Wireless Power Transfer Analysis Using Scattering Parameters
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2018, Vol 42, Issue 0
Abstract
Wireless power transfer systems (WPTS) can be made more efficient from the emitter-receiver and from the active power transfer efficiency point of view by using the scattering parameters S. Using electrical circuit theory and starting from the correct formulation of scattering parameters, S parameters are computed in an automated manner based on modified nodal equations corresponding to WPTS. Advanced computation software (ADS, Ansoft Extractor Q3D, Cadence, etc.) is used to compute the parameters corresponding to the magnetically coupled coils. The magnetically coupled coils can be described by the parameters of the resulting equivalent circuit, such as: impedance and admittance matrices, transfer coefficients matrix and the scattering parameters matrix. This paper presents on one hand the correct formulation of S parameters and on the other hand the practical use of these parameters to streamline the wireless energy transfer. To generate the analyzed parameters, dedicated function were developed in MATLAB and existing routines from the Microwave toolbox (MATLAB) have been used. The frequency variation of S has been studied using graphical representation and Smith diagram. The accuracy in defining the scattering parameters S, based on analog circuit theory in harmonic state, in complex domain, is confirmed by the results obtained using the program ADS, that contains routines specific for generating S parameters.
Authors and Affiliations
Marilena Stănculescu, Maria - Lavinia Bobaru, Mihai Iordache, Dragoş Niculae, Victor Bucată
Keywords
Related Articles
- EP ID EP433258
- DOI -
- Views 160
- Downloads 0
Testing a Filtering and Regeneration System on a Recuperative Stand
The paper has three main objectives: the presen-tation of a laboratory model of a system for active filtering and regeneration (SISFREG) developed through an applied research collaborative project in the frame of Partner...
HYDRAULIC BENCH FOR ELECTRO-HYDRAULIC SERVO-VALVES AND SERVO-ACTUATORS
This paper presents a hydraulic bench for electro-hydraulic servo-valves and servo-actuators testing. This bench was realized in the laboratory of the Avionics Division of the Faculty of Electrical Engineering. For the h...
STUDY OF UNEVENNESS HEIGHT DISTRIBUTION FOR GRAPHITE PANTOGRAPH CONTACT STRIP
An assumption of data distribution is of great importance because in many cases it determines the method that ought to be used to estimate the unknown parameters in the model. In this paper we performed a study of uneven...
Continuous Monitoring and SCADA Integration of the Sag of Overhead Electricity Transmission Cables Based on the Measurement of their Slope
This paper presents a proposed system for the continuous monitoring of conductor sag values in overhead electricity transmission lines through slope angle measurement, by using a mathematical model based on the catenary...
The Rotary Magnetostrictive Motor: a Promising Solution for Low Power Actuators
This paper contains a theoretical and experimen-tal study on rotary magnetostrictive motor, performed with the purpose of determining the optimal conditions of opera-tion. The two main types of magnetostrictive motors kn...