Position sensorless control of PMSM under low-frequency ratio
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| Pubblicato in: | Journal of Physics: Conference Series vol. 3000, no. 1 (Apr 2025), p. 012053 |
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IOP Publishing
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| Accesso online: | Citation/Abstract Full Text - PDF |
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| 001 | 3194235865 | ||
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| 022 | |a 1742-6588 | ||
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| 024 | 7 | |a 10.1088/1742-6596/3000/1/012053 |2 doi | |
| 035 | |a 3194235865 | ||
| 045 | 2 | |b d20250401 |b d20250430 | |
| 100 | 1 | |a Zhang, Xiao |u School of Electrical Engineering, China University of Mining and Technology , Xuzhou 221116, Jiangsu, China | |
| 245 | 1 | |a Position sensorless control of PMSM under low-frequency ratio | |
| 260 | |b IOP Publishing |c Apr 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a In conventional approaches to sensorless PMSM control, Luenberger observer designs are commonly developed and evaluated within the continuous-time domain, with subsequent discretization typically implemented through the first-order forward Euler approximation method. However, when the ratio of the switching frequency to the motor operating frequency is relatively low, traditional observer design methods face issues where current estimation errors fail to converge rapidly or even become unstable. To address the inaccuracies of the Euler discretization method, this paper first establishes an accurate discrete-time mathematical model for single-sampling and single-update PMSM drive systems. Secondly, to simplify parameter calculations and address the computational complexity arising from the asymmetry of the inductance matrix in the mathematical model of salient-pole motors, an approximate symmetry approach is proposed. Based on an improved mathematical model, a full-order back-EMF observer is established to achieve sensorless control of PMSMs. Finally, to mitigate the impact of current mean sampling errors on the position observer, a compensation measure is proposed. Simulation experiments conducted in MATLAB/Simulink validate the proposed methods, and the results verify that the approach performs as expected. | |
| 653 | |a Position measurement | ||
| 653 | |a Inductance | ||
| 653 | |a Mathematical analysis | ||
| 653 | |a Errors | ||
| 653 | |a Position sensing | ||
| 653 | |a Mathematical models | ||
| 653 | |a Discretization | ||
| 653 | |a Asymmetry | ||
| 653 | |a Sampling | ||
| 700 | 1 | |a Liu, Jia |u School of Electrical Engineering, China University of Mining and Technology , Xuzhou 221116, Jiangsu, China | |
| 773 | 0 | |t Journal of Physics: Conference Series |g vol. 3000, no. 1 (Apr 2025), p. 012053 | |
| 786 | 0 | |d ProQuest |t Advanced Technologies & Aerospace Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3194235865/abstract/embedded/L8HZQI7Z43R0LA5T?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3194235865/fulltextPDF/embedded/L8HZQI7Z43R0LA5T?source=fedsrch |