Sensorless Control of Synchronous Machines Based on Direct Speed and Position Estimation in Polar Stator-Current Coordinates

Autor:	Dirk Paulus, Jean-Francois Stumper, Ralph Kennel
Rok vydání:	2013
Předmět:	Electronic speed control Engineering Vector control Stator business.industry law.invention Quantitative Biology::Subcellular Processes Inductance law Robustness (computer science) Control theory Control system Torque Electrical and Electronic Engineering business Synchronous motor
Zdroj:	IEEE Transactions on Power Electronics. 28:2503-2513
ISSN:	1941-0107 0885-8993
DOI:	10.1109/tpel.2012.2211384
Popis:	This paper proposes a sensorless control scheme for a surface-mounted permanent-magnet synchronous machine (PMSM) based on the back-electromotive force voltage. It is a direct estimation method, meaning the rotor position is directly calculated based on stator-current measurements and the stator voltage commands as well as on the knowledge of stator resistance and stator inductance, but without the use of an asymptotic observer or integration of speed, respectively, flux. The estimated angle is filtered and used directly for sensorless field-oriented current and torque control. Analogously, the rotor speed is also directly calculated and used for sensorless speed control. A polar stator-current coordinate representation is chosen for the stator currents such that the scheme is easily extendable with filters to cope with measurement noise. A comparison to a reduced-order observer highlights the robustness advantage. Experimental results confirm good dynamical performance, even at low speeds.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ad9dcb9f36351959bbbf6242d8ba6e04 https://doi.org/10.1109/tpel.2012.2211384 Zobrazit plný text záznamu