Conclusions and Suggestions for Future Work
摘要
Wind power is expected to be the major renewable source of electrical energy shortly, which makes studying the protection of wind energy systems and the interaction between wind turbines and the grid necessary and urgent. This chapter focuses on conclusions and suggestions for future work to improve the protection of the Egyptian power grid connected to the Al-Zafarana Egypt wind system. Al-Zafarana’s fifth stage was selected as a simulation example in this work. The doubly fed induction generator (DFIG)-based wind farm has gained prominence due to its many advantages. Therefore, enhancing low-voltage ride-through (LVRT) capabilities is a significant factor in maintaining the DFIG-based wind farm in operation during grid faults and disturbances. Thus, in this chapter, a thorough discussion of the recently emerged LVRT techniques for DFIG-wind turbines (WTs) has been presented. LVRT techniques can be separated into two categories: (1) exterior LVRT techniques (protection-based, flexible alternating current transmission system (FACTS)-based, and hybrid techniques) and (2) interior LVRT techniques like control strategies-based techniques. Also, this chapter introduces the negative impacts of grid faults in DFIG-based wind turbine systems; the dynamic behavior of DFIG under symmetrical and asymmetrical grid faults was simulated using MATLAB/Simulink.