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This paper describes the control of squirrel cage induction generator (SCIG) and its responses to grid voltage unbalance. The paper presents the vector control of SCIG. On the SCIG side converter, the control strategy enables the independent control of flux and electromagnetic torque. On the grid side converter, the control strategy is implemented to regulate the DC voltage and the reactive power...
This work presents an experimental evaluation based on DSP of Combined Vector Control and Direct Torque Control strategy. This strategy permits to control torque and flux by controlling the stator current and by using a switching Table instead of PI controllers. This Control combine the characteristics of both Direct Torque Control and Vector Control to provide high dynamic for torque response. The...
This paper presents a control strategy of an induction machine supplied by voltage-source inverter (VSI). The induction machine with the control strategy should provide, at the constraining requests, a response with high performances in electromagnetic torque and speed. This work aims to demonstrate the contribution of Fuzzy logic in the direct torque and flux control (DTFC). In fact, the conventional...
In this article, we present the mathematical model of the permanent magnet synchronous motor (PMSM) permitting the simulation of its dynamic behavior under the MATLAB/SIMULINK environment. This model is based on the Park transformation. This paper proposes a realization of robust speed and current control for the PMSM using a PI-Regulator with and without a Luenberger observer. The simulation results...
This paper presents a new speed controller based on the theory of adaptive fuzzy inference system based on neural (ANFIS) for a direct torque to twelve sectors controlled of the induction motor. The proposed controller integrates fuzzy logic algorithm with a structure of artificial neural network (ANN) five-layer in order to reap the benefits of both methods, the learning abilities of the first and...
The performance of FPGA increases continually, thus in many applications they can be an interesting alternative to DSPs. The aim of this work is to present the contribution of FPGAs for electrical machines control. The features of FPGAs and their environment will be presented first. Then a detailed description of the structure by Direct Torque Control DTC of Permanent Magnet Synchronous Machine is...
This work deals with PQ state space modeling of asynchronous generator for rotor faults detection and diagnosis. Asynchronous generator is one of the mostly used machines as electrical power generator. This is due to its low cost and high reliability compared to other types of renewable energy sources. In order to ensure reliable and profitable operations, asynchronous generator must be carefully...
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