High-Accuracy and Fast-Response Flywheel Torque Control

Compared with current mode flywheel torque controller, speed mode torque controller has superior disturbance rejection capability. However, the speed loop delay reduces system dynamic response speed. To solve this problem, a two-degrees-of-freedom controller (2DOFC) which consists of a feedback cont...

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Published in:Mathematical problems in engineering 2014-01, Vol.2014 (2014), p.1-10
Main Authors: Zhou, Xinxiu, Zhang, Ran, Li, Meng
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Control systems
Control theory
Controllers
Design engineering
Dynamic response
Feedback control
Feedforward
Feedforward control
Flywheels
Influence
Kalman filters
Magnetic levitation
Mathematical models
Motors
Noise
Parameter estimation
Parameter identification
Real time
Recursive functions
Science
Torque
Transfer functions
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Li, Meng
description Compared with current mode flywheel torque controller, speed mode torque controller has superior disturbance rejection capability. However, the speed loop delay reduces system dynamic response speed. To solve this problem, a two-degrees-of-freedom controller (2DOFC) which consists of a feedback controller (FBC) and a command feedforward controller (FFC) is proposed. The transfer function of FFC is found based on the inverse model of motor drive system, whose parameters are identified by recursive least squares (RLS) algorithm in real-time. Upon this, Kalman filter with softening factor is introduced for the improved parameters identification and torque control performances. Finally, the validity and the superiority of the proposed control scheme are verified through experiments with magnetically suspended flywheel (MSFW) motor.
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source Wiley-Blackwell Open Access Collection; Publicly Available Content Database; IngentaConnect Journals
subjects Accuracy
Algorithms
Control systems
Control theory
Controllers
Design engineering
Dynamic response
Feedback control
Feedforward
Feedforward control
Flywheels
Influence
Kalman filters
Magnetic levitation
Mathematical models
Motors
Noise
Parameter estimation
Parameter identification
Real time
Recursive functions
Science
Torque
Transfer functions
title High-Accuracy and Fast-Response Flywheel Torque Control
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