Fixed-point DSP Algorithm for Flux Estimation in DTC IM Drive

Author

Nikolic, Leksandar B. ; Jeftenic, Borislav I.

Author_Institution

Electr. Eng. Inst., Belgrade

Volume

2

fYear

2005

fDate

21-24 Nov. 2005

Firstpage

1582

Lastpage

1585

Abstract

A precise and simple for implementation DSP algorithm for flux estimation in direct torque controlled induction motor drive is presented. The main goal is to avoid using complex mathematical functions (square root and arc tan) and/or look-up tables for calculating flux amplitude and position. Complete algorithm, written in C, is at first analyzed in a simulation model and the final performance is examined on an Intel´s 80C196KC20 microcontroller. Comparison to the standard functions in respect to the accuracy, execution time and implementation simplicity shows accurate performance needed for flux control in direct torque controlled drives

Keywords

control engineering computing; induction motor drives; machine control; magnetic flux; signal processing; torque control; C language; Intel 80C196KC20 microcontroller; complex mathematical functions; digital signal processing algorithm; direct torque control induction motor drive; flux amplitude calculation; flux estimation; flux position calculation; look-up tables; Couplings; Current measurement; Digital signal processing; Force measurement; Inverters; Microcontrollers; State estimation; Stators; Torque control; Voltage; DSP; DTC; algorithm; estimation; software;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer as a Tool, 2005. EUROCON 2005.The International Conference on

Conference_Location

Belgrade

Print_ISBN

1-4244-0049-X

Type

conf

DOI

10.1109/EURCON.2005.1630270

Filename

1630270