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295 results on '"Xia, Jinglin"'

21. Addressing EMI and EMF Challenges in EV Wireless Charging with the Alternating Voltage Phase Coil.

Author

Shafiq, Zeeshan, Li, Tong, Xia, Jinglin, Li, Siqi, Yang, Xi, and Zhao, Yu

Subjects
WIRELESS power transmission, ELECTRIC coils, ELECTRIC vehicle charging stations, ELECTRIC fields, ELECTROMAGNETIC fields
Abstract

Wireless charging technologies are widely used in electric vehicles (EVs) due to their advantages of convenience and safety. Conventional wireless charging systems often use planar circular or square spiral windings, which tend to produce strong electric fields (E-fields), leading to electromagnetic interference (EMI) and potential health risks. These standard coil configurations, while efficient in energy transfer, often fail to address the critical balance between E-field emission reduction and power transfer effectiveness. This study presents an "Alternating Voltage Phase Coil" (AVPC), an innovative coil design that can address these limitations. The AVPC retains the standard dimensions of traditional square coils (400 mm in length and width, with a 2.5 mm wire diameter and 22 turns), but introduces a novel current flow pattern called Sequential Inversion Winding (SIW). This configuration of the winding significantly reduces E-field emissions by altering the sequence of current through its loops. Rigorous simulations and experimental evaluations have demonstrated the AVPC's ability to lower E-field emissions by effectively up to 85% while maintaining charging power. Meeting stringent regulatory standards, this advancement in the proposed coil design method provides a way for WPT systems to meet stringent regulatory standards requirements while maintaining transmission capability. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Research on the Optimization Algorithm for Emission Control of Hybrid Power System Based on Energy Flow Model

Author

Zhang, Qingyang, Sun, Wei, Xia, Jinglin, Li, Kai, Yuan, Xinmei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Sugumaran, Vijayan, editor, Xu, Zheng, editor, P., Shankar, editor, and Zhou, Huiyu, editor

Published
2019
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39. A Hybrid Current Balancing Method for Multiple Paralleled SiC-MOSFET Half-Bridge Modules

Author

Lu, Sizhao, Wu, Lei, Deng, Jian, Li, Siqi, Xia, Jinglin, and Deng, Xiaoting

Abstract

The parallel connection of silicon carbide (SiC)-mosfet modules can effectively increase the rated current of modules, however, the related current imbalance issue will affect the performance of the system. To solve this problem, this article proposes a hybrid current balancing method for multiple paralleled SiC-mosfet half-bridge modules, which can balance the transient current and steady-state current of the modules, simultaneously. First, the operating principles of the current balancing circuit are analyzed, and multiple toroidal magnetic cores with additional windings and dc current compensator are utilized to suppress the transient imbalance currents. Then, a novel current detection circuit is introduced to capture the steady-state imbalance current of the modules. Based on the obtained unbalanced currents, the steady-state currents of the modules are finally balanced by using a closed-loop active pulse width modulation (PWM) edge regulation method. The proposed hybrid current balancing method does not require high-bandwidth high-precision current sensors and introduces negligible reactive power to the system. It can be easily extended to more paralleled modules and employed in dc–dc converters. The effectiveness of the proposed method is experimentally verified by a prototype with three paralleled 1200 V/120 A SiC-mosfet half-bridge modules. The results show that with the proposed method, both the transient current and steady-state current are well balanced.

Published
2024
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