TY - JOUR
T1 - MTPA-Based Finite-Set Model Predictive Control without Weighting Factors for Linear Induction Machine
AU - Elmorshedy, Mahmoud F.
AU - Xu, Wei
AU - Allam, Said M.
AU - Rodriguez, Jose
AU - Garcia, Cristian
N1 - Funding Information:
Manuscript received June 27, 2019; revised October 25, 2019 and December 26, 2019; accepted January 10, 2020. Date of publication February 13, 2020; date of current version November 18, 2020. This work was supported in part by the National Natural Science Foundation of China under Grant 51877093 and Grant 51707079, in part by the National Key Research and Development Program of China under Grant YS2018YFGH000299, in part by the Key Technical Innovation Program of Hubei Province under Grant 2019AAA026, and in part by the Fundamental Research Funds for the Central Universities under Grant 2019kfyXMBZ031. (Corresponding author: Wei Xu.) Mahmoud F. Elmorshedy and Wei Xu are with the State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China (e-mail: mahmoud. [email protected]; [email protected]).
Publisher Copyright:
© 1982-2012 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/3
Y1 - 2021/3
N2 - The efficiency of the linear induction machine (LIM) is considerably low due to the large air-gap length and the additional losses resulting from the end-effects. However, so far, a little concentration has been done to increase the efficiency of this kind of motor. Therefore, the main objectives of this article are to eliminate the weighting factor, reduce the calculation steps, and increase the efficiency of the LIM aiding with a proposed finite-set model predictive direct flux control (FS-MPDFC), depending upon the maximum thrust per ampere (MTPA) strategy. The proposed FS-MPDFC is only based on the primary flux-linkage with the help of a novel cost function that does not require any weighting factors in order to considerably reduce the calculation steps. Moreover, the proposed FS-MPDFC is better than the model predictive current control in reducing the calculation step and decreasing the dependence on the transformation matrix and the machine parameters. In order to illustrate the effectiveness of the proposed MTPA-based FS-MPDFC, a comparison between the FS-MPDFC, with and without MTPA, and the previously suggested control techniques is presented and discussed. Moreover, a test bench platform of two 3-kW arc induction machines is constructed to emulate the drive performance of the actual LIM. Comprehensive simulation and experiments have fully demonstrated that the proposed FS-MPDFC with MTPA has lower calculation step, lower thrust ripple by 7%, and lower primary flux-linkage ripple by 0.4% compared to those of the FS-MPDTC. Moreover, the efficiency-based FS-MPDFC with MTPA is increased by 4% compared to that of the FS-MPDFC without MTPA.
AB - The efficiency of the linear induction machine (LIM) is considerably low due to the large air-gap length and the additional losses resulting from the end-effects. However, so far, a little concentration has been done to increase the efficiency of this kind of motor. Therefore, the main objectives of this article are to eliminate the weighting factor, reduce the calculation steps, and increase the efficiency of the LIM aiding with a proposed finite-set model predictive direct flux control (FS-MPDFC), depending upon the maximum thrust per ampere (MTPA) strategy. The proposed FS-MPDFC is only based on the primary flux-linkage with the help of a novel cost function that does not require any weighting factors in order to considerably reduce the calculation steps. Moreover, the proposed FS-MPDFC is better than the model predictive current control in reducing the calculation step and decreasing the dependence on the transformation matrix and the machine parameters. In order to illustrate the effectiveness of the proposed MTPA-based FS-MPDFC, a comparison between the FS-MPDFC, with and without MTPA, and the previously suggested control techniques is presented and discussed. Moreover, a test bench platform of two 3-kW arc induction machines is constructed to emulate the drive performance of the actual LIM. Comprehensive simulation and experiments have fully demonstrated that the proposed FS-MPDFC with MTPA has lower calculation step, lower thrust ripple by 7%, and lower primary flux-linkage ripple by 0.4% compared to those of the FS-MPDTC. Moreover, the efficiency-based FS-MPDFC with MTPA is increased by 4% compared to that of the FS-MPDFC without MTPA.
KW - and maximum thrust per ampere (MTPA)
KW - End-effects
KW - finite-set model predictive direct flux control (FS-MPDFC)
KW - linear induction machine (LIM)
UR - http://www.scopus.com/inward/record.url?scp=85097345179&partnerID=8YFLogxK
U2 - 10.1109/TIE.2020.2972432
DO - 10.1109/TIE.2020.2972432
M3 - Article
AN - SCOPUS:85097345179
SN - 0278-0046
VL - 68
SP - 2034
EP - 2047
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 3
M1 - 8998567
ER -