Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural Network

The head and flow rate of a pump characterize the pump performance, which help determine whether maintenance is needed. In the proposed method, instead of a traditional flowmeter and manometer, the operating points are identified using data collected from accelerometers and microphones. The dataset...

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Main Authors: Hanbing Ma, Oliver Kirschner, Stefan Riedelbauch
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:International Journal of Turbomachinery, Propulsion and Power
Subjects:
Online Access:https://www.mdpi.com/2504-186X/8/4/39
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author Hanbing Ma
Oliver Kirschner
Stefan Riedelbauch
author_facet Hanbing Ma
Oliver Kirschner
Stefan Riedelbauch
author_sort Hanbing Ma
collection DOAJ
description The head and flow rate of a pump characterize the pump performance, which help determine whether maintenance is needed. In the proposed method, instead of a traditional flowmeter and manometer, the operating points are identified using data collected from accelerometers and microphones. The dataset is created from a test rig consisting of a standard centrifugal water pump and measurement system. After implementing preprocessing techniques and Convolutional Neural Networks (CNNs), the trained models are obtained and evaluated. The influence of the sensor location and the performance of different signals or signal combinations are investigated. The proposed method achieves a mean relative error of 7.23% for flow rate and 2.37% for head with the best model. By employing two data augmentation techniques, performance is further improved, resulting in a mean relative error of 3.55% for flow rate and 1.35% for head with the sliding window technique.
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spelling doaj.art-1222db057b09452d8c0a844e0b28f2dd2023-12-22T14:15:38ZengMDPI AGInternational Journal of Turbomachinery, Propulsion and Power2504-186X2023-10-01843910.3390/ijtpp8040039Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural NetworkHanbing Ma0Oliver Kirschner1Stefan Riedelbauch2Institute of Fluid Mechanics and Hydraulic Machinery, University of Stuttgart, 70569 Stuttgart, GermanyInstitute of Fluid Mechanics and Hydraulic Machinery, University of Stuttgart, 70569 Stuttgart, GermanyInstitute of Fluid Mechanics and Hydraulic Machinery, University of Stuttgart, 70569 Stuttgart, GermanyThe head and flow rate of a pump characterize the pump performance, which help determine whether maintenance is needed. In the proposed method, instead of a traditional flowmeter and manometer, the operating points are identified using data collected from accelerometers and microphones. The dataset is created from a test rig consisting of a standard centrifugal water pump and measurement system. After implementing preprocessing techniques and Convolutional Neural Networks (CNNs), the trained models are obtained and evaluated. The influence of the sensor location and the performance of different signals or signal combinations are investigated. The proposed method achieves a mean relative error of 7.23% for flow rate and 2.37% for head with the best model. By employing two data augmentation techniques, performance is further improved, resulting in a mean relative error of 3.55% for flow rate and 1.35% for head with the sliding window technique.https://www.mdpi.com/2504-186X/8/4/39standard water pumpoperating point estimationconvolutional neural network
spellingShingle Hanbing Ma
Oliver Kirschner
Stefan Riedelbauch
Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural Network
International Journal of Turbomachinery, Propulsion and Power
standard water pump
operating point estimation
convolutional neural network
title Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural Network
title_full Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural Network
title_fullStr Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural Network
title_full_unstemmed Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural Network
title_short Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural Network
title_sort systematic comparison of sensor signals for pump operating points estimation using convolutional neural network
topic standard water pump
operating point estimation
convolutional neural network
url https://www.mdpi.com/2504-186X/8/4/39
work_keys_str_mv AT hanbingma systematiccomparisonofsensorsignalsforpumpoperatingpointsestimationusingconvolutionalneuralnetwork
AT oliverkirschner systematiccomparisonofsensorsignalsforpumpoperatingpointsestimationusingconvolutionalneuralnetwork
AT stefanriedelbauch systematiccomparisonofsensorsignalsforpumpoperatingpointsestimationusingconvolutionalneuralnetwork