Anomaly detection at the European X-ray Free Electron Laser using a parity-space-based method

A novel approach to detect anomalies in superconducting radio-frequency (rf) cavities is presented, based on the parity space method with the goal to detect quenches and distinguish them from other anomalies. The model-based parity space method relies on analytical redundancy and generates a residual signal computed from measurable rf waveforms. The residual is a sensitive indicator of deviation from the model and provides different signatures for different types of anomalies. This new method not only helps with detecting faults but also provides a catalog of unique signatures, based on the detected fault. The method was experimentally verified at the European X-ray Free Electron Laser (EuXFEL). Various types of anomalies incorrectly detected as quenches by the current quench detection system are analyzed using this new approach.

DDC Class

530: Physics

Lizenz

https://creativecommons.org/licenses/by/4.0/

Name

PhysRevAccelBeams.26.012801.pdf

Type

Main Article

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1.37 MB

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Adobe PDF

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Anomaly detection at the European X-ray Free Electron Laser using a parity-space-based method