Disturbance Suppression Controller for Discrete-Time LPV Systems with Digital Computers

2014 Fiscal Year Final Research Report

• Project/Area Number: 23760398
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Control engineering
• Research Institution: Japan Aerospace Exploration Agency
• Principal Investigator: SATO Masayuki 独立行政法人宇宙航空研究開発機構, 航空本部, 主任研究員 (90358648)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: ゲインスケジューリング制御 / 飛行制御 / 飛行試験

Outline of Final Research Achievements

We develop a design method of discrete-time Gain-Scheduled (GS) controllers using inexactly provided scheduling parameters for discrete-time Linear Parameter-Varying (LPV) systems, and extend the method to the case in which multiple uncertainty blocks exist for applicability improvement.
We designed GS controllers, which realize disturbance suppression and model-matching for a certain model, for the lateral-directional motions of an experimental aircraft by using our method and a conventional method, and compared their performances with a posteriori analysis and flight tests. It was confirmed in the a posteriori analysis as well as flight tests that the GS controller designed with the conventional method does not guarantee the control performance assured in its design due to the inaccuracy of the scheduling parameter; however, the GS controller designed with our method guarantees the control performance assured in its design. These properties illustrate the usefulness of our method.

Free Research Field

制御理論