ECE4510/ECE5510, INTRODUCTION TO FEEDBACK CONTROL 1–3
Some applications of feedback control
Categories Specific applications
Ecological Wildlife and forest growth management (reference = population);
control of plant chemical wastes via m onitoring lakes and rivers; air
pollution abatement (reference = chemical concentrati ons); water
control and distribution; flood control via dams and reservoirs (ref-
erence = water flow rate).
Medical Medical instrumentation for monitoring and control (reference =
dosage); artificial limbs (prosthesis; reference = limb position).
Home
appliances
Home heating, refrigeration, and air conditioning via thermostatic
control; electronic sensing and control i n clothes dryers; humidity
controllers; temperature control of ovens (references = desired tem-
perature, humidity).
Power/energy Power system control and planning; feedback instrumentation in oil
recovery; optimal control of windmil l blade and solar panel surfaces;
optimal power distribution via pow er factor control; power electron-
ics for dc-dc conversion, battery chargers, motor controls (refer-
ences = power level, optimization criteria).
Trans p o r tat i on Con t r ol of ro adway ve hi c le tr affi c flow s us i ng sens o r s ; aut o m at i c
speed control devices on automobiles; propulsion control i n rail tran-
sit systems; building elevators and escalators (references = vehicle
flow rate, speed, position and speed together).
Manufacturing Sensor-equipped robots for cutting, drilling die casting, forging,
welding, packaging, and assembling; chemical process control; ten-
sion control windup processes in textile mills; conveyor speed con-
trol with optical pyrometer sensing in hot steel rolling mills (refer-
ences = position–speed profiles).
Aerospace and
military
Missile guidance and control; automatic piloting; spacecraft control;
tracking systems; nuclear submarine navigation and control; fire-
control systems (references = position and attitude).
(adapted from: J.R. Rowland, “Linear Control Systems: Modeling, Analysis, and Design,” John Wiley & Sons, (New York: 1986), p. 6.)
Lecture notes prepared by and copyright
c
! 1998–2013, Gregory L. Plett and M. Scott Trimboli
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