Computer-aided Control Algorithm Design

1991 ◽  
pp. 266-291
Author(s):  
Rolf Isermann
Keyword(s):  
Control Algorithm ◽  
Algorithm Design ◽  
Computer Aided

scholarly journals Design of Satellite Attitude Control Algorithm Based on the SDRE Method Using Gas Jets and Reaction Wheels

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Luiz C. G. de Souza ◽  
Victor M. R. Arena
Keyword(s):  
Attitude Control ◽  
Control Algorithm ◽  
Controller Design ◽  
Algorithm Design ◽  
Large Angle ◽  
Space Mission ◽  
Control Technique ◽  
Gas Jets ◽  
State Dependent ◽  
Highly Nonlinear

An experimental attitude control algorithm design using prototypes can minimize space mission costs by reducing the number of errors transmitted to the next phase of the project. The Space Mechanics and Control Division (DMC) of INPE is constructing a 3D simulator to supply the conditions for implementing and testing satellite control hardware and software. Satellite large angle maneuver makes the plant highly nonlinear and if the parameters of the system are not well determined, the plant can also present some level of uncertainty. As a result, controller designed by a linear control technique can have its performance and robustness degraded. In this paper the standard LQR linear controller and the SDRE controller associated with an SDRE filter are applied to design a controller for a nonlinear plant. The plant is similar to the DMC 3D satellite simulator where the unstructured uncertainties of the system are represented by process and measurements noise. In the sequel the State-Dependent Riccati Equation (SDRE) method is used to design and test an attitude control algorithm based on gas jets and reaction wheel torques to perform large angle maneuver in three axes. The SDRE controller design takes into account the effects of the plant nonlinearities and system noise which represents uncertainty. The SDRE controller performance and robustness are tested during the transition phase from angular velocity reductions to normal mode of operation with stringent pointing accuracy using a switching control algorithm based on minimum system energy. This work serves to validate the numerical simulator model and to verify the functionality of the control algorithm designed by the SDRE method.

scholarly journals Study on dynamic characteristics and control algorithm design for fuel metering valve of high-pressure pump

2018 ◽  
Vol 51 (31) ◽  
pp. 930-935
Author(s):  
Yi Lu ◽  
Zhe Zuo ◽  
Changlu Zhao ◽  
Fujun Zhang ◽  
Meng Du
Keyword(s):  
High Pressure ◽  
Dynamic Characteristics ◽  
Control Algorithm ◽  
Algorithm Design ◽  
High Pressure Pump ◽  
Pressure Pump ◽  
And Control

scholarly journals A high-performance neural prosthesis enabled by control algorithm design

2012 ◽  
Vol 15 (12) ◽  
pp. 1752-1757 ◽  
Author(s):  
Vikash Gilja ◽  
Paul Nuyujukian ◽  
Cindy A Chestek ◽  
John P Cunningham ◽  
Byron M Yu ◽  
...  
Keyword(s):  
High Performance ◽  
Control Algorithm ◽  
Algorithm Design ◽  
Neural Prosthesis
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