パラメータの不確かさを有するアクチュエータを用いたモデルフリー振動制御

抄録

Designing an active vibration control system generally requires the mathematical model of target structures. The control performances sometimes get worse due to modeling errors and aging of target structures. In addition, actuators have parameter uncertainty due to aging and individual differences. Therefore, the actuator uncertainty causes destabilization of the control system and deterioration of the performance. This study proposes the vibration control method, in which a controller designed without using the model of target structures for arbitrary structures considering actuator uncertainty. First, we introduced a virtual controlled object, which is a SDOF system, for control system design and construct a state equation consisting of only the actuator and virtual structure, not using the model of target structure. Next, the actuator uncertainty is compensated by H_∞ controller and sliding mode controller. Finally, the effectiveness of the proposed method is demonstrated by simulations.