Improvement of Voltage Stability and Critical Clearing Time
Project ReportOnImprovement of Voltage Stability and Critical Clearing Time for Multi-machine Power Systems Using Static VAR CompensatorSubmitted in the partial fulfillment of the requirement for the award of degree ofBachelor of TechnologyInElectrical Engineering[pic 1]Under the Guidance ofMiss Ranjita ChowdhurySubmitted bySayandeep Mondal 071080116083Department of Electrical Engineering ASANSOL ENGINEERING COLLEGEAsansol – 713304, West Bengal (India)CertificateCertified that this project entitled “Improvement of Voltage Stability and Critical Clearing Time for Multi-machine Power Systems Using Static VAR Compensator” submitted by Sayandeep Mondal (071080116083), a student of Electrical Engineering Department, Asansol Engineering College, Asansol in the partial fulfillment of the requirement for the award of Bachelors of Technology (Electrical Engineering) Degree of WBUT, West Bengal, is a record of students own study carried under my supervision & guidance.
This report has not been submitted to any other university or institution for the award of any degree.Ms. Ranjita ChowdhuryProject GuideDr. J. MahatoHead, Electrical engineering Deptt.ACKNOWLEDGEMENTProject is a very important part in the student life of an engineering student. After duration of one year we had completed our final year project successfully which is basically based on electrical power system.We are heartily thankful to our project guide “Ms. Ranjita chowdhury” who helped us in every step for the successful completion of our project.We also sincerely acknowledge the guidance of our project guide during the documentation of the project. CONTENTS Introduction 3 About the Project 4 Concepts of Voltage Stability 5-10 Classification Mechanism of Voltage Collapse Dependence of Voltage on Variation of -reactive power P-V & Q-V CurveSwing Equations 11Swing Curve 13Load Flow Studies 14-25 Load Flow Method Newton –Raphson Method Calculation of Jacobian Matrix Elements Flowchart of Newton-Raphson Method7. Weakest Bus Assessment 268. Static VAR Compensator 279. Basic Circuit Diagram 28