双凸极电机驱动系统提前角自寻优控制研究
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南京信息工程大学 自动化学院

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TM355

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国家自然科学基金(51507082);江苏省研究生科研与实践创新计划项目(JCX21_0366)


Advance angle self-optimizing control for doubly salient electro-magnetic machine drive system
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School of Automation,Nanjing University of Information Science and Technology

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    摘要:

    双凸极电机(doubly salient electro-magnetic machine, DSEM)输出转矩大小与提前角度的选取有关,由于DSEM的非线性特征,通常采用多组有限元仿真和实验来选取合适的提前角度,并且工况变化后需要重新选取。为了简化提前角度的选取,文中提出了双凸极电机驱动系统提前角自寻优控制方法。首先,分析了DSEM电枢电流包围面积同输出转矩的关系,在此基础上建立了电机输出转矩估算模型。进一步,提出了提前角自寻优控制方法,对DSEM驱动系统提前角进行扰动,基于转矩估算模型比较不同提前角下电机输出转矩的大小,自动寻优得到DSEM最大输出转矩对应的提前角。最后,通过对12/8极DSEM进行场路联合仿真和实验验证了所提方法的有效性和可行性。

    Abstract:

    The output torque of a doubly salient electro-magnetic machine (DSEM) is related to the selection of the advance angle. Due to the nonlinear characteristics of DSEM, multiple finite element simulations and experiments are usually used to obtain the appropriate advance angle, and it needs to be reselected when the operating conditions change. To simplify the selection of the advance angle, an advance angle self-optimizing control of the DSEM drive system is proposed in this paper. Firstly, the relationship between the DSEM armature current enveloping area and the output torque is analyzed. With this for basis, the output torque estimation model is established. Then, the advance angle self-optimization control method is proposed. The advance angle of the DSEM drive system is perturbed by a fixed step. Based on the torque estimation model, by comparing the output torque of DSEM under different advance angles, the maximum output torque corresponding advance angle of the DSEM is automatically optimized. Finally, the effectiveness and feasibility of the proposed method are verified by field-circuit co-simulation and experiment on 12/8 DSEM.

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历史
  • 收稿日期:2021-10-22
  • 最后修改日期:2022-04-17
  • 录用日期:2022-04-25
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