This paper proposes two new soft-switching transformerless converters with high voltage conversion ratio. These proposed converters achieve soft-switching each with a single auxiliary resonant cell. The merit of these converters is reduced switching losses with lesser number of devices. The main switching devices are turned off with zero current switching (ZCS). Apart from the soft-switching fe...

the direct torque control (dtc) of interior permanent magnet synchronous motor (ipmsm) offers simple structure and fast torque response. the conventional switching table-based dtc (st-dtc) presents some disadvantages like high torque and flux ripple and also variable switching frequency. this paper investigates the improved st-dtc strategies to reduce both torque and flux ripple in dtc of ipmsm...

In the paper, the geometrical parameters and energetics of the extremely narrow pseudo-nondiffracting beams with the spot size of several micrometers are examined. The main attention is focused on design, realization and testing of the set-up enabling conversion of the laser diode beam or the fiber mode to the narrow Bessel-Gauss beam whose spot can be continuously relocated across the plane pe...

In this paper, a real-time information service platform for high-speed train was proposed and implemented. With this platform, all passengers of train will freely to get access by Wi-Fi or other wireless network to enjoy movie, music, train information and travel information. Besides, the platform was connected to a FPGA based data processing center to collect train operation data including ins...

Conversion should not be a problem. It is best to use a general accepted tool, which comes with a preprint format. Until BLUe’s format is generally accepted a BLUe script has to converted to comply with publishers’ formats to get it out. Conversion via TEX’s expansion is exercised in this note, with as result a plain TEX Convertor Assistant, in the spirit of AWK. In netland it does not matter b...

This paper takes into account a hybrid power system consisting of solar and wind units. Both units are connected to the utility grid. The paper concentrates on the use of multijunction solar cell (MJSC) in order to increase the conversion efficiency. The DC output of solar photovoltaic (PV) system is raised by using boost convertor. MPPT technique is used to maximize the output of solar system....