Romanian Journal of Information Science and Technology (ROMJIST)

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ROMJIST is a publication of Romanian Academy,
Section for Information Science and Technology

Editor – in – Chief:
Radu-Emil Precup

Honorary Co-Editors-in-Chief:
Horia-Nicolai Teodorescu
Gheorghe Stefan

Secretariate (office):
Adriana Apostol
Adress for correspondence: romjist@nano-link.net (after 1st of January, 2019)

Editing of the printed version: Mihaela Marian (Publishing House of the Romanian Academy, Bucharest)

Technical editor
of the on-line version:
Lucian Milea (University POLITEHNICA of Bucharest)

Sponsors:
• National Institute for R & D
in Microtechnologies
(IMT Bucharest), www.imt.ro
• Association for Generic
and Industrial Technologies (ASTEGI), www.astegi.ro

ROMJIST Volume 25, No. 3-4, 2022, pp. 303-321, Paper no. 724/2022
 

Ravish H. HIRPARA
State Estimation of Permanent Magnet Synchronous Motor Dynamics Using Higher-order Continuous-Discrete Filtering Equations

ABSTRACT: In electrical machine theory the permanent magnet synchronous motor (PMSM) dynamics has been studied extensively. In this paper we have derived filtering equations of PMSM dynamics using higher-order continuous-discrete filter and simulated these equations with two sets of initial values. In this paper process noise is involved with continuous state dynamics of the PMSM and that is coupled with discrete measurement equation, which is involved with discrete measurement noise. Notably, the filtering equations of this paper explicit contribution of the predicted estimate and the observation noise to filtered estimate. The filtering theory presented in this paper will be useful to applied mathematicians, Control engineers for better understanding of the continuous-discrete filtering equation of the non-linear dynamics. Especially for stochastic problems arising from intelligent industrial systems.

KEYWORDS: Continuous-discrete filtering equations; non-linear filtering; PMSM dynamics; stochastic differential equations; stochastic systems

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