Robust three‑vector model predictive torque and stator flux control for PMSM drives with prediction error compensation

Qixun Zhou; Fan Liu; Hao Gong

Robust three‑vector model predictive torque and stator flux control for PMSM drives with prediction error compensation

Qixun Zhou

Fan Liu

Hao Gong

Vol. 22, No. 11, pp. 1917-1926, Nov. 2022

10.1007/s43236-022-00522-x

Permanent magnet synchronous motor

Three-vector torque and stator flux prediction control

Prediction error compensation

Parameter robustness

Abstract

The finite-set model predictive torque control (PTC) of permanent magnet synchronous motors has a strong dependence on motor parameters, where the three-vector PTC is more sensitive because it involves multiple voltage vectors, increasing the number of predictions. When the predictive torque and stator flux control is performed with mismatched parameters, the prediction errors of the torque and stator flux will be produced, resulting in the misjudgment of the optimal voltage vector and eventually leading to worse system control performance. In this work, a torque and stator flux prediction error reduction method (TVPTC) is proposed by online compensation in the three-vector PTC to improve parameter robustness. First, two loops of torque and stator flux are considered, and the prediction error models in three segments are established: delay compensation, torque and stator flux prediction, and vector action time calculation. Second, the main error sources and error transfer relations of each link are analyzed. Finally, the predicted values of the torque and stator flux at moment k + 1 are accurately compensated according to the online saved error values under the action of diff erent voltage vectors. Simulation and experimental results confirm that the proposed TVPTC method can achieve reliable torque and stator flux prediction control when the motor parameters were mismatched.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
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]

Q. Zhou, F. Liu, H. Gong, "Robust three‑vector model predictive torque and stator flux control for PMSM drives with prediction error compensation," Journal of Power Electronics, vol. 22, no. 11, pp. 1917-1926, 2022. DOI: 10.1007/s43236-022-00522-x.

[ACM Style]

Qixun Zhou, Fan Liu, and Hao Gong. 2022. Robust three‑vector model predictive torque and stator flux control for PMSM drives with prediction error compensation. Journal of Power Electronics, 22, 11, (2022), 1917-1926. DOI: 10.1007/s43236-022-00522-x.