A Stand--Alone Quantized State System Solver. Part I

JOAQUIN FERNANDEZ; ERNESTO KOFMAN

Bariloche

Conferencia; XV Workshop on Information Processing and Control; 2013

This article introduces a stand--alone implementation of the Quantized State System (QSS) methods for continuous and hybrid system simula-tion. QSS methods replace the time discretization of classic numerical integration by the quantization of the state variables, leading to discrete event approximations that show some advantages over classic numerical integration schemes. For simplicity reasons, previous implementations of QSS methods were confined to discrete event simulation engines, which deteriorated the efficience of the algorithms wasting most of the computational load in internal synchronization mechanisms. The QSS solver presented here overcomes this problem, improving in more than one order of magnitude the computation times of previous implementations. The first part of this work describes the solverstructure and functionality and compares the performance of the new solver with a discrete event implementation, and also with different classic solvers in three benchmark problems.