THE PURPOSE. ?utipulse rectifiers are widely used as a nonlinear loads in industrial distribution systems. The advantage of mutipulse is low harmonic emission and high power factor. However input currents have wide spectrum including characteristic noncharacteristic harmonics. This has negative impact on the quality. Shunt capacitors simplest form reactive compensation systems with suffer from ...

A power factor correction (PFC) plays a major role towards the improvement of systems quality and stability, as well protection control performance. This paper presents novel method for automatic (APFC) based on coherence approach. In this method, original required reactive compensation can be determined using cross-coherence coefficients evaluated between voltage current signals. Beside auto-c...

input frequency is one of the important variables in design and performance analysis of single-sided linear induction motors (slims). changing the frequency changes both the dimension of the slim in design process and the performance of the designed motor. the frequency influences the induced eddy currents in the secondary sheet as well as saturation level of the secondary back-iron. in this pa...