TY - SER AU - Soliman, Mahmoud A. AU - Hasanien, Hany M. AU - Al-Durra, Ahmed AU - Alghuwainem, Saad TI - Symbiotic Organisms Search Algorithm-Based Optimal Control Strategy for Efficient Operation of Variable-Speed Wind Generators KW - Wind Turbine Generators (Wtgs) KW - Penetration Rate KW - Grid-Tied Microgrid ER -