Vibration Tracking Control of Piezoelectric Bimorph Bender in Novel Reciprocal State Space Form

2018 International Conference on Smart Materials Applications

Tseng, Yuan-Wei^1 ; Wu, Rong-Ching^1 ; Tsai, Chia-Chuan^1

Dept. of Electrical Engineering, I-Shou University, Kaohsiung City, Taiwan^1

关键词: Augmented systems;    Derivative signals;    Design approaches;    Estimated state;    Piezoelectric bimorphs;    Reciprocal state spaces;    Reference command;    Tracking controls;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/422/1/012024/pdf
DOI  :  10.1088/1757-899X/422/1/012024

来源: IOP

【 摘 要 】

In this paper, the deflection of a piezoelectric bimorph bender is controlled to track given time varying reference command solely utilizing direct acceleration measurement without integration. Novel estimator that directly applies acceleration measurement and controller that applies estimated state derivative signals have been developed in reciprocal state space (RSS) form. Simulations for the augmented system of both closed loop system and estimator have been carried out to successfully verify the proposed methods. The design approach in this paper is applicable to smart structures with accelerometers as sensors.