In this paper, we present a high order sliding mode controller of a DC motor drive connected to a multi-cellular converter. More specifically, we design a second order (super twisting) control algorithm for the speed regulation of a DC motor. For this, a switching control for the multi-cellular converter is derived in order to supply the correct reference value for the speed regulation. A pract...

The aim of this study was to develop a method for the preparation of ferrous fumarate and folic acid oral dispersible tablets and their quality evaluation through HPLC and spectrophotometry. The formulation was optimized with dissolubility and dispersed uniformity as reference parameters by singlefactor and orthogonal experiments. The results exhibited that the optimal formulation contained: 18...

Ropeless lifts are needed for vertical transport in the future super skyscrapers whose height is more than 800m because of the limited handling capacity of roped lifts for such buildings. The ropeless lifts have two advantages: multiple car operation in a single shaft and transferability between shafts. The ropeless lifts can be operated like double-track railway systems by making use of these ...

In most industrial processes that use electrical energy as a source of tension or current, requiring a power circuit to control of these physical states.This paper deals with observability problems of the parallel multi-cell chopper. This type of choppers is a new DC/DC static power converter. After modeling of the power converter, its hybrid dynamical behavior and properties are highlighted. T...

gone. “If we can give them enough space and the right conditions, we could see these species rise once again to the kind of numbers that will give them a chance to cope with change and adversity,” says Geoff Findlay, environment councillor for the district. In the last 200 years, the area has been dramatically changed by the canal, the railway, farming practices, military use and mineral extrac...

This paper presents a real time implementation of the single-phase power factor correction (PFC) AC-DC boost converter. A combination of higher order sliding mode controller based on super twisting algorithm and predictive control techniques are implemented to improve the performance of the boost converter. Due to the chattering effects, the higher order sliding mode control (HOSMC) is designed...