Damping Control Using Sub-Synchronous Current Suppressor with SSSC for DFIG Wind Turbine

Abstract

The paper describes the engineering and design of a doubly fed induction generator (DFIG), using back-to-back PWM voltage-source converters in the rotor circuit. A vector-control scheme for the supply-side PWM converter results in independent control of active and reactive power drawn from the supply, while ensuring sinusoidal supply currents. Vector control of the rotor-connected converter provides for wide speed-range operation; the vector scheme is embedded in control loops which enable optimal speed tracking for maximum energy capture from the wind. An experimental rig, which represents a 1.5 kW variable speed wind energy generation system is described, and experimental results are given that illustrate the excellent performance characteristics of the system. The paper considers a grid-connected system; a further paper will describe a stand-alone system. This paper presents a introduction and use of facts controller in wind power station for improve voltage profile damping oscillations, load ability, reduce active and reactive power losses, sub-state-of-the-art on enhancement of different performance parameters of power systems such as voltage profile, sub-synchronous resonance (SSR) problems, transient stability, and dynamic performance, by optimally placed of FACTS controllers such as TCSC, SVC, STATCOM, SSSC, UPFC, IPFC, HPFC in wind power Systems.