A Robust Current Controller Design Method for Highly Nonlinear Synchronous Reluctance Motors
A Robust Current Controller Design Method for Highly Nonlinear Synchronous Reluctance Motors
- Author(s): I. Z. Petrić 1 ; A. Galassini 1 ; S. Wang 2 ; D. Prystupa 2 ; M. Degano 1 ; G. Buticchi 2 ; C. Gerada 1
- DOI: 10.1049/icp.2021.1032
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- Author(s): I. Z. Petrić 1 ; A. Galassini 1 ; S. Wang 2 ; D. Prystupa 2 ; M. Degano 1 ; G. Buticchi 2 ; C. Gerada 1
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View affiliations
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Affiliations:
1:
Power Electronics, Machines and Control Group, University of Nottingham , Nottingham , United Kingdom ;
2: Zhejiang Key Laboratory on the More Electric Aircraft Technologies, University of Nottingham , Ningbo , China
Source:
The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020),
2021
p.
104 – 109
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Affiliations:
1:
Power Electronics, Machines and Control Group, University of Nottingham , Nottingham , United Kingdom ;
- Conference: The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)
- DOI: 10.1049/icp.2021.1032
- ISBN: 978-1-83953-542-0
- Location: Online Conference
- Conference date: 15-17 December 2020
- Format: PDF
Due to the rotor construction, Synchronous Reluctance (SynRel) machines exhibit high magnetic saturation and cross-saturation. This leads to strongly variable dq inductances, which affect the current loop response. In order to achieve constant current loop dynamics, controller gains need to be adapted according to the current bias. In this paper, three different methods for implementing a PI current controller are analyzed and tested. The magnetic characteristics of the tested SynRel are obtained using the FEA and also a state-of-the-art experimental procedure. The experimental verification of the current loop response is given for a 15 kW 3-phase SynRel motor, using a standard industrial 3-phase inverter.
Inspec keywords: invertors; nonlinear control systems; machine windings; digital control; machine control; robust control; electric current control; finite element analysis; control system synthesis; PI control; rotors; reluctance motor drives
Subjects: Drives; DC-AC power convertors (invertors); Current control; Finite element analysis; Stability in control theory; Nonlinear control systems; Control system analysis and synthesis methods; Finite element analysis; Synchronous machines; Control of electric power systems