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Article

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Title

Improved Method for Position Estimation Using a Two-Dimensional Scheduling Array

Authors

[ 1 ] Instytut Automatyki i Inżynierii Informatycznej, Wydział Elektryczny, Politechnika Poznańska | [ P ] employee

Title variant

HR Unaprijeđena metoda estimacije položaja zasnovana na upotrebi dvodimenzionalnog polja za ažuriranje parametara

Year of publication

2015

Published in

Automatika

Journal year: 2015 | Journal volume: vol. 56 | Journal number: no. 3

Article type

scientific article

Publication language

english

Keywords
EN
  • observers
  • PMSM
  • scheduling
  • sensorless control
  • variable speed drives
HR
  • estimatori
  • PMSM
  • ažuriranje parametara
  • bezsenzorsko upravljanje
  • elektromotorni pogon promjenjive brzine
Abstract

EN The paper presents results of studies on the position estimation for the permanent magnet synchronous motor (PMSM) drive using gain scheduling technique for tuning the observer’s parameters. It allows a good estimation accuracy in wide range of working point change. Such observer with multi integral correction function improves the performance, but need to modify its parameters according to its speed and load. Novelty is the use of a two-dimensional gain scheduling technique and the use in the sensorless drive, where traditional solution is simple one-input scheduling variable - mainly on drives with position sensors. The look-up table output is processed using bilinear interpolation. Position observer is based on back EMF estimation. It uses predefined reference matrices of parameters, which are interpolated and depend on drive’s operating point.

HR U radu su predstavljeni rezultati studija vezanih za estimaciju položaja sinkronog motora s permanentnim magnetima (PMSM) uz korištenje regulatora s podesivim pojačanjem za adaptaciju parametara estimatora. Metoda pokazuje dobru točnost estimacije u širokom rasponu radnog područja. Ovakav estimator s više integracijskih korekcijskih funkcija poboljšava performanse, ali i zahtijeva adaptaciju parametara ovisno o brzini i teretu. Novost predstavlja korištenje dvodimenzionalnog podešavanja pojačanja regulatora te primjena u bezsenzorskom upravljanju elektromotornim pogonom, gdje se tradicionalno koristi jednostavno ažuriranje jedne varijable—prije svega kod elektromotornih pogona sa senzorom za poziciju. Pregledna tablica izlaza koristi se uz bilinearnu interpolaciju. Estimator položaja zasnovan je na estimaciji protuelektromotorne sile. Estimator koristi unaprijed određene referentne matrice parametara koje se interpoliraju te ovise o radnoj točki.

Pages (from - to)

331 - 340

DOI

10.7305/automatika.2015.12.732

URL

https://www.tandfonline.com/doi/abs/10.7305/automatika.2015.12.732

Ministry points / journal

15

Impact Factor

0,311

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