPT system produces no eddy current losses in seawater, and the distance is increased compared to conventional inductive power transfer systems. The system proposed in this paper has a wide range of applications underwater. The load‐independent constant voltage (CV) output and misalignment tolerance properties of the USCC‐WPT system are analyzed and validated by an equivalent circuit model constructed from the stray capacitance. The 1 kW prototype demonstrates the feasibility of the USCC‐WPT system proposed in this paper, while the system can work properly with 50 cm misalignment.

show abstract

IPT system with misalignment tolerance and constant voltage output based on BP coupling pad optimization design

Gong,

Shi,

Zhao

2024

Electr Eng

View full text Add to dashboard Cite

Design and Implementation of High-Misalignment Tolerance WPT System for Underwater Vehicles Based on a Variable Inductor

Cited by 12 publications

References 34 publications

Analysis and design of wireless power transfer system with anti-misalignment constant voltage output characteristics

Analysis and design of wireless power transfer system with anti-misalignment constant voltage output characteristics

A 1 kW, 76% efficiency underwater single‐capacitor coupled WPT system with a 1 m separation distance single‐capacitor coupled

IPT system with misalignment tolerance and constant voltage output based on BP coupling pad optimization design

Contact Info

Product

Resources

About