Servo control booster system for minimizing following error
A closed-loop feedback-controlled servo system is disclosed which reduces command-to-response error to the system's position feedback resolution least increment, ..delta..S /sub R/, on a continuous real-time basis for all operating speeds. The servo system employs a second position feedback control loop on a by exception basis, when the command-to-response error greater than or equal to..delta..S /sub R/, to produce precise position correction signals. When the command-to-response error is less than ..delta..S /sub R/, control automatically reverts to conventional control means as the second position feedback control loop is disconnected, becoming transparent to conventional servo control means. By operating the second unique position feedback control loop used herein at the appropriate clocking rate, command-to-response error may be reduced to the position feedback resolution least increment. The present system may be utilized in combination with a tachometer loop for increased stability.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- US 4553078
- OSTI ID:
- 5890767
- Country of Publication:
- United States
- Language:
- English
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Servo control booster system for minimizing following error
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Related Subjects
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
CLOSED-LOOP CONTROL
CONTROL
CONTROL EQUIPMENT
DATA PROCESSING
DESIGN
DIGITAL SYSTEMS
EQUIPMENT
ERRORS
FEEDBACK
FUNCTIONS
OPERATION
POSITIONING
PROCESSING
REAL TIME SYSTEMS
RESOLUTION
RESPONSE FUNCTIONS
SERVOMECHANISMS