Microcontroller based efficiency-maximization for a brushless doubly-fed machine pump drive

Author

Gorti, B.V. ; Alexander, G.C. ; Spée, R. ; Wallace, A.K.

Author_Institution

Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA

fYear

1995

fDate

5-7Jan 1995

Firstpage

377

Lastpage

381

Abstract

A 60 HP brushless doubly-fed machine (BDFM) pump drive is to replace a wound rotor induction machine (WRIM) drive in a local waste-water treatment plant. This paper discusses a simple, microcontroller based search algorithm to maximize the efficiency of the BDFM pump drive. The algorithm minimizes the total input power that is supplied to the drive at any speed and load condition. This algorithm can be implemented on the same process controller as used for pump drive speed control. While the scheme is described for a pump drive application. It can be used for any BDFM adjustable speed drive. Control design and implementation details are presented. Experimental results based on a laboratory prototype illustrate speed control and efficiency maximization

Keywords

brushless machines; induction motor drives; microcontrollers; pumps; search problems; velocity control; water treatment; brushless doubly-fed machine pump drive; efficiency maximization; induction motor drive; microcontroller based search algorithm; speed control; waste-water treatment plant; Control design; Induction machines; Laboratories; Microcontrollers; Power supplies; Process control; Pumps; Variable speed drives; Velocity control; Wounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Automation and Control, 1995 (I A & C'95), IEEE/IAS International Conference on (Cat. No.95TH8005)

Conference_Location

Hyderabad

Print_ISBN

0-7803-2081-6

Type

conf

DOI

10.1109/IACC.1995.465811

Filename

465811