Basic analysis of the circuit model using relay antenna in magnetic resonance coupling position sensing system

Pasku

IEEE Trans. Instrum. Meas.

et al. 2015

This paper describes the design and realization of a Magnetic Indoor Positioning System. The system is entirely realized using off-the-shelf components and is based on inductive coupling between resonating coils. Both system-level architecture and realization details are described along with experimental results. The realized system exhibits a maximum positioning error of less than 10 cm in an indoor environment over a 3×3 m 2 area. Extensive experiments in larger areas, in non-line-of-sight conditions, and in unfavorable geometric configurations, show sub-meter accuracy, thus validating the robustness of the system with respect to other existing solutions.

Section: Introductionmentioning

confidence: 99%

An Indoor AC Magnetic Positioning System

Pasku

IEEE Trans. Instrum. Meas.

et al. 2015

“…Over time, researchers have proposed various strategies to enhance the efficiency of WPT systems. These approaches encompass the utilization of auxiliary coils [4,[18][19][20], the development of novel mathematical models [21][22][23][24][25], the design of advanced control circuits [1,[26][27][28][29], the application of machine learning techniques [30][31][32][33][34][35], and the modification of geometric structures [36][37][38][39][40][41][42][43]. These endeavours have aimed to optimize the performance and effectiveness of WPT systems in an academic and formal context.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Performance Analysis of Wireless Power Transfer with Parametric Simulation Approach

ÇİÇEK,

BALCI,

SABANCI

2023

KUJES

This paper presents a parametric optimization and normalization approach for coreless Resonant Inductive Coupling Wireless Power Transfer (RIC-WPT) systems. The used system is based on a series–series (SS) compensated circuit via flat spiral coils. Moreover, the recommended approach system finds optimum capacitor values for the best efficiency point where the RIC-WPT system operates. Flat spiral three-dimensional (3D) coils are modelled and parametric analysed with different air gaps in ANSYS-Electronics-Maxwell software which is based on the Finite Element Method (FEM). Then power electronics circuit with a full-bridge inverter is designed in Ansys/Simplorer software. The coils and the power electronics circuit are co-simulated with parametric values. Thus, as a result of parametric simulation studies, the most efficient version of a Wireless Power Transfer (WPT) system structure is proposed with the design and normalized power electronics elements that can be physically applied for the chosen operating frequency value. As a result of the simulation studies, power transmission is realized with an efficiency of approximately 74.31% while the distance between the coils was 200 mm. Furthermore, useful information for WPT designs is been obtained thanks to co-simulation studies by changing power electronics circuit parameters and electromagnetic modelling parameters.

“…However, the coverage of these first-generation WPT configurations still remains limited. To increase the effectiveness of WPT configurations in long-range WPT applications, multiple coupled resonators are deployed between source and load coupled resonators extending their effective transfer distance [40,43,46,52,[59][60][61][62][63][64][65][66].…”

Section: Introductionmentioning

confidence: 99%

“…Among them, straight DCR configurations, which are studied in this paper, have the unique feature that their coupled resonators centers lie along the same transfer distance axis forming one main power flow path [40,63]. These DCR configurations enjoy higher PTEs for a given long-range transfer distance and higher application potential for power levels that range from few watts to many kilowatts in comparison with the limited uses of first-generation WPT configurations [40,46,52,60,[62][63][64][65].…”

Section: Introductionmentioning

confidence: 99%

Practical Coupled Resonators in Domino Arrangements for Power Transmission and Distribution: Replacing Step-Down Power Transformers and Their Branches across the Power Grid

Lazaropoulos

2013

Journal of Energy

This paper considers the potential of replacing step-down power transformers of the entire power grid as well as part of their transmission line branches with wireless power transfer (WPT) technology components. Exploiting the state-of-the-art evolutions in the fields of WPT technology, coupled resonators in domino arrangements—domino coupled resonator (DCR) configurations—are proposed as suitable technological substitute for step-down power transformers and are investigated in terms of performance metrics such as power transfer efficiency (PTE) and transformation ratio (TR). The contribution of this paper is fivefold. First, an analytical theoretical analysis appropriate to the study of practical DCR configurations is demonstrated. In order to support the DCR configuration replacement venture, a detailed set of assumptions regarding efficient mid- and long-range high-power WPTs as well as related technical issues is first presented. The validity of the theoretical analysis is verified through experimental measurements. Second, applying the proposed theoretical analysis, a wealth of system parameters that mainly influences the PTE and TR of DCR configurations is identified. Their quantitative effect as well as corresponding DCR configuration adjustments are first presented. Third, an approximate method, denoted as approximate chain scattering matrix (CSM) method, is first introduced. Based on the scattering matrix theory formalism, the approximate CSM method is suitable for mid- and long-range DCR configurations when the theoretical analysis becomes computationally slow. The numerical results of approximate CSM method are compared with the respective ones of theoretical analysis validating the extent and the accuracy of approximate CSM method. Fourth, the potential of power transformer replacement with practical DCR configurations is thoroughly investigated in terms of their TRs. A plethora of high-voltage/medium-voltage (HV/MV), MV/low-voltage (MV/LV), and HV/LV power transformers used across the world is investigated verifying their replacement potential with practical DCR configurations in all the cases examined. Fifth, based on a detailed collection of dimensions concerning power transformers and transmission line branches, it is first verified that practical DCR configurations cannot only substitute all step-down power transformers of the today's power grid but also replace entire transmission line branches too. Finally, it is obvious that there is a long journey ahead for WPT technology and its ultramodern DCR configurations to be affordably, widely, reliably, sustainably, and safely adopted in the human society. During these first steps of WPT development for power transmission and distribution, theoretical analyses and visions are necessary. The last cable problem, that is, the seamless power delivery as easily as information is now transmitted through the air, is one of the major technological challenges of the 21st century, and, thus, WPT technology will certainly play key role.