Lithium Titanate battery-based frequency modulation control strategy for doubly fed induction generator

Abstract This paper proposes a Lithium Titanate battery-based primary frequency regulation strategy for doubly fed induction generators to solve the problems of decrease in power generation efficiency and an increase turbine losses under traditional over-speed load shedding control strategy. A stator voltage orientation-based dual closed-loop vector system is designed PWM rotor converter. grid voltage-oriented adopted converter maintain stability DC bus voltage. To enable single generator have capability, energy storage device installed on improve unit. Modeling analysis Matlab/Simulink verify that proposed not only ensures economic benefits generator’s electricity but also enables good capability.