Inductive System Research Articles

Misalignment Tolerance Extension for Inductive Power Transfer System by Utilizing Slight Frequency-detuned Compensation

Misalignment Tolerance Extension for Inductive Power Transfer System by Utilizing Slight Frequency-detuned Compensation

A Novel Cascaded Buck Active Rectifier With Arbitrary Impedance Conversion Ratio for Inductive Power Transfer System

A Novel Cascaded Buck Active Rectifier With Arbitrary Impedance Conversion Ratio for Inductive Power Transfer System

Design and implementation of magnetically coupled inductive power transfer system for electric vehicle charging applications

A research paper or proposal on designing a 1.6 kW Resonant Inductive Power Transfer (IPT) system for electric vehicles (EVs). Design, Modeling, and Analysis of a 1.6 kW Resonant IPT System for EVs. To Enhance Design Performance: Improve the efficiency and effectiveness of power transfer compared to traditional EV charging systems. Conduct Loss Analysis and Analyze and minimize losses associated with the IPT system. The Advantage Highlight advantages of the proposed system over existing EV charging methods. Methodology, Integration with AC Grid: Despite EV systems being connected to the grid, this research proposes further integration and improvement using resonant (Compensated Network) circuits within IPT systems. Resonant Circuit Utilization: By matching the supply frequency with the circuit’s resonant frequency, optimal performance is achieved, addressing current IPT system drawbacks. Implementation Steps, Simulation: Evaluate primary and secondary circuits through simulation. Component Selection: Determine component values based on derived equations. Hardware Implementation: Construct the system in hardware based on simulation results. Feasibility Testing: Validate calculations through simulation and practical hardware testing. Contribution, this research aims to contribute to the field by demonstrating, improved performance through resonant IPT systems. Feasibility of integrating such systems into EV applications. Practical benefits over conventional EV charging methods. By leveraging resonant circuits in IPT systems, this study aims to demonstrate enhanced performance and efficiency suitable for EVs, thereby contributing to the advancement of EV technology and grid integration. This structured summary encapsulates the key aspects and goals of the research paper as described.

Core Structure Optimization in Double-D Coil With Enhanced Performance for Inductive Wireless Power Transfer System

Core Structure Optimization in Double-D Coil With Enhanced Performance for Inductive Wireless Power Transfer System

A New Hybrid Magnetic Coupler in Inductive Power Transfer System for High Misalignment Tolerance

A New Hybrid Magnetic Coupler in Inductive Power Transfer System for High Misalignment Tolerance

Power Stability Enhancement in Inductive Wireless Power Transfer Systems: A Review

Power Stability Enhancement in Inductive Wireless Power Transfer Systems: A Review

Design and Analysis of Inductive Power Transfer System for Electric Machine Excitation

Design and Analysis of Inductive Power Transfer System for Electric Machine Excitation

Arbitrary power distribution and efficiency optimization for dual-receiver inductive power transfer system with variable coupling

Arbitrary power distribution and efficiency optimization for dual-receiver inductive power transfer system with variable coupling

A New Cross-Overlapped Decoupling Coil Structure for EV Dynamic Inductive Wireless Charging System

A New Cross-Overlapped Decoupling Coil Structure for EV Dynamic Inductive Wireless Charging System

Conditional Pulse Density Modulation for Inductive Power Transfer Systems

Conditional Pulse Density Modulation for Inductive Power Transfer Systems

Multi-channel inductive power transfer system based on ISOP topology

Multi-channel inductive power transfer system based on ISOP topology

Constant current/voltage characteristics inductive power transfer system with variable static S-T/FC compensation

Constant current/voltage characteristics inductive power transfer system with variable static S-T/FC compensation

Wireless charging technologies for electric vehicles: Inductive, capacitive, and magnetic gear

AbstractWireless charging technologies have emerged as a promising solution for electric vehicle (EV) charging, offering convenience and automation. This paper provides a comprehensive review of the three key wireless charging technologies: inductive, capacitive, and magnetic gear. For inductive and capacitive technologies, the working principle, architectures, topologies, advantages, and challenges are discussed and analyzed considering both stationary and dynamic modes of operation. In addition, the paper introduces and analyzes the concept of mixed wireless power transfer, which combines inductive and capacitive charging systems. Additionally, the study explores the magnetic gear wireless power transfer technology, which leverages the interaction between synchronous permanent magnets to transmit power wirelessly. Various research and development efforts related to these technologies are reviewed considering academia, research labs and industry. A comparative analysis among different technologies is presented, considering key performance metrics such as power transfer, efficiency, cost, and operating frequency was presented. This review paper serves as a comprehensive resource for researchers, engineers, and industry professionals interested in wireless charging technologies for EV charging. It highlights the advancements, trade‐offs, and potential synergies among inductive, capacitive, and magnetic gear systems, paving the way for the widespread adoption of wireless charging and the development of self‐charging and self‐driving EVs.

