Low Voltage Ride through Capability Improvement of Dfig Based Wind Turbine Using Statcom
نویسندگان
چکیده
This paper studies a control strategy to improve low voltage ride through (LVRT) capability of doubly fed induction generator (DFIG)-based wind turbine (WT). This solution is based on the DFIG with Crowbar circuit control and the installation of STATCOM which is connected at the point of common coupling (PCC). The simulation model of WTs with STATCOM is built using the environment MATLAB/Simulink. The results show that this solution can reduce the peak values of rotor and stator current, minimize the fluctuations of DC voltage and electromagnetic torque, and produce reactive power to support the grid during voltage sags in order to improve LVRT of DFIG. As result, the WT remains connected to the grid for a longer time and the stability of power grid is improved, thus responding to the requirements of the grid codes without much trouble and without making any damage to the equipments of the WT.
منابع مشابه
Fault Ride through Capability Improvement of Wind Turbine Based DFIG Considering an Optimized Crowbar Along with STATCOM under Grid Fault Condition
Grid disturbances, especially grid faults, have very unfavorable effect on the performance of wind turbine based Doubly Fed Induction Generator (DFIG). In this study active and reactive powers control of DFIG with STATCOM has been carried out to improve Fault Ride Through (FRT) capability of a wind turbine. In order to excel improvement of the DFIG behavior under grid fault disturbances, an opt...
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