Energy efficiency and performance considerations of variable frequency drives for air-cooled heat exchangers

Author

Endrejat, Frieder ; Van Niekirk, H.R. ; Delport, G. Johan

Author_Institution

Dept. of Electr. & Electron. Eng., Pretoria Univ., South Africa

Volume

1

fYear

1998

fDate

7-10 Jul 1998

Firstpage

312

Abstract

The optimal operation of variable frequency drives (VFDs) are described for application on air-cooled heat exchangers (ACHEs) with multiple induction motors. The optimal excitation control of the motors is indicated for the desired airflow production. The effect of the variable airflow on the heat transfer performance of the ACHE is indicated. The effect and importance of different operating configurations of the motors are indicated

Keywords

cooling; heat exchangers; induction motor drives; machine control; optimal control; variable speed drives; air-cooled heat exchangers; airflow production; energy efficiency; heat transfer performance; motor operating configurations; multiple induction motors; optimal excitation control; optimal operation; performance considerations; variable airflow; variable frequency drives; Core loss; Electric variables control; Energy efficiency; Fluid flow control; Frequency; Hysteresis motors; Induction motors; Mechanical variables control; Resistors; Temperature control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 1998. Proceedings. ISIE '98. IEEE International Symposium on

Conference_Location

Pretoria

Print_ISBN

0-7803-4756-0

Type

conf

DOI

10.1109/ISIE.1998.707798

Filename

707798