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Induction motors are characterized by complex, highly non-linear and time-varying dynamics and inaccessibility of some states and outputs for measurements. Hence, it can be considered as a challenging engineering problem.
In this article, we introduce the development of a robust control adaptive system for an induction motor drives and fuzzy logic adapter to the rotor time constant estimation is proposed. We develop and combine the model reference adaptive system (MRAS) method with fuzzy logic approach to achieve our objectives. Two main objectives are covered; the first aim is to study and develop a speed control...
This paper deals with DC-DC converters modeling and behavior description. Our main purpose is to describe accurately the DC-DC converters behavior based on Fibonacci-Horner decomposition theorem. The proposed model has the same performances as the detailed model with less computing time/data size and without neither simplifying hypothesis nor validity conditions. The obtained model is validated through...
Sliding mode control (SMC) is well known for its robustness and efficiency to deal with a wide range of control problems with nonlinear dynamics such as DC-DC power converters. In this paper, an optimized and fixed switching frequency sliding-mode policy for controlling DC-DC converters is proposed. There are two main contributions, in this paper; in the first we give a comprehensive proof of the...
The aim of this paper consists of presenting a new approach to control an induction motor using type-1 fuzzy logic. The induction motor has a nonlinear model, uncertain and strongly coupled. The vector control technique, which is based on the inverse model of the induction motors, solves the coupling problem. Unfortunately, in practice this is not checked because of uncertainties in the model. Indeed,...
This work presents the influence of the irradiance intensity level on different parameters (ideality factor, saturation current, series resistance, shunt resistance…) of polycrystalline silicon solar cells. I-V characteristics of these cells were plotted with measurements done at room temperature, and were modeled using the single diode model. We find that the short circuit current, the photocurrent...
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