This work has been partially funded by the Spanish State Research Agency (AEI) and the European Regional Development Fund (ERFD) through the projects DEOCS (ref. MINECO DPI2016-76493), SCAV (ref. MINECO DPI2017-88403-R) and through the grant IJCI-2014-20801. This work has also been partially funded by AGAUR of Generalitat de Catalunya through the Advanced Control Systems (SAC) group grant (2017 SGR 482) and by AGAUR and the European Social Fund (ESF) and the Secretary of University and Research of the Department of Companies and Knowledge of the Government of Catalonia through the grant FI-DGR 2015 (ref. 2015 FI_B 00591).

This paper presents a method for the detection of faults in electrical pumps. The method relies on the computation of two features, the pump efficiency and the hydraulic balance, that present reference values during healthy pump operation and change when the pump is affected by a fault. In this paper, the CUSUM Change Detection Test and the Mann-Whitney Change Point Method are proposed as change detection algorithms to process both features. The method has been applied to a real installation with several pumps and the results are reported in the paper.

Peer reviewed