Adaptive process control system, especially for control of tempe

Details Adaptive process control system, especially for control of tempe Adaptive process control system, especially for control of tempe

1989-09-15

1992-07-14

Smith, Jerry

Boots, shoes, and leggings

364165, G05B 1300, G06F 1546, H05B 668

Patent

active

051309203

ABSTRACT:
A control system (method and apparatus) is adaptive on-line with changing process conditions, for example, the specific heat of a liquid used in a process. The system regulates a variable of a process (temperature of the liquid used in the process) and has a fast dynamic response to handle temperature transients while adapting to changing process conditions. The system uses feedforward and feedback control loops, which in the case of the process involving the temperature control of a liquid are respectively responsive to the temperature of the liquid before and after a control point. The system exercises adaptive control of the feedforward control function from the feedback loop. The system is preferably implemented with a digital computer. The fast dynamic response is enhanced by applying microwave energy from a microwave generator to heat the liquid at the control point with the feedforward and feedback control loops controlling the microwave generator.

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