This paper presents the design and simulation of wind farm model using doubly-fed induction generation (DFIG) techniques and MATLAB platform. To control the output active power of DFIG, the rotor flux oriented vector has been used to improve the vector control strategy instead of stator flux oriented vector control. The rotor flux control technique provide better power tracking accuracy compared with traditional technique represented by stator flux vector control methods. The performance of DFIG under various wind farm grid disturbance has been evaluated and examined in this work. To overcome the stability of voltage in transmission system device, the implementation of dynamic reactive power compensators is used at the tip of ordinary combination to improve the DFIG during disturbances. This includes static VAR and synchronous compensators to improve the transient performance and keeping the turbine in services during the faults of grid. In term of time response, amount of reactive power injection and the cost of applications, the performance of both techniques has been compared and investigated. The suggested solution of integration between energy storage and GFIG grid connection shows better smoothing in the output power during wind rate variation. In addition, the principle of wind farm under twice fed asynchronous generation is connect through 3-phase converter type AC-DC-AC to the network and rotor.
Design and Simulation of Wind Farm Model Using Doubly-Fed Induction Generator Techniques