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SPM performs the mass processing of pressure data captured during each hydraulic events

 

SPM performs a vectorization of the pressure time signal captured for each water hammer or cyclical phenomenon. Signal wave forms are analyzed automatically in real-time independently of the penstock configuration. Exhaustive hydraulic parameters are extracted from the signal, allowing automatic analysis & diagnosis carried out by other modules of HYDROSURGE (ODM and RCM).

Diagnosis-driven vectorization of the pressure time signal

 

 

The Signal Processing Module (SPM) processes the signal and extracts, according to hydro transients type,  up to 28 different  hydraulic scalar parameters embedded in the wave form.

These parameters are used partly by the Overload Detection Module (ODM) to detect any overrun of the  admissible pressure along the entire water line.

All others parameters are used by the Root Cause Module (RCMto perform the hydro diagnosis.

Thanks to Mothrys’s innovative approach of using Phase Diagram Analysis,  robustness of the SPM allows real-time parameters extraction of any signal  independently of the penstock or hydraulic equipment.

Analysis of complex pressure transient recordings including several events is carried out thanks to the  repetition of the extraction process. Thus SPM  detects each significant events embedded in a same captured pressure wave signal.

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The main input parameters used by the ODM allow to detect any risk symtoms as :

  • Maximum pressure reached,
  • Wave water hammer propagation along the penstock,
  • Water column separation caused by a pressure drop propagation and cavitation along the penstock
  •  Abnormal cyclical nature of the pressure fluctuations and penstock resonance.