| 引用本文: | 许宇豪,乔社娟,肖海峰,李文真.永磁同步电机直接模型预测控制电压矢量占空比优化策略[J].控制理论与应用,2025,42(12):2468~2476.[点击复制] |
| XU Yu-hao,QIAO She-juan,XIAO Hai-feng,LI Wen-zhen.Voltage vector duty cycle optimization strategy for direct model predictive control of PMSM[J].Control Theory & Applications,2025,42(12):2468~2476.[点击复制] |
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| 永磁同步电机直接模型预测控制电压矢量占空比优化策略 |
| Voltage vector duty cycle optimization strategy for direct model predictive control of PMSM |
| 摘要点击 122 全文点击 16 投稿时间：2024-11-18 修订日期：2025-09-17 |
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| DOI编号 10.7641/CTA.2025.40587 |
| 2025,42(12):2468-2476 |
| 中文关键词 模型预测控制 永磁同步电机 参考电压矢量 作用时间 |
| 英文关键词 model predictive control permanent magnet synchronous motor reference voltage vector duration time |
| 基金项目 陕西省科学技术厅自然科学基础研究计划项目(2024JC–YBQN–0440),陕西省教育厅项目(23JK0496)资助. |
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| 中文摘要 |
| 永磁同步电机直接转矩控制和模型预测控制相结合产生的模型预测转矩控制具有控制简单和动态响应能
力强的优点.然而,在控制周期内作用多个电压矢量消除稳态误差时存在电压矢量组合失效和占空比运算复杂的
问题.本文提出了一种永磁同步电机直接模型预测控制的电压矢量占空比优化策略,以提高双电压矢量作用时间运
算结果的有效性.基于无差拍控制原理,推导磁链矢量与电压矢量之间的关系,将控制变量归一化为参考电压矢量,
解决了权重系数整定问题.进而,通过划分扇区子区域,直接得到最优电压矢量组合.最后,基于矢量合成原理,对电
压矢量的作用时间提出了总和与比值约束条件,保证每种电压矢量作用时间的合理性与合成电压矢量的有效性.
实验结果证明了所提方法具有比传统方法更好的稳态性能和良好的动态性能. |
| 英文摘要 |
| Combining the direct torque control and the model predictive control, the model predictive torque control
for permanent magnet synchronous motor has the advantages of simple control and high dynamic response. However,
there are two problems of voltage vector combination failure and complex duty-cycle calculation when multiple voltage
vectors are applied during the control cycle to eliminate steady-state errors. This paper proposes a voltage vector duty
cycle optimization strategy for direct model predictive control of permanent magnet synchronous motor, which improves
the effectiveness of the operation time of dual voltage vector. Based on the principle of deadbeat control, the relationship
between magnetic flux vector and voltage vector is derived. The control target is normalized to the reference voltage vector,
and thus solving the problem of tuning weighting factor. Furthermore, the optimal voltage vector combination can be
directly obtained by dividing the sub-regions of the sector. Finally, a sum and a ratio constraint conditions are proposed
for the action time of voltage vectors based on the principle of vector synthesis. Therefore, the rationality of each voltage
vector and the effectiveness of synthesized voltage vector are improved. The experimental results indicate that the proposed
method has better steady-state performance and good dynamic performance than the traditional methods. |
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