Using polytopic uncertainty to model linearization errors for hydraulic actuator position control

摘要: The objective of this paper is to study an electro-hydraulic servo system (EHSS) with the task position control, giving special attention its uncertainty representation. For purpose, first, nonlinear equations EHSS are derived. It shown that uncertain linear model can be derived from model, capturing nonlinearity in form polytopic uncertainty. Special given reducing conservativeness approach. resulting used synthesize output-feedback H∞ controller for using a Linear Matrix Inequality (LMI)-based effectiveness method demonstrated after providing simulation and experimental results.