arXiv subjects
Publications and source records attributed to W. Vargas.
In this paper, we introduce the concept of S-expansiveness for local homeomorphisms and demonstrate that a class of extended symbolic dynamics, known as zip shift maps, are S-expansive and possess the shadowing property. Furthermore, we prove that any S-expansive local homeomorphism is a factor of a zip shift map.
In this paper, a methodology for modelling a dynamic equivalent of an external area is presented. The equivalent consists of a generator with series impedance and a parallel load (generalized Ward equivalent), integrating control systems such as the Automatic Voltage Regulator (AVR) and the Speed Regulator (GOV) in a test system known as PST-16. The main objective is to identify the parameters of the control systems and other parameters inherent to the generator so that the response of the equivalent system is similar to the response of the complete system.