Journal article
A Low-Voltage and High-Current Inductive Power Transfer System With Low Harmonics for Automatic Guided Vehicles
IEEE transactions on vehicular technology, v 68(4), pp 3351-3360
Apr 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This paper proposes the series-series compensation topology to realize a low-voltage and high-current inductive power transfer system (IPT) for the automatic guided vehicles (AGVs). Since the height of the AGV chassis is in the tens of mm, the coupling coefficient is close to 1, resulting in a tightly coupled IPT system. This paper has three main contributions. First, it reveals that the high-order harmonic currents in a tightly coupled IPT system could be very significant. Second, it quantifies the impact of the high-order harmonic currents on the efficiency, which shows the efficiency can be reduced. Third, it proposes an effective method to design the parameters in order to reduce the harmonics and maintain high efficiency. Aiming at the charging of AGVs, a prototype is constructed. The magnetic coupler size is 220 mm × 220 mm × 10 mm. When the airgap is 10 mm, it achieves 1.8-kW power transfer with a dc-dc efficiency of 89.9% from a 400-V dc source to a 24-V dc load, and the charging current is 74 A. When the airgap varies from 5 mm to 15 mm, the power variation is within ±350 W, and the efficiency is not affected. The fast Fourier transform analysis of the experimental currents also validates the theoretical analysis and the simulation results.
Metrics
Details
- Title
- A Low-Voltage and High-Current Inductive Power Transfer System With Low Harmonics for Automatic Guided Vehicles
- Creators
- Fei Lu - Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA, USAYiming Zhang - San Diego State UniversityHua Zhang - Drexel UniversityChong Zhu - San Diego State UniversityLijun Diao - Beijing Jiaotong UniversityMinming Gong - Beijing Jiaotong UniversityWeige Zhang - Beijing Jiaotong UniversityChris Mi - San Diego State University
- Publication Details
- IEEE transactions on vehicular technology, v 68(4), pp 3351-3360
- Publisher
- IEEE
- Grant note
- Z181100004418005 / Beijing Municipal Science and Technology US Department of Energy
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000465241600025
- Scopus ID
- 2-s2.0-85064707230
- Other Identifier
- 991019169547004721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Electrical & Electronic
- Telecommunications
- Transportation Science & Technology