Control method and apparatus with reset windup prevention

Details Control method and apparatus with reset windup prevention Control method and apparatus with reset windup prevention

1978-09-20

1981-05-19

Rubinson, Gene Z.

Electricity: motive power systems

Positional servo systems

'reset' systems

364108, 364118, G05B 1142

Patent

active

042687845

ABSTRACT:
In a control method wherein a control signal is generated in response to the deviation of a process variable signal from a setpoint signal and the time integral over this deviation, the windup of the respective controller is prevented by automatically modifying this deviation by a signal representative of the difference between the control signal and the process control signal such as to reduce the deviation of the process variable signal from the setpoint signal by an amount representative of the difference mentioned.

REFERENCES:
patent: 3219936 (1965-11-01), Eksten et al.
patent: 3377547 (1968-04-01), Ohlson
patent: 3566241 (1971-02-01), Ross
patent: 3582629 (1971-06-01), Ross
patent: 3790765 (1974-02-01), Morrison
patent: 3938017 (1976-02-01), Hayes
patent: 3940594 (1976-02-01), Bleak et al.

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