基于矢量分区的永磁同步电机三电平双矢量模型预测磁链控制

doi:10.19595/j.cnki.1000-6753.tces.190520

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Abstract A new model predictive flux control scheme with two-vector is proposed in a manner where a novel vector subregion is adopted. The proposed control scheme can improve the steady-state control performance of permanent magnet synchronous motor (PMSM) supplied by a three-level inverter, and reduce the computation burden. Firstly, the control of electromagnetic torque and flux is transformed into the control of single stator flux vector, and thus the weighting factor in traditional predictive torque control can be eliminated. Secondly, the influence of basic voltage vectors in different sectors on system operation is analyzed in depth, and the number of alternative vectors is reduced to 1-3 in terms of virtual slope. Meanwhile, to reduce the torque ripple, the optimization criterion of duty cycle is established, and the control performance of double non-zero vector is further obtained. Finally, the simulation and experimental results show the effectiveness of the proposed control strategy.

Key words： Permanent magnet synchronous motor three-level model predictive flux control virtual slope torque ripple duty cycle

Received: 06 May 2019

PACS:

TM351

Fund:国家自然科学基金资助项目（51807098）

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	Yu Feng
	Zhu Chenguang
	Wu Xiaoxin
	Zhang Lei

Cite this article:

Yu Feng,Zhu Chenguang,Wu Xiaoxin等. Two-Vector-Based Model Predictive Flux Control of Three-Level Based Permanent Magnet Synchronous Motor with Sector Subregion[J]. Transactions of China Electrotechnical Society, 2020, 35(10): 2130-2140.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190520 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I10/2130

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