A Composite Sliding Mode Control Method for the Servo PMSM Based onDisturbance Observer
In order to improve the robustness and position control accuracy of a servo permanent magnet synchronous motor(PMSM), it designed a composite sliding mode control method combining position control loop and speed control loop, which is used for permanent magnet synchronous servo drive system with unk...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2019-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2019.06.008 |
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| Summary: | In order to improve the robustness and position control accuracy of a servo permanent magnet synchronous motor(PMSM), it designed a composite sliding mode control method combining position control loop and speed control loop, which is used for permanent magnet synchronous servo drive system with unknown disturbance. The composite sliding mode controller has a position control mode and a speed control mode which can adaptively adjust the control mode according to the operating conditions to improve the positional accuracy and the responding speed of the servo control. In addition, a nonlinear observer is introduced to estimate the unknown external disturbance and used for compensation control, which not only improves the anti-interference ability of the system, but also reduces the system chattering caused by the sliding mode control. The effectiveness and robustness of the proposed method is verified by a 750 W low-power PMSM system. |
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| ISSN: | 2096-5427 |