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This paper proposes a low voltage ride through (LVRT) scheme for the permanent magnet synchronous generator (PMSG) variable speed wind energy conversion system (WECS) at the grid faults to follow the requirements defined by the grid codes. The dc-link voltage is controlled by the machine-side converter instead of the grid-side converter. Taking into consideration the nonlinear relationship between...
The objective of this paper is to compare the robustness performance of continuous time periodic controller with conventional non-linear sliding mode controller (SMC) for a highly non-linear system cart-inverted pendulum. The goal is to determine which control strategy delivers better performance to pendulum's angle and cart's position. It is observed that although both the controllers are capable...
The objective of the present work is the global stabilization of a cart-pendulum system. First, an energy shaping algorithm is developed to bring up the pendulum to the close vicinity of its upright equilibrium point. The energy control technique employed here also takes care of the practical constraint of limited cart track length. Next, a sliding mode controller (SMC) does the task of keeping the...
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