A Novel Modeling And Design Of Statcom With Controllable...

A Novel Modeling Design of STATCOM with Controllable grid connected Variable Speed Wind Energy Supply System Mohammad Arshad Ali P.G Scholar,Dept of Electrical and Electronics Engineering SRKR Engineering College Bhimavaram, India. Arshad6786@gmail.com ABSTRACT In the grid new renewable resources are added to extract more power. This adds more power quality issues to grid connection. A Power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency that results in a failure or a mis-operation of end user equipment. This paper investigates the use of a static synchronous compensator (STATCOM) is connected at a point of common coupling with Battery Energy Storage System(BESS)to overcome of a power quality issues of a wind farm equipped with variable speed wind turbines driving Double – Fed Induction Generators (DFIG). A physical control scheme, including four control loops: ac voltage, dc voltage, ac active current and ac reactive current controllers, is pre-specified for the STATCOM. A synthetic algorithm is proposed to embed these physical control loops in the output feedback path. The simulation results demonstrated that under various system disturbances, the proposed mode decoupling STATCOM is effec tive in regulating IG terminal voltage. INTRODUCTION The conventional energy sources such as oil, natural gas, coal, or nuclear are finite and generate pollution. Alternatively, the renewable energy sources like wind, fuel cell, solar,