A custom power device known as dynamic voltage restorer (DVR) has been investigated to operate a distribution system at its desired performance. The with voltage-related quality issues in the supply side addressed through this article using DVR. Four different grid disturbances, such sag, swell, unbalances, and distortions, have taken into account while testing DVR capability. controlled optimi...

This paper analyses the control of nonlinear plant with the changing dynamics. Adaptive controllers, based on fuzzy logics, are synthesized for the control of air pressure and water level. Their satisfactory efficiency is experimentally demonstrated under different working conditions. Fuzzy controllers are compared to conventional PI and PID controllers.

In order to ensure that wind turbines could be online under the condition of power grid transient fault, the technology of low voltage ride-through (LVRT) for wind turbine has become a research focus of experts and scholars at home and abroad. In current wind turbine control strategy, the PI parameters of the control system keep unchanged when the wind turbine is in the process of LVRT, which a...

The non-linearity and constantly changing cross section of the conical tank are the immense challenge in process control and it cannot be effectively controlled by the linear PID controllers. Hence, an attempt is made here to adapt the PI controller suitable to control the conical tank by two methods namely an adaptive PI controller and neural network based PI controller, which are designed by ...

This paper proposes a new sliding surface for controlling Semi-Bridgeless Boost Converter (SBBC) which simultaneously performs Power Factor Correction (PFC) and DC bus regulation. The proposed is composed of three terms: First, normalized voltage error term controls the rejects disturbances. In this case, normalization was performed increasing system robustness during start-up large Second, an ...