Title :
Sensorless flow rate estimation in frequency-converter-driven fans
Author :
Tamminen, Jussi ; Ahonen, Tapani ; Ahola, J. ; Kestila, J.
Author_Institution :
LAPPEENRANTA Univ. OF Technol., Lappeenranta, Finland
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
Fan systems account for approximately 11 % of the industrial electricity consumption. Previous studies indicate that there is a significant energy savings potential in fan systems. Increase in the price of electricity has brought forth a need for easily implementable methods to measure the efficiency of fan systems. In this paper, a sensorless fan operating point estimation method is introduced and the limitations of the method are discussed. Operation of the sensorless estimation method is validated through laboratory measurements. It is found that the estimation method is accurate enough to be used for energy efficiency analyses and the detection of inefficient fan operation.
Keywords :
energy conservation; fans; frequency convertors; sensorless machine control; energy efficiency analysis; energy savings potential; fan systems; frequency-converter-driven fans; sensorless fan operating point estimation; sensorless flow rate estimation; Accuracy; Energy efficiency; Estimation; Fans; Frequency conversion; Frequency estimation; Velocity control; Efficiency; Estimation technique; Industrial application; Variable speed drives;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
