Flexible approach to dynamic simulation of voltage collapse phenomenon

✍ Scribed by N. Rajakovic; D. Tasic

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 506 KB
• Volume: 7
• Category: Article
• ISSN: 1430-144X
• DOI: 10.1002/etep.4450070308

✦ Synopsis

This paper presents the dynamic sirnulation of voltage collapse phenomenon in a flexible manner concerning modelling complexity. In that respect a special attention has been paid to modelling aspects of induction motor as a representative of variety of loads. A complete mathematical model used in this paper f o r the study of dynamic behaviour of an induction motor consists offive differential equations. This set of equations is solved by using the Runge-Kutta method. As a parallel model a simplified approach is considered (without differential equations) reduced to algebraic network equations and the equation of motion. The efSect of transformers equipped with automatic under load tap changers is d s o simultrted. The complete model is rigorous enough in order to calculate the precise voltage-time and P-U curves during the induction motor start-up procedure, while the simplified model can be irsedfor calculation of P-U curves on!.. Results from this study can be used for real-time svstem control cictions and for induction motor relav settings.