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This paper presents an investigation on the effects of voltage flickers caused by AC electric arc furnace (EAF) loads in electrical power systems. This investigation is based on measurements and simulations, and carried out in the industrial zone where multiple EAF loads are intensely located. The scope is focused on the effects of such continuous disturbances on synchronous generators used in the...
The modularity of shunt active power filters (APF) is considered to be the most advantageous feature that allows parallel operation of a number of modules. From the viewpoint of reliability, flexibility, and efficiency, modular filtering approach is quite appropriate for high power applications. This configuration allows various control schemes to be employed, namely power and frequency splitting...
In this paper, the design procedures of a unity power factor pulse width modulated (PWM) rectifier and shunt active power filter (APF) using MATLAB/Simulink blocksets and code generation tools for TMS320F2812 fixed-point digital signal processor (DSP) is presented. A systematic design approach is given to develop a rapid prototype system in a reliable procedure. The design procedure uses Simulink...
An unusual variation of the iliac veins was detected by computed tomography (CT) angiography in a 35-year-old man. In coronal CT reconstructions, it was shown that the right internal iliac vein of this patient crossed to the left side and drained to the left common iliac vein. This variation is important in retroperitoneal, laparoscopic and orthopedic surgery. We present the CT findings and discuss...
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