Title :
Analysis of two types of pulsewidth modulated electrohydraulic control systems
Author :
Bottura, C.P. ; Burian, Y. ; Palhares, A.G.B.
Author_Institution :
Universidade Estadual de Campinas, S??o Paulo, Brasil
Abstract :
Non linearities effects can be reduced through the introduction of pulsewidth modulation, even for systems with simple and innacurate electrohydraulic servovalves. In this paper, a method of analysis of systems with PWM using two types of sampling, uniform and natural, is presented. Through the method of point transformation, mathematical models are established as explicit or implicit recurrent non-linear second order equations, and the corresponding double point local stability is studied for both cases of sampling.
Keywords :
Control systems; Electrohydraulics; Linearity; Mathematical model; Nonlinear equations; Pulse modulation; Pulse width modulation; Sampling methods; Space vector pulse width modulation; Stability;
Conference_Titel :
Decision and Control including the 16th Symposium on Adaptive Processes and A Special Symposium on Fuzzy Set Theory and Applications, 1977 IEEE Conference on
Conference_Location :
New Orleans, LA, USA
DOI :
10.1109/CDC.1977.271711
