磁阻式悬浮平台侧向气隙控研究

doi:10.16180/j.cnki.issn1007-7820.2020.10.003

Abstract

Abstract:

In order to solve the problem that the platform cannot be suspended stably due to the interference of lateral force, a fuzzy adaptive PID lateral air gap control system which can quickly adjust the parameters is designed. The structure of the suspension platform and its suspension mechanism are introduced in detail. The influence of lateral displacement on the platform is analyzed by finite element method, the static and dynamic mathematical models of the control system are established, and the fuzzy adaptive PID controller is designed. The lateral air gap control system of suspension platform is modeled and simulated by MATLAB/Simulink software. The simulation results showed that the fuzzy adaptive PID controller has fast response speed and strong robustness.

Key words: suspension platform, detent force, lateral force, fuzzy control, PID control, MATLAB simulation

CLC Number:

TP273.4

LU Jianfeng,XU Xiaozhuo,GAO Yan,DU Han. Study on Lateral Air Gap Control of a Detent-force-based Magnetic Suspension Platform[J].Electronic Science and Technology, 2020, 33(10): 15-20.

Figures/Tables 13

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e e_c	NB	NM	NS	Z	PS	PM	PB
NB	PB.NB.PS	PB.NB.NS	PM.NM.NB	PM.NM.NB	PS.NS.NB	Z.NS.NM	Z.Z.PS
NM	PB.NB.PS	PB.NB.NS	PM.NM.NB	PM.NS.NM	PS.NS.NS	Z.NS.NS	NS.Z.Z
NS	PN.NB.Z	PM.NM.NS	PM.NS.NM	PS.NS.NM	Z.Z.NS	NS.PS.Z	NM.PM.Z
Z	PM.NM.Z	PS.NM.Z	NS.NS.NS	Z.Z.NS	Z.Z.NS	NS.PS.NS	NM.PM.Z
PS	PS.NM.NS	PS.NS.NS	Z.Z.Z	NS.PS.Z	NS.PM.Z	NM.PM.Z	NM.PB.Z
PM	PS.Z.PB	PS.Z.NS	NS.Z.PS	NM.PS.PS	NM.PM.PS	NM.PM.PM	NB.PB.PB
PB	NS.Z.PB	Z.Z.PB	NM.PS.PM	NM.PM.PM	NB.PM.PS	NB.PB.PS	NB.PB.PB

参数	数值	单位
悬浮质量m	70	kg
绕组匝数N	340	匝
绕组电阻R	2.7	Ω
齿气隙面积A	550	mm²
平衡点气隙c₀	3	mm
平衡点电流i₀	3.5	A
绕组电压U	12	V

Study on Lateral Air Gap Control of a Detent-force-based Magnetic Suspension Platform

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