Accurate MTPA Control Based on Ferrari Method for IPMSM with Partial Derivative Term Calculation
Even if the exact motor parameters are known, the MTPA strategy cannot obtain precise maximum torque per ampere (MTPA) points under large current amplitude because the partial derivative of inductance to current is ignored in the modeling process. In view of this, the MTPA mathematical model considering the partial derivative of inductance to current is established in this paper, and the MTPA point tracking error caused by ignoring the partial derivative in the modeling process based on Ferrari method is analyzed. Then, an offline-online combined method for calculating the partial derivative term is proposed to compensate the MTPA tracking error. On this basis, an MTPA control strategy based on Ferrari method considering the partial derivative of inductance to current is proposed. Experiment to verify the feasibility and effectiveness of the proposed method.
Authors
- Liyan Guo (ORCID: https://orcid.org/0000-0003-2858-1655)
- Xin Gu (ORCID: https://orcid.org/0000-0003-0598-9340)
- Chen Li (ORCID: https://orcid.org/0000-0003-4508-5848)
- Zhiqiang Wang (ORCID: https://orcid.org/0000-0002-0719-2047)
- Xinmin Li (ORCID: https://orcid.org/0000-0002-5089-3463)
- Wei Chen (ORCID: https://orcid.org/0000-0002-7381-2945)
- Yiyang Li (ORCID: https://orcid.org/0000-0002-5809-6901)
Institutions
- Tiangong University (CN)
- Zhejiang Institute of Special Equipment Inspection (CN)
- Zhejiang University (CN)
Publication Details
- Published
- 2024-11-26
- DOI
- https://doi.org/10.23919/icems60997.2024.10920992
- Primary Topic
- Machine Learning and ELM
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Zhejiang Province