The Fault Ride-Through Characteristics of a Double-Fed Induction Generator Using a Dynamic Voltage Restorer with Superconducting Magnetic Energy Storage

With the prevalence of renewable energy sources such as wind power in system, analyzing fault characteristics systems composed DFIGs is becoming increasingly important. Therefore, this article analyzes, at first theoretically, a doubly fed induction generator (DFIG) during periods. It was found that current DFIG exhibited frequency offset phenomenon, which affected by depth voltage dips and can negatively impact traditional distance protection. Furthermore, method using dynamic restorer (DVR) based on superconducting magnetic storage (SMES) adopted to compensate for DFIG, mitigate DFIG. This not only achieve ride through but also significantly improve Finally, model 2.5 MW DFIG-based turbine DVR-based SMES built real-time digital simulator (RTDS) platform, simulation results showed stator be compensated rated value 0.69 kV, maintained 50 Hz These validate excellent performance achieving improving comparing multiple type faults while employing different protection methods.