SMC-FUZZY Joint Vector Control of Built-in Permanent Magnet Synchronous Motorized Spindle

doi:10.3901/JME.2022.03.177

Abstract

Abstract: For the characteristics of the built-in permanent magnet synchronous electric spindle drive control system, the maximum torque current ratio control strategy is proposed to handle the stator current. The core of the maximum torque current ratio control strategy is the effective decoupling of the stator current using the Newtonian iteration method, the closed-loop control is used to stably track the actual data. And the fuzzy sliding mode joint control module is established to optimize the system robustness while improving the response speed of the system, suppress the system torque fluctuations and improve the system output performance. The advantages and disadvantages of sliding mode control (Sliding mode control, SMC) and fuzzy control are analyzed, the joint control of fuzzy sliding mode is proposed, which reduces the acceleration time of the system by 0.24 s, the maximum overshoot to 1.3 r/min, and reduces the fluctuations at the system rise, while making the torque fluctuations during stable operation less than 1 r/min. The results show that the joint control not only has the advantages of sliding mode control, but also effectively suppressed torque fluctuations during the stable operation of the system.

Key words: high-speed motorized spindle, maximum torque current ratio control, sliding mode control, fuzzy control

CLC Number:

TH113

SHAN Wentao, LI Kun. SMC-FUZZY Joint Vector Control of Built-in Permanent Magnet Synchronous Motorized Spindle[J]. Journal of Mechanical Engineering, 2022, 58(3): 177-185.

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