Bibliographic Details
| Title: |
Performance Degradation of Surface PMSMs with Demagnetization Defect under Predictive Current Control. |
| Authors: |
Verkroost, Lynn1,2 Joachim.Druant@UGent.beLynn.Verkroost@UGent.be, Druant, Joachim1,2 Hendrik.Vansompel@UGent.be, Vansompel, Hendrik1,2 Frederik.DeBelie@UGent.be, De Belie, Frederik1,2 Peter.Sergeant@UGent.be, Sergeant, Peter1,2 |
| Source: |
Energies (19961073). Mar2019, Vol. 12 Issue 5, p782. 1p. 5 Diagrams, 1 Chart, 14 Graphs. |
| Subject Terms: |
*DEMAGNETIZATION, *PERMANENT magnets, *ELECTRIC potential, *PREDICTIVE control systems, *ELECTRIC power system faults |
| 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. [ABSTRACT FROM AUTHOR] |
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