A1 Journal article (refereed), original research

Variable Speed Drive Based Estimation of the Leakage Rate in Compressed Air Systems

Publication Details
Authors: Pöyhönen Santeri, Ahola Jero, Ahonen Tero, Hammo Simo, Niemelä Markku
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Publication year: 2018
Language: English
Related Journal or Series Information: IEEE Transactions on Industrial Electronics
ISSN: 0278-0046
eISSN: 1557-9948
JUFO-Level of this publication: 3
Open Access: Not an Open Access publication


is a significant cause of energy losses in compressed air systems. This paper presents
a novel method for estimation of the leakage flow rate of a screw
compressor-powered compressed air system using variable speed drive based soft
sensing. The proposed method utilizes an identification run sequence applied in
the control scheme of the variable speed drive at a time of no intended
compressed air consumption. Data from a mass flow soft sensor of the screw
compressor and pressure measurement are employed to produce estimates for the
compressed air system volume and leakage mass flow rate as a function of system
pressure. The feasibility of the approach is verified with laboratory
measurements. The proposed method offers a practical and effective solution for
monitoring of leakage in compressed air systems.

Last updated on 2019-13-03 at 12:00