Compact Hinfinity robust rebalance loop controller design for a micromachined electrostatically suspended gyroscope.
In this paper, we design a compact H(infinity) robust rebalance loop controller that is featured with comprehensive performance achievement and relatively easy practical implementation for a dual-axis micromachined rotational gyro. By incorporating the bilinear pole-shifting transform into the weighted multivariable mixed-sensitivity framework, the design procedure of the robust controller is able to allow for various realistic performance requirements in terms of steady-state error, dynamic response characteristics, disturbance rejection and robustness to parametric variations. In comparison with a conventional decentralized lead-lag controller, the H(infinity) robust controller, which is considered as an efficient substitute for the former, is thoroughly analyzed and simulationally validated under a set of realistic scenarios.
Ma
Gaoyin
G
National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Institute of Micro and Nano Science and Technology, Shanghai Jiao Tong University, Shanghai, 200240, China.
Chen
Wenyuan
W
Zhang
Weiping
W
Cui
Feng
F
Li
Kai
K
D000465:Algorithms; D004867:Equipment Design; D008838:Microcomputers; D015233:Models, Statistical; D036103:Nanotechnology