Title
SDRE-Based Near Optimal Control System Design for PM Synchronous Motor
Abstract
This paper presents a nonlinear optimal speed controller based on a state-dependent Riccati equation (SDRE) for permanent magnet synchronous motor (PMSM). An SDRE-based near optimal load torque observer is also proposed to provide the load torque information for the controller. In both designs, the stability is analytically proven, and the Taylor series method is used to find an approximate solution because the SDRE cannot be directly solved. The SDRE-based optimal controller and the observer can ensure better control performance such as no overshoot and fast transient response in speed tracking than the linear conventional controllers such as linear quadratic regulator and proportional-integral controller even under the variations of the model parameters and load torque. The proposed SDRE-based control strategy is implemented on a PMSM testbed using TMS320F28335 DSP. The simulation and experimental results are given to prove the feasibility of the proposed control scheme.
Year
DOI
Venue
2012
10.1109/TIE.2011.2174540
IEEE Transactions on Industrial Electronics
Keywords
Field
DocType
Observers,Torque control,Mathematical model,Equations,Symmetric matrices,Optimal control,Load modeling,Nonlinear control
Control theory,Optimal control,Torque,Synchronous motor,Nonlinear control,Control theory,Control engineering,Observer (quantum physics),Linear-quadratic regulator,Mathematics,Electronic speed control
Journal
Volume
Issue
ISSN
59
11
0278-0046
Citations 
PageRank 
References 
10
0.64
10
Authors
3
Name
Order
Citations
PageRank
Ton Duc Do1245.15
Han Ho Choi241365.00
Jinwoo Jung320234.07