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The Doubly-fed Induction Generator (DFIG) is capable of operation in regions with varying speeds. The need for DFIG systems that supply energy to isolated loads while being powered by wind turbines at... varied speeds is growing, and more studies are being done on the without grid mode i.e. Standalone mode. The DFIG's terminal bus in stand-alone mode is linked to an isolated load, and the control strategy regulates the voltage and frequency of the scaled value. There haven't been many investigations on tying the DFIG to the DC grid. However, there are still some issues with it. Large torque oscillations are one of the issues. It is caused by the nonlinear diodes connected at the stator side of DFIG. To overcome this issue, many control techniques have been proposed and developed. Among various control techniques, direct torque control (DTC) is a very popular and effective technique that is widely used. In this article, model predictive control (MPC) is integrated into a standalone DFIG to evaluate the system's performance. On the stator side of the DFIG, the MPC control approach is used, and on the rotor side, the voltage control technique. The proposed MPC-based standalone DFIG has been designed and verified in the MATLAB/Simulink environment. The results obtained are presented in this paper which shows the enhancement in the system. The value of the speed is 147 rad/sec and the electromagnetic torque is of the value of 2N-m the reference value and the obtained value are tracking each other.続きを見る
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