DFIG Based Wind Farm Intergrated Power System Using STATCOM and SVC Design and Analysis

Abstract

ABSTRACT newlineThe stability of the control grid is a critical prerequisite for a safe and efficient newlinepower system service. A thorough knowledge of the effects of the power system newlinevolatility is essential for the effective study and control of power systems. Now days the newlineelectrical energy demand is increases rapidly but our conventional energy resources are newlinelimited due to their insufficient availability. Therefore, a large amount of energy derived newlinefrom non-conventional energy resources. The overall cost of wind energy conversion newlinesystem has become competitive with other energy conversion systems due to lot off newlinedevelopment in wind DFIG and power electronic devices. Doubly-Fed Induction newlineGenerator (DFIG) wind turbine concept is the most popular generator concept for wind newlineenergy conversion system. newlineFirst part of research presents the transient stability enhance of DFIG-based newlineoffshore wind farm connected power system network using STATCOM. The studied newlinesystem is simulated in MATLAB/Simulink platform for study the effect of transient newlinedisturbances like, three phases to ground fault, sudden load change, voltage sag and swell. newlineComparative study of dynamic performances for FACTS devices like newlineSTATCOM and SVC is performed in second part of research. These devices are newlineintegrated to stabilize WF connected with multi-machine power system (WFMPS). For newlinecontrolling FACTS devices to enhance WFMPS performance under different unwanted newlineor faulty conditions Fuzzy logic controller FLC) has been used. Three-phase to ground newlineshort circuit fault has been given in different locations of system. The Modelling and newlinesimulation of WFMPS is performed on MATLAB/SIMULINK. The result so obtained newlinegives the effect of both SVC and STATCOM-based FLC on damping the system newlineoscillations and overall improving the system power quality in the after-fault duration. newlineThe comparative analysis shows better dynamic performance and faster faults recovery newlineof STATCOM-based FLC at fault conditions in comparison with SVC-based FLC newline