METHODS, APPARATUSES AND SYSTEMS FOR CONTROLLING A VALVE BASED ON A COMBINATION OF A CHARACTERISTIC CURVE FOR THE VALVE AND A PROPORTIONAL, INTEGRAL AND DERIVATIVE SIGNAL VALVE

摘要

A process device control may use a combination of a characteristic curve for the device and a proportional, integral and derivative signal value. The characteristic curve for the device may define operational characteristics of the process device. The proportional, integral and derivative signal value may be representative of process device operational deviations from the characteristic curve.

主权项

1. A process plant system, the system comprising:
a process device for controlling at least a portion of a process of a process plant; and a process device controller configured to:
receive process device characteristic data;generate a process device control signal based on the process device characteristic curve data, wherein the process device characteristic curve data is representative of operational characteristics of the device; andto correct the process device control signal to compensate for deviations of operation of the process device from the operational characteristics of the device.