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Design of a reduced-order disturbance observer controller for EMS system with mass uncertainty
- Authors
- Jo, N.-H.
- Issue Date
- May-2017
- Publisher
- Korean Institute of Electrical Engineers
- Keywords
- Disturbance observer(DOB); EMS system; Nominal model
- Citation
- Transactions of the Korean Institute of Electrical Engineers, v.66, no.5, pp.812 - 818
- Volume
- 66
- Number
- 5
- Start Page
- 812
- End Page
- 818
- ISSN
- 1975-8359
- Abstract
- In this paper, we design a reduced-order disturbance observer (DOB) controller for an EMS (Electro-Magnetic Suspension) system with mass uncertainty. Compared with conventional DOB controller, the proposed reduced-order DOB controller can be implemented in a simpler way, since it uses reduced order nominal model and Q-filter. It is shown that the nominal model for the proposed DOB controller should be carefully chosen in order to achieve the robust stability in the present of mass uncertainty. Computer simulation results to validate the effectiveness of the proposed DOB controller are included. © 2017 The Korean Institute of Electrical Engineers.
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Related Researcher
- Jo, Nam Hoon
- College of Engineering (School of Electrical Engineering)