Two‑vector model predictive thrust force control of PMSLMs without weighting factor based on flux error

Jian Lin; Xinyi Song; Lei Zhou; Wujie Jiang; Feiyu Sun

Two‑vector model predictive thrust force control of PMSLMs without weighting factor based on flux error

Vol. 26, No. 2, pp. 374-384, Feb. 2026

10.1007/s43236-025-01084-4

Permanent magnet synchronous linear motor

Model predictive thrust force control

Without weighting factor

Two vector

Abstract

In the thrust predictive control of permanent magnet synchronous linear motors, the cost function of the predictive model make it difficult determine the weight coefficients, which results in large fluctuations in the thrust and flux. Therefore, this paper proposed a novel cost function that enhanced the two-vector model predictive thrust control strategy without incorporating a weighting factor. First, a new type of cost function is designed to simplify the combined control of the electromagnetic thrust force and stator flux in the traditional thrust force predictive control cost function to a single control of the stator flux. This avoids rectification of the weighting factor and improves the dynamic response speed of the linear motor. Concurrently, the fluctuation of the magnetic flux during the switching of the voltage vectors in the two-vector synthesis is incorporated as a constraint into the cost function to select the optimal voltage vectors, which reduces the stator flux and the thrust force fluctuation. Experimental results show that the proposed control strategy reduces the thrust fluctuation by 27.9% and the flux fluctuation by 14.2%.

Statistics

Show / Hide Statistics

Statistics (Past 3 Years)
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

J. Lin, X. Song, L. Zhou, W. Jiang, F. Sun, "Two‑vector model predictive thrust force control of PMSLMs without weighting factor based on flux error," Journal of Power Electronics, vol. 26, no. 2, pp. 374-384, 2026. DOI: 10.1007/s43236-025-01084-4.

[ACM Style]

Jian Lin, Xinyi Song, Lei Zhou, Wujie Jiang, and Feiyu Sun. 2026. Two‑vector model predictive thrust force control of PMSLMs without weighting factor based on flux error. Journal of Power Electronics, 26, 2, (2026), 374-384. DOI: 10.1007/s43236-025-01084-4.