可控磁路式永磁悬浮系统的鲁棒控制

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Abstract In order to reduce the power consumption of magnetic suspension system, a magnetic suspension system using variable the flux path control method was put forwarded.Its feasibility was verified by using FEA, and a dynamical model was developed.To stabilize the system, a robust control model was established and a corresponding status feedback γ-suboptimal H∞ robust controller was designed according to the H∞ robust control theory based on the LMI.The suspension characteristics were analyzed using numerical simulations and experiments.The results show that the suspension system can realize the energy saving of the suspension, track the input displacement signal, restrain disturbance forces, solve the problem of system instability caused by uncertain parameters and disturbances and ensure the robustness of system.

Key words： permanent magnetic suspension variable flux path robust control

Received: 05 December 2017 Published: 15 May 2019

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	Articles by authors
	SUN Feng
	XIA Pengpeng
	SUN Xingwei
	JIN Junjie
	ZHAO Wenhui
	DOU Rutong
	YU Shenbo

Cite this article:

SUN Feng,XIA Pengpeng,SUN Xingwei, et al. Robust control of a permanent magnetic suspension system using the variable flux path control method[J]. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(10): 65-70.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2019/V38/I10/65

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