proportional control


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proportional control

[prə′pȯr·shən·əl kən′trȯl]
(control systems)
Control in which the amount of corrective action is proportional to the amount of error; used, for example, in chemical engineering to control pressure, flow rate, or temperature in a process system.
References in periodicals archive ?
The owner in fact imposed extremely strict requirements for the cooling system selection, such as water temperature stability, water collection, adaptability to the variable primary flow system (VPF) and the unit's equipment with a proportional control valve to adjust the cooling water flow and ensure the pressure difference.
When this was completely integrated with this system, it was equipped with a proportional control function to enable steam generator operation in accordance with the gas engine load, as well as quantity control to efficiently control multiple units, thereby enabling the steam generator to track changes in the gas engine load or changes in the load of the used steam.
Infinitely proportional control can adjust payout and pullback from as little as 3 inches per minute to 195 feet per minute.
The pilot-operated hydraulic system, which offers low-effort, proportional control of the machine's functions, employs two main pumps that use all of the Cat C13 ACERT's power output for maximum efficiency.
Look for opportunities to improve process control through on/off or proportional control systems.
In this paper, two control methods (1) proportional control and (2) single set point control are presented for the C[O.
The pump displacement control system (3) uses an electrohydraulic proportional control valve to adjust the swash plate angle of the pump.
The first video in the series features Ian Parnell, Head of Technical Support (Europe) at West Control Solutions, who explains On/Off Control and Proportional Control in detail and clearly lays out the differences between the two.
current configuration), researchers have used various approaches, such as machine learning, decoders, pattern recognition, and proportional control [5,13,19-28].
Proportional control units accept a wide range of control signals while generating multiple feedback signals and are easily installed, calibrated, and adjusted in the field, www.
The Ovation retrofit project also included eliminating the manual calibration of six proportional control valves, renovating the automatic turning gear to engage automatically on coast down, and streamlining the control schemes for easier troubleshooting.