Analytical control of SISO nonlinear processes with input constraints

AIChE Journal ◽  
1998 ◽  
Vol 44 (1) ◽  
pp. 116-130 ◽  
Author(s):  
Sairam Valluri ◽  
Masoud Soroush
Keyword(s):  
Analytical Control ◽  
Input Constraints ◽  
Nonlinear Processes

Stabilization of nonlinear processes with input constraints

2000 ◽  
Vol 24 (1) ◽  
pp. 9-21 ◽  
Author(s):  
Navneet Kapoor ◽  
Prodromos Daoutidis
Keyword(s):  
Input Constraints ◽  
Nonlinear Processes

scholarly journals Some New Locally Optimal Control Laws for Sailcraft Dynamics in Heliocentric Orbits

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
F. A. Abd El-Salam
Keyword(s):  
Cone Angle ◽  
Analytical Control ◽  
Input Constraints ◽  
Force Vector ◽  
Control Laws ◽  
Solar Sailing ◽  
Special Cases ◽  
Heliocentric Orbits ◽  
Solar Radiation Forces ◽  
Heliocentric Orbit

The concept of solar sailing and its developing spacecraft is presented. The gravitational and solar radiation forces are considered. The effect of source of radiation pressure and the force due to coronal mass ejections and solar wind on the sailcraft configurations is modeled. Some analytical control laws with some mentioned input constraints for optimizing sailcraft dynamics in heliocentric orbit using lagrange’s planetary equations are obtained. Optimum force vector in a required direction is maximized by deriving optimal sail cone angle. Ignoring the absorbed and diffusely reflected parts of the radiation, some special cases are obtained. New control laws that maximize thrust to obtain certain required maximization in some particular orbital element are obtained.

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