کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
772672 897723 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel method for estimating the initial rotor position of PM motors without the position sensor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
A novel method for estimating the initial rotor position of PM motors without the position sensor
چکیده انگلیسی

Permanent magnet (PM) motors have been used widely in the industrial applications. However, a need of the position sensor is a drawback of their control system. The sensorless methods using the back-EMF (electromotive force) cannot detect the rotor position at a standstill; recently, a few methods proposed to detect the initial rotor position, but they have high estimation error which reduces starting torque of the motor. Therefore, in this paper, a novel method to detect the initial rotor position of the PM motors is proposed, first, by using a space vector model, response of the stator current space vector to the saturation of the stator core is analyzed; then a novel method based on the saturation effect is presented that estimates the initial rotor position and the maximum estimation error is less than 3.8°. Simulation results confirm this method is effective and precise, and variation of the motor parameters does not affect its precision.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 50, Issue 8, August 2009, Pages 1879–1883
نویسندگان
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