研究目的
To present a direct Sliding Mode Control (SMC) of Doubly Fed Induction Generator (DFIG) driven by wind turbine with Space Vector Modulation (SVM) inverter for tracking the stator active and reactive power their references and improving the quality of the energy generated by DFIG.
研究成果
The direct sliding mode control (SMC) of active and reactive power based on DFIG driven by wind turbine with space vector modulation (SVM) inverter has been studied and designed in Matlab/Simulink software. The SMC has been used to track the stator active and reactive power their references. The stator active and reactive powers are exchanged between the stator of the DFIG and the electrical grid by the control of the rotor inverter where the simulation results show good dynamic performances and good robustness of the proposed control. In addition, SVM technique is used for the inverter control to improve the quality of energy injected into the electrical grid, which this technique allows the minimizing of stator current harmonics and wide linear modulation range where the THD of the stator current has the value 4.38% (<5% according IEEE Std 519-1992).
研究不足
The presence of the oscillations produced by the chattering phenomena of the SMC.
