FDB coils integrated DDQ structure and SLCC‑PLCC network design for AGV wireless charging systems

Yun Zhang; Weiyi Huang; Xiaodong Liu; Zhen Huang; Hongxuan Chao

FDB coils integrated DDQ structure and SLCC‑PLCC network design for AGV wireless charging systems

Vol. 25, No. 5, pp. 941-951, May 2025

10.1007/s43236-024-00934-x

Automated guided vehicle

High-efficiency network

Integrated magnetic structure

Wireless Charging System

Abstract

In wireless charging systems, there has not been in-depth research on the low voltage, high current characteristics of automated guided vehicles (AGVs). This paper proposes a high-efficiency series-parallel LCC (SLCC-PLCC) network for AGV wireless charging systems. Due to the working conditions of AGVs with their high requirements for space utilization, an inductance integration scheme based on flat double B (FDB) coils is proposed in combination with the decoupling characteristics of SLCC-PLCC networks and bipolar-double D quadrature (DDQ) structures, achieving the design requirements of flatness and high space utilization on the AGV side. Based on this, the significant advantages of FDB coils in terms of a stray magnetic field, cost, and space utilization are analyzed, and an FDB coils integrated DDQ structure design scheme is proposed. Finally, the prototype of a 2.4 kW-AGV wireless charging system is established and testified. Experimental results verify that the prototype can output a voltage ranging from 64 to 80 V at a maximum efficiency of 89.5%.

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Cite this article

[IEEE Style]

Y. Zhang, W. Huang, X. Liu, Z. Huang, H. Chao, "FDB coils integrated DDQ structure and SLCC‑PLCC network design for AGV wireless charging systems," Journal of Power Electronics, vol. 25, no. 5, pp. 941-951, 2025. DOI: 10.1007/s43236-024-00934-x.

[ACM Style]

Yun Zhang, Weiyi Huang, Xiaodong Liu, Zhen Huang, and Hongxuan Chao. 2025. FDB coils integrated DDQ structure and SLCC‑PLCC network design for AGV wireless charging systems. Journal of Power Electronics, 25, 5, (2025), 941-951. DOI: 10.1007/s43236-024-00934-x.