Power transmission
A power servo system is described which includes actuator means adapted to variably actuate a load, the actuator means having a predetermined first polynomial transfer function in the sampled-data domain having first constants related to dynamic behavior characteristics at actuator means. The system also includes a sampled-data servo control means including means for receiving a command signal, sensor means responsive to the actuator means for providing a sensor signal as a function of actuation at the actuator means, and means for providing an error signal to control the actuator means as a combined function of the command signal and the sensor signal to obtain a preselected response characteristic at the actuator means. The means for providing the error signal comprises: means for periodically sampling the sensor signal to provide a sampled sensor signal, feedback compensation means receiving the sampled sensor signal and having a preselected second transfer function coordinated with the first transfer function to obtain the preselected response characteristics, the second transfer function in the sampled-data domain being a polynomial having a number of second constants which vary at functions of the first constants, means responsive to the feedback compensation means and to the command signal to provide the error signal, means for providing a signal indicative of actuation at the actuator means, and means coupled to the feedback compensation means and responsive to the actuation signal over a number of sampling intervals for providing the second constants as a continuing function of actuation at the actuator means.
- Assignee:
- Vickers, Inc., Troy, MI
- Patent Number(s):
- US 4651272
- OSTI ID:
- 6983273
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
24 POWER TRANSMISSION AND DISTRIBUTION
ACTUATORS
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
EQUIPMENT
ERRORS
FEEDBACK
FUNCTIONS
POLYNOMIALS
POWER TRANSMISSION LINES
SERVOMECHANISMS
SIGNALS
TRANSFER FUNCTIONS