A NOVEL APPROACH FOR INDUCTION MACHINE PARAMETER ESTIMATION

Autor/autori: Prof. Eng. Mihai IORDACHE, PhD, Prof. Eng. Lucia DUMITRIU, PhD, Lecturer Eng. Dragos NICULAE, PhD, Prof. Eng. Lucian MANDACHE, PhD

Rezumat: Lucrarea prezinta o noua metoda de estimare a unor parametri ai motoarelor cu inductie, bazata pe rezultatele unor masurari realizate asupra sistemul real. Se estimeaza parametrii care sunt dificil sau imposibil sa fie masurati in mod direct. Pornind de la schema echivalenta a unei faze a motorului functionand in regim sinusoidal si neglijand saturatia circuitului magnetic, se genereaza, folosind metoda nodala modificata, expresia simbolica a impedantei de intrare in domeniul operational. Parametrii doriti se calculeaza printr-un algoritm iterativ bazat pe metoda minimizarii erorii de iesire, unde parametrii de interes sunt variabilele unui sistem de ecuatii independente.

Cuvinte cheie: masina de inductie, estimarea aparametrilor, metoda minimizarii erorii de iesire, functie de transfer


Abstract: Our paper present a new method to estimate the induction motor parameters based on some measurements performed on the real system, the parameters of interest being those which are difficult or impossible to be measured directly. Starting from the equivalent scheme on a phase of the induction motor in sinusoidal behavior and neglecting the saturation phenomena, we generate the driving-point impedance (the input impedance) in full symbolic form, obtaining an appropriate frequency space representation based on the complex or Laplace modified nodal equations (MNE)

Keywords: induction machine, parameter estimation, output error method, transfer function

 

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