Method and oscillation controller for compensating for oscillations of an oscillatable technical system
AssigneeB&R Industrial Automation GmbH
InventorsAndreas STOEGER, Thomas J. FRAUSCHER, Ralf SKOTSCHEK
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Abstract
In order to eliminate control problems caused by a manipulated variable limitation in the oscillation control of an oscillatable technical system, a restriction ( d n u dt n m i n , d n u dt n m ax ) of at least one time derivative of the manipulated variable (u) in a control law for calculating the manipulated variable (u) is taken into account.
Claims17
A method for compensating oscillations of at least one oscillation variable (y) of an oscillatable technical system to be controlled with an oscillation controller having a control law, the method comprising:
- calculating from at least one of:
- a target value (yset) and an actual value (yact) of the oscillation variable (y) to be controlled or
- a time derivative of a target value (yset) and of an actual value (yact) of the oscillation variable (y) to be controlled,
- a manipulated variable (u) for an actuator of the oscillatable technical system,
- wherein in the control law for calculating the manipulated variable (u) takes account of a restriction
- (
- d
- n
-
- u
- dt
- n
-
- m
-
-
- i
-
-
- n
- ,
- d
- n
-
- u
- dt
- n
-
- m
-
-
- ax
- )
- of at least one time derivative of the manipulated variable (u).
An oscillation controller for compensating oscillations of at least one oscillation variable (y) of an oscillatable technical system to be controlled, the oscillation controller comprising:
- a processor;
- and
- a memory including instructions for a control law that, when executed by the processor, cause the processor to perform operations including:
- calculating, from at least one of:
- a target value (yset) and an actual value (yact) of the controlled oscillation variable (y) or
- a time derivative of a target value (yset) and an actual value (yact),
- a manipulated variable (u) for an actuator of the oscillatable technical system,
- wherein the control law for calculation of the manipulated variable (u) takes account of a restriction
- (
- d
- n
-
- u
- dt
- n
-
- m
-
-
- i
-
-
- n
- ,
- d
- n
-
- u
- dt
- n
-
- m
-
-
- ax
- )
- of at least one time derivative of the manipulated variable (u) and the oscillation controller passes the calculated manipulated variable (u) to the actuator for setting.
Dependencies are inferred from the claim text.