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EPE Journal Volume 25-2 - Papers
- Investigation of Using SiC MOSFET for High Temperature Applications
- Integrated Magnetic Component in a 2 kW Resonant Power Supply
- Sensorless Speed Control of PMSM based on MRAC using Active Power
- Global Identification of Mechanical and Electrical Parameters of Asynchronous Motor Driven Joint with a Fast CLOE Method
- Bidirectional Semiconductor Transformer using high frequency resonant converter
EPE Journal Volume 25-2 - Editorial
By Lech Grzesiak; Mariusz Malinowski; Jacek Rabkowski; Bartlomiej Ufnalski
The editorial of EPE Journal Volume 25-2, EPE’17 ECCE – Europe, written by Lech Grzesiak, Mariusz Malinowski, Jacek Rabkowski and Bartlomiej Ufnalski.
EPE Journal Volume 25-2 - Papers
By Rémy Ouaida; Maxime Berthou; Pierre Brosselard; Sebastien Oge; Pascal Bevilacqua; Charles Joubert
This paper presents the performances expected by SiC MOSFETs for high temperature applications. A complete static and dynamic electrical characterization of SiC MOSFETs have been tested under varying temperature from 25°C to 250°C using suitable packaging materials. To go further, aging tests have been performed to evaluate lifetime of SiC MOSFET under switching condition up to 300°C.
By Cezary Worek; Rafał Widórek; Sławomir Ligenza
The paper presents a design of a 2kW resonant power supply dedicated for telecom applications (i.e. battery charging applications). The power supply is based on a series-parallel LCLC resonant converter, which has some interesting features, such as self protection from load short-circuit. The design comprises an integrated magnetic component intended to be used as the resonant tank inductors. The construction presented in the paper allows for reduction of the size of the inductors and improves the magnetic core utilization. The paper explains the principle of operation of the integrated magnetic component, followed by functional and magnetic field simulations. Measurement results are presented for final verification.
By Bassel Sahhary; Zhixun Ma; Ralph Kennel
In this paper an active power based Model Reference Adaptive Control (MRAC) is used for on-line rotor speed estimation of a vector controlled permanent magnet synchronous motor (PMSM). The advantage of this method is that the simplified expression of adaptive model does not contain any integral operation - hence the speed identification is somewhat robust and does not need any differential equation. The dead times and voltage drops of the power switches are compensated. Experimental as well as simulation results illustrate the practicability of the proposed method.
By P. Ph. Robet; M. Gautier
In many cases of new actuation of compliant controlled or bio-inspired joint driven robot, a global identification of electrical and mechanical coupled dynamics is required. This paper proposes a technique which mixes a closed loop output error method with the inverse dynamic identification model method, which allows for the use of linear least-squares technique to estimate the parameters. A first approach which has been validated on a DC motor achieves a decoupled identification of the electrical and mechanical dynamics but fails to make a simultaneous identification. A major improvement of that method is proposed to carry out the coupled identification of both mechanical and electrical parameters. A validation on an asynchronous motor driven joint shows the effectiveness of the new procedure.
By Byung-Kwon Lee; Jun-Young Lee
This paper describes a prototype of modularized 3-phase semiconductor transformer which was developed in the lab for feasibility study. The developed prototype is composed of three units of single-phase semiconductor transformer coupled in Y-connection. Each single-phase unit has multiple units of high-voltage high-frequency resonant AC-DC converter, a low-voltage hybrid-switching DC-DC converter, and a low-voltage hybrid-switching DC-AC inverter. Also each singlephase unit has two DSP boards to control converter operation and to acquire monitoring data. Monitoring system was developed based on LabView by using CAN communication between the DSP board and the PC. Through diverse experimental analyses it was verified that the prototype operates with proper performance under normal and sag condition. The developed prototype confirms a possibility to fabricate a commercial high-voltage high-power semiconductor transformer by increasing the number of series-connected converter modules in high-voltage side and improving the system efficiency with a new switching device such as SiC device.