《《Ar compensator using three-level IGBT inverter》.pdf

PERFORMANCE ANALYSIS OF ADVANCED STATIC VAR COMPENSATOR USING THREE-LEVEL IGBT INVERTER A.Draou member EEE, M. Benghanem, A. Tahri Applied Power Electronics Laboratory, Institute of Electrotechnics, University of Sciences and Technology of Oran, BP 1505El Mnaouar (31000 Oran),ALGERIA. Tel :+2 13-6-422377, Fax:+:! 1 3 4 4 2158 1 Email : adraou@ or draou@mail.univ-usto. Abstract - This paper presents a modelling and a study of made up of twelve power IGBTs with antiparalleldiodes, the dynamic performance analysis of an Advanced Static which is connected to the three-phase supply through a Var Compensator (ASVC) using three-level voltage reactor, X, of small value. Two capacitors are connected source inverter. to the dc side of the converter. The analysis is based on the modelling of the system in The structure of one leg of the inverter itself is made up the d q axis. of four pairs of diode-IGBT forming a switch and two The dynamic behaviour of the system is further analysed diodes allowing to have the zero level point of the using MATLAB through a set of simulation tests. inverter output voltage. The results obtained may lead to correct design of a robust controller for reactive power applications. I. INTRODUCTION The fast growing development of ultra rapid power switching devices and the desire to reduce the harmonics has lead to the increase in use of c