Process performance is sometimes best at an unstable steady state. Following a new control philosophy, stable operation near an unstable steady state can be realized using a relay with hysteresis as a feedback controller. Properly designed, this control scheme produces a stable, small amplitude osci
Nonlinear feedback control for operating a nonisothermal CSTR near an unstable steady state
โ Scribed by D.D. Bruns; J.E. Bailey
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 742 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0009-2509
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstrae-Appbcat~on of relay feedback controllers to mamtam process states near unstable steady states 1s extended to a second order system. the CSTR w&t an ureverslble, exotbernuc reaction The control scheme 1s successful provided the bandanth (the reactor temperature devotion wtuch causes relay swltcbmg) IS not chosen too large relative to the dnve levels (the deviation m coolant temperature caused by relay swttchmg) In tlus context Tsypkm's analytical methods for approxunate solution of tlus and higher order probtems are elaborated and tested Tsypkm's techmque proves supenor to JJescmbmg Function analysts 111 accuracy and m bounds on the maxamum pemnsslble bandwidth
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