Journal of Electrical Engineering : Volume 17 / 2017 - Edition : 2

Sensorless Control of Matrix Converter-Fed Synchronous Reluctance Motors Based on Direct Flux Vector Control Method

Arzhang Yousefitalouki
Gianmario Pellegrino
electrical machines and drives
A Sensorless control technique based on direct flux vector control scheme is proposed for matrix converter-fed synchronous reluctance motor drives. The amplitude of stator flux and current component quadrature to stator flux are closed loop controlled in constant switching frequency. A hybrid current-voltage model based flux observer is used so that at low speeds stator flux is estimated through current-to-flux maps and at high speeds, flux estimation is based on back-electromotive force integration. Moreover, a hybrid position and speed observer is proposed in order to estimate rotor position in a wide speed range. At low speeds and also in standstill, rotor position is retrieved based on high-frequency signal injection while at high speeds, back-EMF based model is used to estimate the rotor position. Also, matrix converter is modulated based on indirect space vector modulation. Simulation results for a 2.2 kW synchronous reluctance motor are presented to show the effectiveness of proposed sensorless drive.
Download Article:
This article is written in Adobe PDF format ( .pdf file ).To view this article you need to download the file. Please rightclick on the link below and then select "Save target as" to download the file to your harddrive. Download Article
Jee homepage | Jee Archive | Hard Copy | Publishers | Contact