Guía para el desarrollo de modelos de simulación en ATP para estudios de coordinación de aislamiento en sistemas tipo II..

Abstract

The simulation of electromagnetic transients in an electrical power system is a fundamental aspect for studies in the design of electrical systems. The knowledge of aspects to be considered as solution techniques, selection of parameters and guidelines for modeling, allow to determine the overvoltages that the equipment could support and develop a correct coordination of insulation. In the present degree project, simulation models were developed using ATP software version 7.0, according to the guidelines indicated by IEC 60071-1 and IEC 60071-2 standards for range II systems. The procedure for configuring and assembling models was detailed based on recommendations from technical articles and recommendations were established on the parameterization criteria of system elements.

The overvoltages produced by maneuvers in a system were determined by means of a statistical analysis. In the same way, the modeling for atmospheric discharges corresponding to fast-front overvoltages was carried out. Finally, examples of application of the isolation coordination methodology proposed by IEC 60071-1 and IEC 60071-2 standards were described, using the simplified statistical method for the case of slow-front overvoltage and the deterministic method for the case of fast-front overvoltage.