Method for controlling a drive motor of an actuator as well as drive motor of an actuator
AssigneeSBS-Feintechnik GmbH & Co. KG
InventorUwe Gnauert
Life of this patent
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Abstract
In a method for controlling a drive motor of an actuator for actuating a valve, the power of the drive motor is supplied by pulse width modulated voltage controlled by a control frequency to adjust the actuator coupled to a valve into a desired position. The control frequency is changed such that a mixture of frequencies is produced. The control frequency is changed in steps. The frequencies of the mixture of frequencies are selected to be near the nominal control frequency. A drive motor of an actuator is provided that is controlled by the described method.
Claims21
A method for controlling a drive motor of an actuator for actuating a valve, the method comprising:
- supplying a power to the drive motor by pulse width modulated voltage controlled by a control frequency to adjust the actuator coupled to a valve into a desired position;
- changing the control frequency such that a mixture of frequencies is produced;
- repeating a fixed frequency sequence of the mixture of frequencies;
- providing frequencies of the fixed frequency sequence for an integer number of periods, wherein the integer number of periods is in a range of 1 to 0.2×control frequency.
A method for controlling a drive motor of an actuator for actuating a valve, the method comprising:
- supplying a power to the drive motor by pulse width modulated voltage controlled by a control frequency to adjust the actuator coupled to a valve into a desired position;
- changing the control frequency such that a mixture of frequencies is produced;
- repeating a fixed frequency sequence of the mixture of frequencies;
- wherein a number of frequencies of the fixed frequency sequence is in a range of 2 to 1,000.
Dependencies are inferred from the claim text.