Optimized Hybrid Energy Storage System for Synchronizing Doubly Fed Induction Generator with Enhanced Protection

The energy demand is increasing due to increase in worlds population. To compensate the energy requirement the energy generation should be increased. Renewable energy system like wind energy has emerged to be the better efficiency system compared to other renewable energy sources. Doubly fed induction generator has tremendous performance; however, the fault occurrence affects the system severely. Previously wind energy system was allowed to disconnected on the occurrence of fault. But disconnection leads to loss of significant amount of power loss. So, the system needs to stay connected during the fault scenario, making continuity of supply. This investigation focuses on maintaining the system balance during the fault occurrence. In this system a hybrid energy system confined of battery system with a supercapacitor system is designed, which provides better charging and discharging rates and meets low voltage ride-through requirements. In the current scenario, simulations are conducted using MATLAB Simulink to address issues with symmetrical and asymmetrical faults. The analysis uses a battery energy system, a conventional vector control scheme, and the proposed control scheme. The proposed control scheme shows better efficacy compared to the conventional vector control scheme and the battery energy system scheme.