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This paper describes a second-order sliding mode control for a permanent magnet synchronous generator-based marine current turbine dealing with the generator-side converter faulty conditions. Marine turbine system mainly used PI controllers. However, this type of controllers is unfortunately very sensitive to faulty conditions as those affect the system converter. In this faulty context, the marine...
The field oriented control (FOC) can provide the same performance as is achieved from a separately excited DC motor. However, this technique requires the mechanic sensor to determine correctly the orientation of the rotor flux vector and is very sensitive to the variation of motor parameters, results in an undesirable coupling between the flux and the torque of the machine, and loss of dynamic performance...
This paper deals with the design of a Model Predictive Control (MPC) approach for the altitude and attitude stabilization and tracking of a Quad Tilt Wing (QTW) type of Unmanned Aerial Vehicles (UAVs). This Vertical Take-Off and Landing (VTOL) aircraft can take-off and landing vertically such as helicopters and is convertible to the fixed-wing configuration for horizontal flight using a tilting mechanism...
This paper presents a rotor bars Modeling. The rotor of an Electrical asynchronous machine is modeled by an equivalent electrical diagram related to the squirrel-cage connected together electrically and coupled magnetically, the frequencies characteristics of fault break bars. An intelligent strategy was adopted for fault detection in rotor using the map SOM (Self Organizing Map). It involves the...
This paper presents a review of two Maximum Power Point Tracking (MPPT) methods used in order to extracting maximum possible power from the wind energy conversion systems based on doubly fed induction generator. These two methods are namely tip speed ratio (TSR) control and hill-climb search (HCS) control. The control of the doubly-fed induction generator is based on direct power control for wind...
This paper proposes a new analytical model for mechanical fault detection in induction motors. Rolling bearing fault has an important percentage compared to others. Most research works focus on rolling bearing faults analysis, the originality of our study relies on the preparation of a new simulated model under rolling bearing faults. First of all, the calculation of the mutual inductances between...
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