MTPA-Based Finite-Set Model Predictive Control Without Weighting Factors for Linear Induction Machine

Elmorshedy Mahmoud F.; Xu Wei; Allam Said M.Rodriguez JoseGarcia Cristian

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MTPA-Based Finite-Set Model Predictive Control Without Weighting Factors for Linear Induction Machine

机译：MTPA-Based Finite-Set Model Predictive Control Without Weighting Factors for Linear Induction Machine

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摘要

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.

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《IEEE Transactions on Industrial Electronics》 |2021年第3期|2034-2047|共14页
作者
Elmorshedy Mahmoud F.; Xu Wei; Allam Said M.Rodriguez JoseGarcia Cristian;
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作者单位

Tanta Univ, Fac Engn, Dept Elect Power & Machines Engn, Tanta 31733, Egypt;

Univ Andres Bello, Dept Engn Sci, Santiago 8370146, Chile;

Univ Talca, Dept Elect Engn, Curico 7500971, ChileHuazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China;

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正文语种英语
中图分类无线电电子学、电信技术;
关键词
Induction machines; Predictive models; Cost function; Atmospheric modeling; Switches; Predictive control; Air gaps; End-effects; finite-set model predictive direct flux control (FS-MPDFC); linear induction machine (LIM); and maximum thrust per ampere (MTPA);

MTPA-Based Finite-Set Model Predictive Control Without Weighting Factors for Linear Induction Machine

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