Sensorless Scheme for Permanent-Magnet Synchronous Motors Susceptible to Time-Varying Load Torques
This paper is devoted to designing a sensorless high-speed tracking control for surface-mount permanent-magnet synchronous motors, considering a time-varying load torque. This proposal consists of an extended-state observer interconnected with a PI-compensated controller, considering only the measur...
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MDPI AG
2023-07-01
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| Series: | Mathematics |
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| Online Access: | https://www.mdpi.com/2227-7390/11/14/3066 |
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| author | Christian Aldrete-Maldonado Ramon Ramirez-Villalobos Luis N. Coria Corina Plata-Ante |
| author_facet | Christian Aldrete-Maldonado Ramon Ramirez-Villalobos Luis N. Coria Corina Plata-Ante |
| author_sort | Christian Aldrete-Maldonado |
| collection | DOAJ |
| description | This paper is devoted to designing a sensorless high-speed tracking control for surface-mount permanent-magnet synchronous motors, considering a time-varying load torque. This proposal consists of an extended-state observer interconnected with a PI-compensated controller, considering only the measurement of electrical variables for feedback. First, to design the extended-state observer, a rotary coordinate model of the motor is extended in one state to estimate the load torque and the rotor’s position and speed. Later, the estimations are fedback to a PI-compensated controller to attenuate the time-varying load torques. Our proposed methodology aims to overcome a restriction regarding the solution of the Riccati equation respecting the Lipschitz condition for observer stability analysis. Therefore, a PI-compensated controller described as a closed-loop provides a sensorless scheme. Lyapunov stability analysis is applied to determine sufficient conditions to ensure that the states of the closed-loop system are ultimately bounded, which is one of our main contributions. The proposed observer-based controller scheme deals with unmeasured load torque fluctuations. Furthermore, we carry out high-precision emulations to provide testing scenarios of the permanent-magnet synchronous motor with some challenging load torque magnitudes and behaviors. Finally, we conduct experiments on the Technosoft<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>®</mo></msup></semantics></math></inline-formula> development platform to corroborate the feasibility of the proposed control scheme in a real-world scenario. |
| first_indexed | 2024-03-11T00:52:19Z |
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| id | doaj.art-e483f753c41741059e46cf2be8e0a9a7 |
| institution | Directory Open Access Journal |
| issn | 2227-7390 |
| language | English |
| last_indexed | 2024-03-11T00:52:19Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Mathematics |
| spelling | doaj.art-e483f753c41741059e46cf2be8e0a9a72023-11-18T20:20:02ZengMDPI AGMathematics2227-73902023-07-011114306610.3390/math11143066Sensorless Scheme for Permanent-Magnet Synchronous Motors Susceptible to Time-Varying Load TorquesChristian Aldrete-Maldonado0Ramon Ramirez-Villalobos1Luis N. Coria2Corina Plata-Ante3Postgraduate Program in Engineering Sciences, Dynamics Systems and Control, Tecnologico Nacional de Mexico/ IT Tijuana, Blvd. Alberto Limon Padilla s/n, Tijuana 22454, MexicoPostgraduate Program in Engineering Sciences, Dynamics Systems and Control, Tecnologico Nacional de Mexico/ IT Tijuana, Blvd. Alberto Limon Padilla s/n, Tijuana 22454, MexicoPostgraduate Program in Engineering Sciences, Dynamics Systems and Control, Tecnologico Nacional de Mexico/ IT Tijuana, Blvd. Alberto Limon Padilla s/n, Tijuana 22454, MexicoPostgraduate Program in Engineering Sciences, Dynamics Systems and Control, Tecnologico Nacional de Mexico/ IT Tijuana, Blvd. Alberto Limon Padilla s/n, Tijuana 22454, MexicoThis paper is devoted to designing a sensorless high-speed tracking control for surface-mount permanent-magnet synchronous motors, considering a time-varying load torque. This proposal consists of an extended-state observer interconnected with a PI-compensated controller, considering only the measurement of electrical variables for feedback. First, to design the extended-state observer, a rotary coordinate model of the motor is extended in one state to estimate the load torque and the rotor’s position and speed. Later, the estimations are fedback to a PI-compensated controller to attenuate the time-varying load torques. Our proposed methodology aims to overcome a restriction regarding the solution of the Riccati equation respecting the Lipschitz condition for observer stability analysis. Therefore, a PI-compensated controller described as a closed-loop provides a sensorless scheme. Lyapunov stability analysis is applied to determine sufficient conditions to ensure that the states of the closed-loop system are ultimately bounded, which is one of our main contributions. The proposed observer-based controller scheme deals with unmeasured load torque fluctuations. Furthermore, we carry out high-precision emulations to provide testing scenarios of the permanent-magnet synchronous motor with some challenging load torque magnitudes and behaviors. Finally, we conduct experiments on the Technosoft<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>®</mo></msup></semantics></math></inline-formula> development platform to corroborate the feasibility of the proposed control scheme in a real-world scenario.https://www.mdpi.com/2227-7390/11/14/3066time-varying load torque variationsextended-state observersensorless controlsurface-mount PMSM |
| spellingShingle | Christian Aldrete-Maldonado Ramon Ramirez-Villalobos Luis N. Coria Corina Plata-Ante Sensorless Scheme for Permanent-Magnet Synchronous Motors Susceptible to Time-Varying Load Torques Mathematics time-varying load torque variations extended-state observer sensorless control surface-mount PMSM |
| title | Sensorless Scheme for Permanent-Magnet Synchronous Motors Susceptible to Time-Varying Load Torques |
| title_full | Sensorless Scheme for Permanent-Magnet Synchronous Motors Susceptible to Time-Varying Load Torques |
| title_fullStr | Sensorless Scheme for Permanent-Magnet Synchronous Motors Susceptible to Time-Varying Load Torques |
| title_full_unstemmed | Sensorless Scheme for Permanent-Magnet Synchronous Motors Susceptible to Time-Varying Load Torques |
| title_short | Sensorless Scheme for Permanent-Magnet Synchronous Motors Susceptible to Time-Varying Load Torques |
| title_sort | sensorless scheme for permanent magnet synchronous motors susceptible to time varying load torques |
| topic | time-varying load torque variations extended-state observer sensorless control surface-mount PMSM |
| url | https://www.mdpi.com/2227-7390/11/14/3066 |
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