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arXiv · 1802.00182

Modeling and control of permanent-magnet synchronous generators under open-switch converter faults

Christoph M. Hackl·Urs Pecha·Korbinian Schechner
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Abstract

The mathematical modeling of open-switch faults in two-level machine-side converters and the fault-tolerant current control of isotropic permanent-magnet synchronous generators are discussed. The proposed converter model is generic for any open-switch fault and independent of the operation mode of the electrical machine. The proposed fault-tolerant current control system gives improved control performance and reduced torque ripple under open-switch faults by (i) modifying the anti-windup strategy, (ii) adapting the space-vector modulation scheme and (iii) by injecting additional reference currents. The theoretical derivations of model and control are validated by comparative simulation and measurement results.

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Christoph M. Hackl, Urs Pecha, Korbinian Schechner. 2018-02-01. Modeling and control of permanent-magnet synchronous generators under open-switch converter faults. https://doi.org/10.1109/tpel.2018.2855423

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