The Modern Theory of Robust Control
The theory of robust control began in the late 1970s and early 1980s and soon developed a number of techniques for dealing with bounded system uncertainty.
Probably the most important example of a robust control technique is H-infinity loop-shaping, which was developed by Duncan McFarlane and Keith Glover of Cambridge University; this method minimizes the sensitivity of a system over its frequency spectrum, and this guarantees that the system will not greatly deviate from expected trajectories when disturbances enter the system.
An emerging area of robust control from application point of view is Sliding Mode Control (SMC) which is a variation of variable structure control (VSS). Robustness property of SMC towards matched uncertainty as well as the simplicity in design attracted a variety of application.
Another example is loop transfer recovery (LQG/LTR), which was developed to overcome the robustness problems of LQG control.
Other robust techniques includes Quantitative Feedback Theory (QFT), Gain scheduling etc.
Read more about this topic: Robust Control
Famous quotes containing the words modern, theory, robust and/or control:
“The course of modern learning leads from humanism via nationalism to bestiality.”
—Franz Grillparzer (1791–1872)
“Thus the theory of description matters most.
It is the theory of the word for those
For whom the word is the making of the world,
The buzzing world and lisping firmament.”
—Wallace Stevens (1879–1955)
“Perhaps it is the lowest of the qualities of an orator, but it is, on so many occasions, of chief importance,—a certain robust and radiant physical health; or—shall I say?—great volumes of animal heat.”
—Ralph Waldo Emerson (1803–1882)
“We long for our father. We wear his clothes, and actually try to fill his shoes. . . . We hang on to him, begging him to teach us how to do whatever is masculine, to throw balls or be in the woods or go see where he works. . . . We want our fathers to protect us from coming too completely under the control of our mothers. . . . We want to be seen with Dad, hanging out with men and doing men things.”
—Frank Pittman (20th century)