Brushless DC motor control under varying load conditions
tarafından
Kara, Salih Murat, author.
Başlık
:
Brushless DC motor control under varying load conditions
Yazar
:
Kara, Salih Murat, author.
Yazar Ek Girişi
:
Kara, Salih Murat, author.
Fiziksel Tanımlama
:
xi, 75 leaves: illustrarions, charts;+ 1 computer laser optical disc.
Özet
:
Brushless direct current motors (BLDCMs) are popular in various applications due to their high-power density, wide speed range and control flexibility. They work without brushes and require electronic commutation, where stator's currunt state is synchronized with rotor position. Various methods are used to determine the rotor position. Sensorless method of position detection is preferable instead of external sensors, because external sensors are not cost effective and they create wiring complexity. This thesis presents control methods and driver algorithms for BLDCM under variable load conditions from start-up to continuous run with speed regulation. The inductive sense method, which is one of the sensorless position measurement methods, is used when the motor is stationary and at low speed. The rotor position was accurately calculated by using this method based on inductance differences. Afterwards, back electromotive force (BEMF) sense method was used at high speed.The drive parameters, mainly the step time and excitation step, are adjusted according to the rotor position to drive the motor efficiently. The dynamic control of the drive parameters is done by estimating the load with the rotor position.
Konu Başlığı
:
Brushless direct current electric motors -- Automatic control.
Electric motors, Brushless -- Automatic control.
Yazar Ek Girişi
:
Özdemirel, Barbaros,
Tüzel Kişi Ek Girişi
:
İzmir Institute of Technology. Electronics and Communication Engineering.
Tek Biçim Eser Adı
:
Thesis (Master)--İzmir Institute of Technology: Electronics and Communication Engineering.
İzmir Institute of Technology: Electronics and Communication Engineering--Thesis (Master).
Elektronik Erişim
:
Library | Materyal Türü | Demirbaş Numarası | Yer Numarası | Durumu/İade Tarihi |
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IYTE Library | Tez | T001733 | TK2511 .K18 2017 | Tez Koleksiyonu |