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Content Provider | IET Digital Library |
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Author | Zhao, Kai Hui Zhang, Chang Fan He, Jing Li, Xiang Fei Feng, Jiang Hua Liu, Jian Hua Li, Tao |
Abstract | To improve the accuracy of torque control for vector control of interior permanent-magnet synchronous machine (IPMSM), this study proposes a torque-sensorless control method based on cascaded sliding mode observer (SMO). First, the active flux model is discussed, which converts the model of IPMSM into the equivalent model of surface-mounted permanent-magnet synchronous machine. Second, to reduce chattering caused by system parameters variations and external disturbances, the cascaded observer is designed, which is composed of a variable gain adaptive SMO and an active flux SMO. The variable gain adaptive SMO is designed to estimate the speed, rotor position and stator resistance in the d–q reference frame. The active flux SMO is designed to estimate the active flux and torque in the α–β reference frame. Global asymptotic stability of the observers is guaranteed by the Lyapunov stability analysis. Finally, simulations and experiments are carried out to verify the effectiveness of the proposed control scheme. |
Starting Page | 376 |
Ending Page | 384 |
Page Count | 9 |
Volume Number | 2017 |
e-ISSN | 20513305 |
Issue Number | Issue 7, Jul (2017) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2017/7 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2017.0160 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2017-06-19 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Active Flux SMO Asymptotic Stability Cascade Control Cascaded Observer Design Cascaded Sliding Mode Observer Cascaded SMO Chattering Reduction Control Nonlinearities Control of Electric Power System Control System Analysis Control System Synthesis D–q Reference Frame Electric Resistance External Disturbances Global Asymptotic Stability Interior Permanent-magnet Synchronous Machine IPMSM Model Lyapunov Method Lyapunov Stability Analysis Machine Vector Control Mechanical Variables Control Modelling And Identification Multivariable Control System Nonlinear Control System Observers Permanent Magnet Machine Rotor Position Estimation Rotors Sensorless Machine Control Simulation Speed Estimation Stability in Control Theory Stator Resistance Stators Surface-mounted Permanent-magnet Synchronous Machine Synchronous Machine Synthesis Method System Parameter Variations Torque Control Torque-sensorless Control Variable Gain Adaptive SMO Variable Structure System Vector Control Α–β Reference Frame |
Content Type | Text |
Resource Type | Article |
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