Control structure for the active damping of low-frequency oscillations in numerically controlled machine tools
First Claim
1. A control structure for the active damping of low-frequency oscillations in numerically-controlled machine tools, comprising:
- an rpm regulator comprising;
a proportional component; and
an integral component;
an active damping element that forms a low-frequency correction signal, which is phase-shifted with respect to an interfering low-frequency oscillation and free of d.c. components; and
a summing point that is upstream or downstream of said integral component and receives said low-frequency correction signal.
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Abstract
A control structure for the active damping of low-frequency oscillations in numerically-controlled machine tools. The control structure includes an rpm regulator having a proportional component and an integral component. The control structure further includes an active damping element that forms a low-frequency correction signal, which is phase-shifted with respect to an interfering low-frequency oscillation and free of d.c. components, and a summing point that is upstream or downstream of the integral component and receives the low-frequency correction signal.
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Citations
18 Claims
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1. A control structure for the active damping of low-frequency oscillations in numerically-controlled machine tools, comprising:
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an rpm regulator comprising;
a proportional component; and
an integral component;
an active damping element that forms a low-frequency correction signal, which is phase-shifted with respect to an interfering low-frequency oscillation and free of d.c. components; and
a summing point that is upstream or downstream of said integral component and receives said low-frequency correction signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification