Review of Classical Control
A “system” is a collection of “components” which interact with one another and with their “environment.” A very good example of a system is a political system such as the United States containing many components, its 50 states, which interact with not only each other but also neighboring countries. A “control” system, which can be either “open-loop” or “closed-loop,” is a collection of components that interact in such a way that a particular “input” results in a particular “output.” Otherwise, it is out of control. A “deterministic” control system is one where the input/output relationship is predictable and repeatable. Otherwise, it is stochastic. For example, an electromechanical system such as the DC motor is a deterministic control system that contains many components: resistor, inductor, magnetic coupling, inertia, viscous damper, etc.; their interaction is such that a specific input voltage will result in a specific output velocity.
KeywordsSettling Time Electromechanical System Classical Control Root Locus Bode Plot
Unable to display preview. Download preview PDF.
- DiStefano, J.J., III, Stubberud, A.R., and Williams, I.J., 1990, Feedback and Control Systems, 2nd ed., Schaum’s Outline Series, McGraw-Hill, New York.Google Scholar
- Dorf, R.C., 1990, Modern Control Systems, 5th ed., Addison-Wesley, Reading, Mass.Google Scholar
- Franklin, G.F., Powell, J.D., and Emami-Naeini, A., 1991, Feedback Control of Dynamic Systems, 2nd ed., Addison-Wesley, Reading, Mass..Google Scholar