Desarrollo de una metodología multimáquina para la ubicación y sintonización de estabilizadores de sistemas de potencia de forma automática

Abstract

This paper presents an integral and comprehensive methodology based on multimachine criteria which will automatically allow to locate and tune Power System Stabilizers (PSSs), in order to help solving the problem of oscillatory stability in any power system, due to the presence of poor-damped or negatively damped modes. This can be achieved with the development of program-like applications within the technological tool DIgSILENT PowerFactory (DPL scripts). The developed application brings together several routines such as power flows, small signal stability by using the Modal Analysis method, Optimization and Tuning of variables in control systems for any electrical network, exploiting DIgSILENT PowerFactory’s computing power for handling large and complex matrices in electrical grids and its programming versatility through DIgSILENT Programming Language (DPL). This application, besides dealing with a multimachine concept, is also characterized for performing multi-scenario analyses, which prevents having different PSS settings for each time of the day, i.e. the application yields one tuning result alone for each PSS, regardless of the number of scenarios considered by the user