Predictive Functional Control of a Table Drive System Using Disturbance Observer and Preview Feedforward Controller

Abstract:

This paper addresses a two-degree-of-freedom control system design for positioning de-vices such as table drive systems based on the predictive functional control (PFC). The aim of the paper is to improve the tracking performance of the previously developed disturbance observer-based predictive functional control (DOB-PFC) system. To this end, we derive a transfer function representation of the PFC controller. On the basis of the representation, we apply the zero phase error tracking controller (ZPETC) as a feedforward preview controller. Experiments using a real table drive system are conducted to compare the proposed control system with DOB-PFC. The experimental results show that the tracking error is greatly reduced compared to DOB-PFC.

• Periodical: Applied Mechanics and Materials (Volumes 789-790)
• Pages: 995-1004
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.789-790.995
• Online since: September 2015
• Authors: Toshiyuki Satoh*, Hiroki Hara, Taishi Sogawa, Naoki Saito, Jun Ya Nagase, Norihiko Saga
• Keywords: Disturbance Observer, Feedforward, Model Predictive Control, Predictive Functional Control, Preview Control, Table Drive System, Zero Phase Error Tracking Control

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