Decoupled Control of Rotor Side Power Electronic Converter for Grid Connected DFIG Based Wind Energy System

Wind and solar power mechanisms are the most admired and favoured owing to the availability of their sources, and as a result, there has been a significant amount of work done on renewable power technologies in preparation for the forthcoming trend. The wind power conversion system and control technique applications on the generator for continuous power generation are the focus of this article. This article addresses a varying speed fixed frequency doubly-fed induction generator (DFIG) system for a wind-power system employing a back-to-back converter. In today's huge wind power systems, the DFIG is a variable-speed induction machinery that is widely utilised as a generator. It is a traditional woundrotor induction machinery with the windings of its stator are linked to the grid directly. And the rotor winding reaches the power grid through the AC-DC-AC PWM-converter. The AC-DC-AC converter typically normally composed of two separate power electronic converters, one for the rotor called rotor-side power electronic converter and one for the grid called grid side power electronic converter. In this paper, rotor-side power electronic converter are controlled by a decoupled vector control scheme. To demonstrate the efficacy of the presented control scheme, the examined system is simulated for a step variation in the input torque of the DFIG using Sim Power System Simulink in MATLAB.