LAPSE:2019.0735
Published Article
LAPSE:2019.0735
Experimental Analysis and Full Prediction Model of a 5-DOF Motorized Spindle
Weiyu Zhang, Huangqiu Zhu, Hengkun Yang, Tao Chen
July 26, 2019
The cost and power consumption of DC power amplifiers are much greater than that of AC power converters. Compared to a motorized spindle supported with DC magnetic bearings, a motorized spindle supported with AC magnetic bearings is inexpensive and more efficient. This paper studies a five-degrees-of-freedom (5-DOF) motorized spindle supported with AC hybrid magnetic bearings (HMBs). Most models of suspension forces, except a “switching model”, are quite accurate, but only in a particular operating area and not in regional coverage. If a “switching model” is applied to a 5-DOF motorized spindle, the real-time performance of the control system can be significantly decreased due to the large amount of data processing for both displacement and current. In order to solve this defect, experiments based on the “switching model” are performed, and the resulting data are analyzed. Using the data analysis results, a “full prediction model” based on the operating state is proposed to improve real-time performance and precision. Finally, comparative, verification and stiffness tests are conducted to verify the improvement of the proposed model. Results of the tests indicate that the rotor has excellent characteristics, such as good real-time performance, superior anti-interference performance with load and the accuracy of the model in full zone. The satisfactory experimental results demonstrate the effectiveness of the “full prediction model” applied to the control system under different operating stages. Therefore, the results of the experimental analysis and the proposed full prediction model can provide a control system of a 5-DOF motorized spindle with the most suitable mathematical models of the suspension force.
Keywords
experimental analysis, magnetic bearing, Modelling, prediction model, suspension force
Subject
Suggested Citation
Zhang W, Zhu H, Yang H, Chen T. Experimental Analysis and Full Prediction Model of a 5-DOF Motorized Spindle. (2019). LAPSE:2019.0735
Author Affiliations
Zhang W: School of Electrical and Information Engineering, Jiangsu University, Xuefu Road 301, 212013 Zhenjiang, China
Zhu H: School of Electrical and Information Engineering, Jiangsu University, Xuefu Road 301, 212013 Zhenjiang, China
Yang H: School of Electrical and Information Engineering, Jiangsu University, Xuefu Road 301, 212013 Zhenjiang, China
Chen T: School of Electrical and Information Engineering, Jiangsu University, Xuefu Road 301, 212013 Zhenjiang, China
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Journal Name
Energies
Volume
10
Issue
1
Article Number
E75
Year
2017
Publication Date
2017-01-10
Published Version
ISSN
1996-1073
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Original Submission
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PII: en10010075, Publication Type: Journal Article
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LAPSE:2019.0735
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doi:10.3390/en10010075
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Jul 26, 2019
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Jul 26, 2019
 
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Jul 26, 2019
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Original Submitter
Calvin Tsay
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