Robust closed-loop control design for spacecraft slew maneuver using thrusters

1995 ◽  
Vol 18 (6) ◽  
pp. 1336-1344 ◽  
Author(s):  
Brij N. Agrawal ◽  
Hyochoong Bang
Keyword(s):  
Closed Loop ◽  
Control Design ◽  
Closed Loop Control ◽  
Loop Control

Closed-loop Control Design for a New Multi-input Multi-output DC/DC Converter

2021 ◽  
Author(s):  
Ran Li ◽  
Xinan Zhang ◽  
Herbert Iu ◽  
Tat Kei Chau ◽  
Yulin Liu
Keyword(s):  
Closed Loop ◽  
Control Design ◽  
Closed Loop Control ◽  
Loop Control

Closed loop control design for the sense mode of micromachined vibratory gyroscopes

2013 ◽  
Vol 56 (5) ◽  
pp. 1112-1118 ◽  
Author(s):  
ChunHua He ◽  
QianCheng Zhao ◽  
YuXian Liu ◽  
ZhenChuan Yang ◽  
GuiZhen Yan
Keyword(s):  
Closed Loop ◽  
Control Design ◽  
Closed Loop Control ◽  
Sense Mode ◽  
Loop Control ◽  
Vibratory Gyroscopes

Nonlinear Model-Based Controller Design for a Hydraulic Rack and Pinion Gear Actuator

2018 ◽  
Author(s):  
Pauli Mustalahti ◽  
Jouni Mattila
Keyword(s):  
Closed Loop ◽  
Controller Design ◽  
Dynamical Behavior ◽  
Control Design ◽  
Closed Loop Control ◽  
Loop Control ◽  
Hydraulic Manipulators ◽  
Pinion Gear ◽  
Hydraulic Manipulator ◽  
Heavy Loads

Hydraulic manipulators are extensively utilized to move heavy loads in many industrial tasks. In commercial applications, a manipulator base is required to rotate a motion range of the full 360°. This is usually implemented by using a hydraulic rack and pinion gear actuator. Due to the manipulator’s long reach and heavy loads, manipulator tip acceleration can produce significant torque to the rotation gear in free-space motion. Imposed by nonlinear dynamical behavior (involving, e.g., the gear backlash and actuator friction) added to high inertia, a system closed-loop control design becomes a challenging task. An advanced closed-loop control enables to increase the automation-level of hydraulic manipulators. This study designs a novel subsystem-dynamics-based controller for a hydraulic rack and pinion gear actuator utilizing the control design principles of the virtual decomposition control (VDC) approach. An adaptive backlash compensation is incorporated in the control design. Furthermore, the proposed controller is implemented in previously-designed state-of-the-art hydraulic manipulator control. The stability of the overall control design is proven. Experiments with a full-scale commercial hydraulic manipulator demonstrate the effectiveness of the proposed adaptive backlash compensation and the overall control performance.

scholarly journals Model-Based Control Design of Series Resonant Converter Based on the Discrete Time Domain Modelling Approach for DC Wind Turbine

2018 ◽  
Vol 2018 ◽  
pp. 1-18 ◽  
Author(s):  
Yu-Hsing Chen ◽  
Catalin Gabriel Dincan ◽  
Philip Kjær ◽  
Claus Leth Bak ◽  
Xiongfei Wang ◽  
...  
Keyword(s):  
Discrete Time ◽  
Time Domain ◽  
Closed Loop ◽  
Control Structure ◽  
Control Design ◽  
Closed Loop Control ◽  
Resonant Converter ◽  
Loop Control ◽  
Series Resonant ◽  
Domain Modelling

This paper focuses on the modelling of the series resonant converter proposed as a DC/DC converter for DC wind turbines. The closed-loop control design based on the discrete time domain modelling technique for the converter (named SRC#) operated in continuous-conduction mode (CCM) is investigated. To facilitate dynamic analysis and design of control structure, the design process includes derivation of linearized state-space equations, design of closed-loop control structure, and design of gain scheduling controller. The analytical results of system are verified in z-domain by comparison of circuit simulator response (in PLECS™) to changes in pulse frequency and disturbances in input and output voltages and show a good agreement. Furthermore, the test results also give enough supporting arguments to proposed control design.

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