Dipole-Coil-Based Wide-Range Inductive Power Transfer Systems for Wireless Sensors

2016 ◽  
Vol 63 (5) ◽  
pp. 3158-3167 ◽  
Author(s):  
Bo H. Choi ◽  
V. X. Thai ◽  
Eun S. Lee ◽  
Ji H. Kim ◽  
Chun T. Rim
Keyword(s):  
Wireless Sensors ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Wide Range ◽  
Inductive Power

scholarly journals Fault Tolerant Modular Inductive Power Transfer System Design Using Resonator Coil

2021 ◽  
Author(s):  
Hakan Polat
Keyword(s):  
System Design ◽  
Fault Tolerant ◽  
Open Circuit ◽  
Normal Operation ◽  
Transfer System ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Wide Range ◽  
Resonator System ◽  
Inductive Power

<div>In this paper, a design for an inductive power transfer system with a series-series topology with an intermediate resonator is discussed. The proposed method is an improved method that is derived from a conventional IPT system design. While it is applicable for a wide range of different operations, a contactless slip ring design is the main system under investigation. The idea behind adding a resonator coil is to achieve fault tolerance where the system can operate under various open-circuited fault conditions. The proposed system is a two transmitter and four receiver with an intermediate resonator system where the Rx modules are connected parallel to a common DC-bus. </div><div>The system is found to be fault-tolerant to Rx side open circuit faults. For normal operation at rated power, 90.6\% efficiency was achieved.</div>

Performance evaluation of constant current and constant voltage charge control modes of an inductive power transfer circuit with double-sided inductor-capacitor-capacitor and inductor-capacitor/series compensations for electrical vehicle battery charge applications

2020 ◽  
pp. 014233122093243
Author(s):  
Sevilay Cetin ◽  
Veli Yenil
Keyword(s):  
High Efficiency ◽  
Control Period ◽  
Constant Current ◽  
Power Transfer ◽  
Constant Voltage ◽  
Analytical Evaluation ◽  
Inductive Power Transfer ◽  
Charge Control ◽  
Wide Range ◽  
Inductive Power

For electric vehicle (EV) battery chargers, inductive power transfer (IPT) has become popular day by day due to its features such as being safe, comfortable and weather proof. The constant current (CC) and the constant voltage (CV) charge control modes are important for high-efficiency charging and long-life use of Lithium-ion (Li-ion) batteries commonly used in EVs. However, IPT method requires a wide range of operating frequency in order to provide CC/CV charge control modes. In IPT applications, CC and CV charge control modes are mainly achieved with dc-dc circuits using compensation networks at the transmitter and receiver sides. In this study, performances of inductor-capacitor/series compensation and double-sided inductor-capacitor-capacitor compensation topologies are evaluated based on CC/CV charge control modes. The analytical evaluation is presented in terms of voltage and current regulations during the entire charge control period. Finally, presented analytical evaluation is confirmed with ANSYS software providing field-electric common simulation to predict real response of compensation topologies. In the simulation work, both compensation topologies are operated for the maximum 2.5 kW output power and at the 250 V-450 V output voltage range.

scholarly journals Fault Tolerant Modular Inductive Power Transfer System Design Using Resonator Coil

2021 ◽  
Author(s):  
Hakan Polat
Keyword(s):  
System Design ◽  
Fault Tolerant ◽  
Open Circuit ◽  
Normal Operation ◽  
Transfer System ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Wide Range ◽  
Resonator System ◽  
Inductive Power

<div>In this paper, a design for an inductive power transfer system with a series-series topology with an intermediate resonator is discussed. The proposed method is an improved method that is derived from a conventional IPT system design. While it is applicable for a wide range of different operations, a contactless slip ring design is the main system under investigation. The idea behind adding a resonator coil is to achieve fault tolerance where the system can operate under various open-circuited fault conditions. The proposed system is a two transmitter and four receiver with an intermediate resonator system where the Rx modules are connected parallel to a common DC-bus. </div><div>The system is found to be fault-tolerant to Rx side open circuit faults. For normal operation at rated power, 90.6\% efficiency was achieved.</div>

scholarly journals An Improved Autonomous Current-Fed Push-Pull Parallel-Resonant Inverter for Inductive Power Transfer System

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2653 ◽  
Author(s):  
Anning Yu ◽  
Xiaoping Zeng ◽  
Dong Xiong ◽  
Mi Tian ◽  
Junbing Li
Keyword(s):  
Output Power ◽  
Input Voltage ◽  
Resonant Circuit ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Resonant Inverter ◽  
Switching Losses ◽  
Wide Range ◽  
Overall Efficiency ◽  
Inductive Power

In the inductive power transfer (IPT) system, it is recommended to drive the resonant inverter in zero-voltage switching (ZVS) or zero-current switching (ZCS) operation to reduce switching losses, especially in dynamic applications with variable couplings. This paper proposes an improved autonomous current-fed push-pull parallel-resonant inverter, which not only realizes the ZVS operation by tracking the zero phase angle (ZPA) frequency, but also improves the output power and overall efficiency in a wide range by reducing gate losses and switching losses. The ZPA frequencies characteristic of the parallel-parallel resonant circuit in both bifurcation and bifurcation-free regions is derived and verified by theory and experiments, and the comparative experimental results demonstrate that the improved inverter can significantly increase the output power from 7.68 W to 8.74 W and has an overall efficiency ranging from 63.5% to 72.5% compared with the traditional inverter at a 2 cm coil distance. Furthermore, with a 2-fold input voltage (24 V), the improved inverter can achieve an approximate 4-fold output power of 38.9 W and overall efficiency of 83.6% at a 2 cm coil distance.

Thermal Evaluation of an Inductive Power Transfer Pad for Charging Electric Vehicles

2021 ◽  
pp. 1-1
Author(s):  
Seho Kim ◽  
Maedeh Amirapour ◽  
Tharindu Dharmakeerthi ◽  
Vahid Zahiri Barsari ◽  
Grant A. Covic ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Inductive Power
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