Conference proceeding
A Compact and Low-Distortion Inductive Charging System for Automatic Guided Vehicles Based on LCC Compensation and Integrated Magnetic Coupler
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Conference Proceedings
01 Jan 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This paper focuses on the study of the tightly-coupled inductive power transfer technology for the charging of automatic guided vehicles. It shows that there are a significant amount of high-order harmonic currents in the system due to the square-wave input voltage and the high coupling coefficient. The harmonics would induce extra power loss and reduce the system efficiency. This paper proposes to utilize the double-sided LCC compensation circuit to realize the wireless charging system, in which the inductors and capacitors work as the low-pass filters to reduce the harmonics. Besides, the compensation inductors are integrated into the main coil to save space, resulting in a compact coupler structure. The circuit working principle and the finite element (FEM) analysis of the magnetic coupler are provided in this paper to show the design process. In addition, a 1.8 kW prototype is implemented with a size of 220×220×10mm magnetic coupler. In a low-voltage and high-current application, the dc-dc efficiency reaches 86.1% in the 24V/74A output condition, and the total harmonic distortion is limited within 10% when the airgap is 15mm.
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9 citations in Scopus
Details
- Title
- A Compact and Low-Distortion Inductive Charging System for Automatic Guided Vehicles Based on LCC Compensation and Integrated Magnetic Coupler
- Creators
- Hua Zhang - Drexel University, Electrical and Computer EngineeringChong Zhu - Shanghai Jiao Tong UniversityFei Lu - Drexel University, Electrical and Computer Engineering
- Publication Details
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Conference Proceedings
- Conference
- 2019 IEEE Transportation Electrification Conference and Expo (ITEC) Conference (Detroit, Michigan, United States, 19 Jun 2019–21 Jun 2019)
- Publisher
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000502391500040
- Scopus ID
- 2-s2.0-85071300777
- Other Identifier
- 991019170499504721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Electrical & Electronic
- Transportation Science & Technology