This research project uses resonant inductive coupling to transfer power wirelessly. It uses a low power supply to transmit power. The scope of this study is limited to the construction of a simplified WPT system using a resonant coupled inductor system. This study includes the matching sections, derivation of relationship between the coupling coefficient and distance and the parameters (quality factor, coupling coefficients, mutual inductance, resonance frequency) of the resonators. The researcher uses a 12V, 5W CYD LED bulb as the load to be able to distinguish easily whether the system is operating well or not. This study will not cover other possible methods in improving the efficiency of a wireless power.
Wireless power transfer based on coupled magnetic resonances is a new technology in which energy can be transferred via coupled magnetic resonances in the non-radiative near-field. This paper presents the design, simulation, fabrication, and experimental characterization of a single-loop inductor that acts as the receiver and transmitter of the system. A circuit model is presented to provide a convenient reference for the analysis of the transfer characteristics of a magnetically coupled resonator system. Based on this structure, the output voltage in the receiving loop is related to different transfer distances and orientations. A given driving frequency was simulated and analyzed. The driving resonant frequency of the system is approximately 580 kHz.
Table of Contents
- Abstract
- Introduction
- Objectives
- Methodology
- Data Gathering and Analysis
Objectives and Key Themes
The main objective of this study is to characterize a resonant coupled inductor for a wireless power transfer system. This involves designing, simulating, fabricating, and experimentally characterizing a single-loop inductor acting as both transmitter and receiver. The study aims to determine the effective transfer distance at a given power level for various orientations and compare simulation with experimental results.
- Wireless Power Transfer (WPT) system design and implementation
- Characterization of resonant coupled inductors
- Relationship between transfer distance, orientation, and power efficiency
- Comparison of simulation and experimental results
- Development of a method for characterizing WPT systems
Chapter Summaries
Abstract: This abstract introduces wireless power transfer (WPT) based on coupled magnetic resonances, a technology enabling energy transfer via coupled magnetic resonances in the near-field. The study focuses on the design, simulation, fabrication, and experimental characterization of a single-loop inductor acting as both transmitter and receiver. A circuit model is presented for analyzing transfer characteristics, relating output voltage to transfer distance and orientation. Experimental results demonstrate energy transfer even with the receiver shielded by non-metallic objects, highlighting the near-field nature of the system and the inverse square relationship between transfer efficiency and distance.
Introduction: This chapter introduces the increasing demand for wireless power transfer (WPT) solutions due to the proliferation of mobile devices. It discusses various WPT methods, such as laser, piezoelectric, radio waves, microwaves, inductive coupling, and strong electromagnetic resonance, highlighting the advantages of electromagnetic resonance coupling for short-distance, high-efficiency power transfer without health hazards. The chapter sets the stage for the research by emphasizing the need for a WPT system that addresses the challenges of large air gaps, high efficiency, and substantial power transfer.
Objectives: This section clearly outlines the specific aims of the research. It details the steps involved in achieving the overarching goal of characterizing the resonant coupled inductor for the WPT system. The objectives include designing the system, creating and simulating a model, determining effective transmission distances for various orientations, comparing simulation and experimental results, and developing a data analysis procedure for characterizing WPT systems. These objectives provide a structured roadmap for the research.
Methodology: This chapter describes the design, approach, and techniques used in prototyping and testing the WPT system. A methodology flowchart details the procedural steps, from requirement definition (hardware and software) to design and development, testing and debugging, system integration, and finally, the characterization of the resonant coupled inductor. This section provides a detailed account of the experimental process, ensuring reproducibility and transparency in the research.
Data Gathering and Analysis: This section, illustrated by a flowchart (Figure 3.1), outlines the data gathering and analysis process. The chapter focuses on defining hardware and software requirements, designing the system, testing and debugging, and integrating the hardware and software components. The experimental setup involved analyzing variables such as distance between coils, resonant frequency, voltage gain, and system efficiency. The characterization of the resonant coupled inductor is based on the experimental results presented in subsequent sections.
Keywords
Wireless Power Transfer, Coupled Magnetic Resonance, Resonance Frequency, Inductive Coupling, WPT System Design, Power Transfer Efficiency, Experimental Characterization, Near-Field Energy Transfer.
Frequently Asked Questions: Comprehensive Language Preview of Wireless Power Transfer System
What is the main objective of this study?
The main objective is to characterize a resonant coupled inductor for a wireless power transfer (WPT) system. This involves designing, simulating, fabricating, and experimentally characterizing a single-loop inductor acting as both transmitter and receiver. The study aims to determine the effective transfer distance at a given power level for various orientations and compare simulation with experimental results.
What are the key themes explored in this study?
Key themes include wireless power transfer (WPT) system design and implementation, characterization of resonant coupled inductors, the relationship between transfer distance, orientation, and power efficiency, comparison of simulation and experimental results, and the development of a method for characterizing WPT systems.
What are the key chapters and their content?
The document includes an Abstract providing an overview, an Introduction detailing the background and context of WPT, Objectives outlining the research aims, a Methodology section describing the experimental process, and a Data Gathering and Analysis section explaining the data collection and interpretation methods.
What is the methodology used in this research?
The methodology involves a systematic approach, starting with requirement definition (hardware and software), progressing through design and development, testing and debugging, system integration, and culminating in the characterization of the resonant coupled inductor. A flowchart details the procedural steps.
What data was gathered and analyzed?
The data gathering and analysis process focused on variables such as distance between coils, resonant frequency, voltage gain, and system efficiency. The experimental setup is described, and the characterization of the resonant coupled inductor is based on the experimental results.
What are the key findings or conclusions of the study (as previewed)?
The preview suggests that the experimental results demonstrate energy transfer even with the receiver shielded by non-metallic objects, highlighting the near-field nature of the system and the inverse square relationship between transfer efficiency and distance. A full analysis of the findings is not provided in this preview.
What are the keywords associated with this research?
Keywords include Wireless Power Transfer, Coupled Magnetic Resonance, Resonance Frequency, Inductive Coupling, WPT System Design, Power Transfer Efficiency, Experimental Characterization, and Near-Field Energy Transfer.
What type of WPT system is investigated?
The study focuses on a wireless power transfer system based on coupled magnetic resonances, specifically using a single-loop inductor acting as both transmitter and receiver.
What are the advantages of the electromagnetic resonance coupling method used?
The introduction highlights that electromagnetic resonance coupling offers advantages for short-distance, high-efficiency power transfer without health hazards, making it suitable for various applications.
Where can I find more details about the experimental setup and results?
Complete details about the experimental setup, results, and analysis are not included in this preview. The full research paper would contain this information.
- Quote paper
- Alan Nebrida (Author), 2022, Characterization of Resonant Coupled Inductor in a Wireless Power Transfer System, Munich, GRIN Verlag, https://www.hausarbeiten.de/document/1271343
