یک روش کنترل بدون حسگر جدید برای موتورهای DC بدون جاروبک مبتنی بر شار پیوندی خط به خط

نوع مقاله: پژوهشی

نویسندگان

دانشگاه صنعتی مالک اشتر

چکیده

در این مقاله یک روش کنترل بدون حسگر جدید برای موتورهای DCبدون جاروبک (موتور BLDC) معرفی شده است. این روش مبتنی بر تابع شار خط به خط است. تابع مذکور مستقل از سرعت است و نسبت به تغییر بار حساس نمی باشد. با استفاده از این روش می توان موتور را در بازه وسیعی از سرعت کنترل نمود. خطای زاویۀ کموتاسیون که ناشی از خطای اندازه گیری و تغییر پارامترهای موتور است؛ ریپل گشتاور ایجاد کرده و بازده موتور را کاهش می دهد. در این مقاله خطای زاویۀ کموتاسیون به صورت سه بعدی تحلیل حساسیت شده است تا میزان وابستگی آن به خطای اندازه گیری و تغییر پارامترهای موتور مشخص شود. علاوه برآن میزان کاهش گشتاور و بازده موتور ناشی از خطای زاویۀ کموتاسیون بررسی می گردد. و همچنین پاسخ سیستم به تغییر سرعت و گشتاور نیز مطالعه شده است. کارایی روش پیشنهادی به کمک نتایج شبیه سازی نشان داده شده است.

کلیدواژه‌ها


عنوان مقاله [English]

Performance Evaluation of Position-Sensorless Operation of the BLDC Motors based on Line to Line Flux Linkage

نویسندگان [English]

  • mehrdad jafar booland
  • mohammad hadi rismani
چکیده [English]

This paper investigates the sensorless operation of the brushless DC permanent magnet (BLDC-PM) motors based on the line to line flux function. The three dimensional sensitivity analysis of the line to line flux function is provided. This analysis reveals the influence of the measurement error and motor parameters variation on the electrical torque and motor efficiency. Moreover, the dependency of the method to speed and load variation is studied. The effectiveness of the mentioned method is demonstrated through simulation results.

کلیدواژه‌ها [English]

  • Brushless DC PM motor
  • sensorless operation
  • flux function
  • Sensitivity analysis
 

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