Identification Of Electro-Hydraulic Actuator Using Fractional Model
Data publikacji: 01 mar 2016
Zakres stron: 32 - 48
Otrzymano: 15 paź 2016
Przyjęty: 16 sty 2016
DOI: https://doi.org/10.21307/ijssis-2017-858
Słowa kluczowe
© 2016 Nuzaihan Mhd Yusof et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Electro-hydraulic actuator (EHA system) identification is to describe the characteristic of the system that useful for prediction or control system design. There are numerous methods of EHA modeling but there has not been much model using fractional-order (FO) model. In this work, integer-order (IO) model and FO model are developed to model EHA system. Output-error method is used as the estimator for both model. The coefficient of IO model was first estimated and using the estimated coefficient, the derivative order of FO model is estimated. These models has been validated by comparison of error, coefficient of determination (R2), mean square error (MSE) and correlation function. The results for the proposed model show improvement compared to the IO model.