초록 ▼

A method is described for the closed-loop control of a time-delayed process having compensation, in particular for temperature control. After a setpoint value step-change, the manipulated variable is set at a first constant value in an open-loop controlled operation, an IT1 model is identified on th

A method is described for the closed-loop control of a time-delayed process having compensation, in particular for temperature control. After a setpoint value step-change, the manipulated variable is set at a first constant value in an open-loop controlled operation, an IT1 model is identified on the basis of the step-change response and a PI controller is parametrized, which closed-loop controls the process into a second steady state. Subsequently, a more exact process model having compensation is determined and is used for the control adjustment.

대표청구항 ▼

1. A method for closed-loop control of a time delayed process having compensation, comprising:a) after a setpoint value step-change from a first steady state, setting, in step fashion and in an open-loop operation, a manipulated variable to a first constant value to reduce a system deviation; b) aft

1. A method for closed-loop control of a time delayed process having compensation, comprising:a) after a setpoint value step-change from a first steady state, setting, in step fashion and in an open-loop operation, a manipulated variable to a first constant value to reduce a system deviation; b) after one of: i) a turning point in a curve of a controlled variable is established, and ii) the system deviation is reduced by a preselected value between 50% and 80% of the step-change, identifying an IT1 model of the process; c) in a first control adjustment, setting a PI structure and parameters of a linear controller, the parameters being set as a function of the IT1 model; d) after the setting step, closed-loop controlling the process by the linear controller into a second steady state; e) after the second steady state has been approximately reached, determining a more exact model having compensation; and f) setting the structure and the parameters of the linear control in a second control adjustment as a function of the more exact model having compensation.