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- Title
Performance Degradation of Surface PMSMs with Demagnetization Defect under Predictive Current Control.
- Authors
Verkroost, Lynn; Druant, Joachim; Vansompel, Hendrik; De Belie, Frederik; Sergeant, Peter
- Abstract
To control the current of a surface mounted permanent magnet synchronous machine fed by a two-level voltage source inverter, a large variety of control algorithms exists. Each of these controllers performs differently concerning dynamic performance and control- and voltage quality, but also concerning sensitivity to demagnetization faults. Therefore, this paper investigates the performance degradation of three advanced predictive controllers under a partial demagnetization fault. The three predictive controllers are: finite-set model based predictive control, deadbeat control, and a combination of both previous algorithms. To achieve this goal, the three predictive controllers are first compared under healthy conditions, and afterwards under a partial demagnetization fault. A PI controller is added to the comparison in order to provide a model-independent benchmark. Key performance indicators, obtained from both simulations and experimental results on a 4 kW axial flux permanent magnet synchronous machine with yokeless and segmented armature topology, are introduced to enable a quantification of the performance degradation of the controllers under a demagnetization fault. A general conclusion is that the deadbeat controller shows superior control quality, even under partial demagnetization.
- Subjects
DEMAGNETIZATION; PERMANENT magnets; ELECTRIC potential; PREDICTIVE control systems; ELECTRIC power system faults
- Publication
Energies (19961073), 2019, Vol 12, Issue 5, p782
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en12050782