Transient analysis of an advanced static var compensator using quad-series voltage-source PAM inverters

✍ Scribed by Shinji Tominaga; Hideaki Fujita; Hirofumi Akagi

• Book ID: 102824825
• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 767 KB
• Volume: 117
• Category: Article
• ISSN: 0424-7760
• DOI: 10.1002/eej.4391170209

✦ Synopsis

This paper deals with an advanced static Var compensator (ASVC) using quad-series voltage-source PAM inverters. The ASVC consists of four three-phase voltage-source inverters with a common dc capacitor and which is connected in series with each other. Each inverter outputs a square-wave voltage, while the synthesized output voltage of the ASVC has a 24-step wave shape. This results not only in a great reduction of harmonic currents and dc voltage ripples but also in fewer switching and snubbing losses.

four t h r e -p h w transforma, each primary winding of In this paper, transient analysis is performed with the focus on the response of reactive power and the resonance between the dc capacitor and ac reactors. Experimental results obtained from a small-rated laboratory model of 10 kVA are also shown to verify analytical results based on the p q transformation. The analytical results help in the design of system parameters such as the capacity of the dc capacitor and feedback gains.