Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)
- Volume 3 Issue 4
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- Pages.907-914
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- 1999
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- 2234-4772(pISSN)
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- 2288-4165(eISSN)
A Study on Model Identification of Electro-Hydraulic Servo Systems
전기-유압 서보 시스템의 모델규명에 관한 연구
Abstract
This paper studies on the model identification of electro-hydraulic servo systems, which are composed of servo valves, double-rod cylinder and load mass. The identified plant is described as a discrete-time ARX or ARMAX model which is respectively obtained from the identification algorithms of least square error method, instrumental variable method and prediction error method. where a nominal model and the variation of model parameters are quantitatively evaluated.
Keywords
- electro-hydraulic servo system;
- model identification;
- ARX or ARMAX model;
- least square error method;
- instrumental variable method;
- prediction error method.