IJSRSET1621134 | Received: 24 February 2016 | Accepted: 29 February 2016 | January-February 2016 [(2)1: 490-496] © 2016 IJSRSET | Volume 2 | Issue 1 | Print ISSN : 2395-1990 | Online ISSN : 2394-4099 Themed Section: Engineering and Technology 490 DFIG for Wind Energy Generation Using Stator Voltage Orientation Control – A Review Mariya Alvi*, Rakesh Sharma Department of Electrical Engineering, BBDU, Lucknow, Uttar Pradesh, India ABSTRACT Now a days as one of the most important renewable source of energy is wind energy that is gaining interest due to its ecofriendly nature. This paper is about the study on control of wind driven doubly fed induction generator. A converter setup that is back to back PWM with stator voltage oriented vector control is used to control the DFIG. The back to back PWM converter set up consists of the Rotor Side Converter and the Grid Side Converter with intermediate DC link. Decoupled control of the DC link voltage and the grid reactive power is obtained through Voltage oriented control of GSC. Similarly independent control of power from wind and reactive power of DFIG is carried out by stator voltage oriented vector control of RSC. Coordinated control of the back to back converter setup in both sub synchronous and super synchronous mode is presented. Keywords : DFIG, stator voltage orientation control scheme, rotor side converter, grid side converter, decoupled control. I. INTRODUCTION Wind energy have been attracting great attention due to the cost increase, limited reserves, and adverse environmental impact of fuel such as coal, oil, or natural gas. In the meantime, technological advancements, cost reduction, and governmental motive have made some renewable energy sources more desiring in the market. Among them, wind energy is the fastest growing renewable energy sources. Over the past two decades a variety of wind power technologies have been developed, which have improve the conversion efficiency reduced the costs for wind energy production. A wind energy conversion system transforms wind kinetic energy to mechanical energy by using rotor blades; this energy is then transformed into electrical energy by generator. The DFIG is essentially a wound rotor in induction generator in which the rotor circuit is controlled by external devices to achieve variable speed operation. In [1] that summaries the researches in the area of study of doubly fed induction generator and its steady state and transient analysis, and the modeling, simulation, active reactive power control strategies and performance analysis of doubly fed induction generator coupled with wind turbine. The response of DFIG wind turbine system to grid disturbances, which is simulated and verified experimentally, is overviewed here. The behavior of DFIG wind turbine system for different faults is also overviewed in this paper. In [2] the paper is about to design doubly fed induction generator and to control the active and reactive powers by providing the proper rotor voltage to the doubly fed induction generator that is derived from PI controller for maintain the constant terminal voltage. The mathematical model of the machine written in an appropriate d-q reference frame is established to investigate simulations. In [3] that deal with the operation of doubly fed induction generator (DFIG) with integrated active filter capabilities using grid side converter (GSC). The main contribution of this work lies in the control of grid side converter for providing harmonics in addition to its slip power transfer. In [4] performance is investigated in a