A Comparative Study of S-S and LCC-S Compensation Topology of Inductive Power Transfer Systems for EV Chargers

Chen, Yafei; Zhang, Hailong; Shin, Choonsung; Seo, Kyung-Ho; Park, Sung-Jun; Kim, Dong‐Hee

doi:10.1109/pedg.2019.8807684

Cited by 29 publications

(15 citation statements)

References 3 publications

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“…Therefore, when power is applied to a desired TX coil according to the position of the RX coil, the ferrite of the receiver rotates to the direction of turned-on TX coil [20].…”

Section: Methods Of Wireless Power Transfermentioning

confidence: 99%

Wireless Torque and Power Transfer Using Multiple Coils with LCC-S Topology for Implantable Medical Drug Pump

Rhee

Shin

Woo

et al. 2021

Sensors

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In this paper, we propose a method of wirelessly torque transfer (WTT) and power (WPT) to a drug pump, one of implantable medical devices. By using the magnetic field generated by the WPT system to transfer torque and power to the receiving coil at the same time, applications that previously used power from the battery can be operated without a battery. The proposed method uses a receiving coil with magnetic material as a motor, and can generate torque in a desired direction using the magnetic field from the transmitting coil. The WPT system was analyzed using a topology that generates a constant current for stable torque generation. In addition, a method for detecting the position of the receiving coil without using additional power was proposed. Through simulations and experiments, it was confirmed that WTT and WPT were possible at the same time, and in particular, it was confirmed that WTT was stably possible.

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“…Therefore, when power is applied to a desired TX coil according to the position of the RX coil, the ferrite of the receiver rotates to the direction of turned-on TX coil [20].…”

Section: Methods Of Wireless Power Transfermentioning

confidence: 99%

Wireless Torque and Power Transfer Using Multiple Coils with LCC-S Topology for Implantable Medical Drug Pump

Rhee

Shin

Woo

et al. 2021

Sensors

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“…The study of the IPT system in the field of electric vehicles is mainly concentrated on the compensation topologies [4][5][6][7][8] and the system power control method [9][10][11]. In [4][5], the advantages and disadvantages of different resonant topologies and the applicable scenarios are compared and analyzed by those scholars.…”

Section: Introductionmentioning

confidence: 99%

Voltage Regulating Strategy of a New LCC/S+L Inductive Power Transfer System

Liao,

Wang,

Zhang

et al. 2023

J. Phys.: Conf. Ser.

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In the voltage control of the inductive power transfer (IPT) system, a cascaded DC-DC converter is normally adopted which reduces the power density. However, the wireless communication between the transmitter and the receiver may lead to a delay of control as well as communication instability. This paper proposes a new LCC/S+L resonance topology for the IPT system, which can realize single-stage voltage regulation on the receiving side with both buck and boost capability. Based on the fundamental wave analysis method, this paper analyzes the working principle of LCC/S+L resonant topology. Then the control strategy of the phase shift angle between bridges and within bridges is obtained by the voltage of both ends of the series inductor and the load voltage vector. It is verified by simulation that the proposed new resonance topology and control strategy can achieve output voltage regulation of 300-500 V with a constant 375 V input DC voltage.

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“…Their primary sides employ the LCC compensation method, while their secondary sides employ series or parallel methods to compensate for the secondary side coil. Yafei Chen [13] compares the simplest SS topology with the LCC/S topology. It is pointed out that LCC/S topology is more suitable in the low power range, SS topology is more suitable in the high power range, and SS topology is more sensitive to load.…”

Section: Introductionmentioning

confidence: 99%

A Self-Tuning LCC/SP System for Electric Vehicle Wireless Charging against Large Self- and Mutual Inductance Variations

et al. 2022

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An LCC/SP self-tuning wireless charging system is proposed herein for use in a wireless charging test bench. With different dislocations in addition to changes in the coil self-inductance and mutual inductance caused by different secondary magnetic shielding materials, the system can ensure that the high power factor of the primary side remains unchanged without changing the circuit topology. Based on this normalized detuning LCC/SP circuit model, a switch-controlled capacitor (SCC) self-tuning method based on PI control is proposed. The control scheme employs only two MOSFETs and capacitors, without WIFI communication or parameter identification. A 2 kW experimental device was set up in the laboratory, and experimental verification was carried out with large-scale dislocations and different secondary magnetic shielding materials. The experimental results confirm that the system can maintain a high power factor (>0.9) under a system mutual inductance variation of 47.7% and secondary coil self-inductance variation of 12%, and that it can be applied in electric vehicle wireless chargers or high-power wireless charger test benches.

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A Comparative Study of S-S and LCC-S Compensation Topology of Inductive Power Transfer Systems for EV Chargers

Cited by 29 publications

References 3 publications

Wireless Torque and Power Transfer Using Multiple Coils with LCC-S Topology for Implantable Medical Drug Pump

Wireless Torque and Power Transfer Using Multiple Coils with LCC-S Topology for Implantable Medical Drug Pump

Voltage Regulating Strategy of a New LCC/S+L Inductive Power Transfer System

A Self-Tuning LCC/SP System for Electric Vehicle Wireless Charging against Large Self- and Mutual Inductance Variations

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