SIMP-Method Topology Optimization of Ferrite Structures in Inductive Power Transfer Systems

SIMP-Method Topology Optimization of Ferrite Structures in Inductive Power Transfer Systems

Calculation of Mutual Inductance between Two Planar Coils with Custom Specifications and Positions Using a Machine Learning Approach

Wireless power transmission systems enable the transfer of electricity between grids without the use of physical wires. Different methods are employed for wireless power transfer, each suited to different distances. Inductive coupling, the subject of this study, is typically used for shorter distances. The effectiveness of inductive coupling systems is evaluated using a parameter called mutual inductance. In the present study, an attempt is made to provide a model for calculating mutual inductance in wireless power transfer systems using a machine learning approach. To achieve this goal, finite element simulations are employed, and 64 datasets are generated from mutual inductance calculations in various scenarios. These datasets are used to train machine learning regression algorithms, including linear regression, support vector regression, decision tree regression, and artificial neural networks. The evaluation results, using performance metrics such as R-squared, mean absolute error, and root mean square error, confirm that among these four algorithms, the artificial neural network exhibits higher computational accuracy with an R-squared value of 0.950 for predicting test data.

Design of Power Supply Based on Inductive Power Transfer System for Medium Voltage Direct Current Sensor

This paper proposes a medium voltage direct current (MVDC) sensor power supply method based on inductive power transfer (IPT). Given that MVDC distribution networks transmit power at high voltages (several tens of kV), control through sensors is necessary to prevent exacerbating MVDC distribution network accidents. Moreover, these high voltages in MVDC distribution networks mean that high voltage insulation is required between the sensor and the distribution line and for any power supply device electrically connected to the sensor. Therefore, this paper proposes a safe and reliable power supply method using the principle of IPT to maintain a suitable insulation distance between the distribution network and the current sensor supply line. After proposing and designing a transmitter/receiver pad and IPT system by considering the current sensor specifications, a 50-W experimental prototype is developed. The experiments demonstrated that the proposed IPT system can resolve concerns about the breakdown of insulation between distribution networks and power supply lines.

Coarse directed limits of metric spaces admitting coarse embeddings into Hilbert spaces

For an inductive system of metric spaces that are coarsely embeddable into Hilbert spaces, its directed limit in the category of metric spaces may not admit a coarse embedding into a Hilbert space. In this article, we will show that the corresponding directed limit in the category of coarse spaces (with morphisms being bornologous maps) is always coarsely embeddable into a Hilbert space.

Load Modulation Feedback in Adaptive Matching Networks for Low-Coupling Wireless Power Transfer Systems

This paper explores the use of load modulation feedback (LMF) in adaptive matching networks (MN) for low-coupling inductive wireless power transfer systems, with an emphasis on its use in implantable medical devices. After deriving the handy expressions of link efficiency and modulation depth in the case of LMF in the case of loose coupling, a brief overview of the most common capacitive resonance networks is presented. In particular, the MN employing two capacitors in Series–Parallel and in Parallel–Series configurations allow adaptivity with a wide range of load conditions. Then, the authors describe an effective design procedure of an adaptive matching network with LMF for an inductive wireless power transfer system, exploring the trade-off between power efficiency and modulation depth. Analytical and electrical simulations show that the proposed simple modulation strategy can successfully achieve high power transfer efficiency while maintaining steady back telemetry under varying loading conditions.

Modeling and Design Optimization of Loosely Coupled PCB Spiral Coils in Inductive Power Transfer Systems

Modeling and Design Optimization of Loosely Coupled PCB Spiral Coils in Inductive Power Transfer Systems

A 5 kW Hull-Compatible Inductive Charging System With 360° Folded Spatial Unipolar Coupler for Autonomous Underwater Vehicles (AUVs)

A 5 kW Hull-Compatible Inductive Charging System With 360° Folded Spatial Unipolar Coupler for Autonomous Underwater Vehicles (AUVs)