محمدرضا عزیزیان

[ 1 ] - یک ساختار ترکیبی برای کنترل توان لغزش موتور القائی روتور سیم‌پیچی شده با کنترل بدون حسگر سرعت

[ 2 ] - A Novel Algorithm for Rotor Speed Estimation of DFIGs Using Machine Active Power based MRAS Observer

This paper presents a new algorithm based on Model Reference Adaptive System (MRAS) and its stability analysis for sensorless control of Doubly-Fed Induction Generators (DFIGs). The reference and adjustable models of the suggested observer are based on the active power of the machine. A hysteresis block is used in the structure of the adaptation mechanism, and the stability analysis is performe...

[ 3 ] - تحلیل پایداری دینامیکی یک مشاهده‌گر تطبیقی کاهش مرتبه یافته جدید مبتنی بر تخمین جریان روتور برای کنترل بدون سنسور DFIG

روشهای متعددی برای تخمین سرعت و کنترل بدون سنسور ماشینهای القایی وجود دارد که از این میان روشهای مبتنی بر مشاهده‌گرهای کاهش مرتبه یافته عملکرد مناسبی از خود نشان داده‌اند. در این مقاله یک روش تخمین سرعت کاهش مرتبه یافته برای کنترل بدون سنسور DFIG معرفی شده که در آن از جریانهای روتور و شار استاتور به عنوان متغیرهای حالت استفاده شده است و دینامیک خطای جریانهای روتور برای مکانیزم تطابق به کار رفته...

[ 4 ] - بهبود بازده انرژی و ارزیابی اقتصادی موتورسیکلت الکتریکی با حضور موتور چهار فاز AFPM و ترکیب ابرخازن و باتری

Increasing the demand for electric vehicles, makes the manufactures to concentrate on the research of new energy storage devices, electro motors, and power electronic devices. The main subject in designing an electric motorcycle with four-phase AFPM and its full wave converter is to select suitable energy storage system and add on turbo-acceleration mechanism. Choosing the suitable energy stora...

[ 5 ] - Sensorless Commutation of BLDC Motor without Low Pass Filter and Phase Shifter

 In this paper, a novel sensorless commutation method for BLDC motors is presented to simultaneously eliminate phase shifter and low-pass filter. An analytical model of the motor is presented and ripples resulted from the current commutation are investigated in detail. By detecting the zero crossing points of the unfiltered voltages of the motor terminals referred to the ground and DC link, the...

[ 6 ] - A model-based PDPC method for control of BDFRG under unbalanced grid voltage condition using power compensation strategy

Brushless doubly fed reluctance generator (BDFRG) has been recently suggested as a wind generator. Different control methods are presented in literature for the BDFRG, but there is a gap on control under unbalanced grid voltage condition (UGVC). This paper presents a predictive direct power control (PDPC) method for the BDFRG under UGVC. The proposed PDPC method is based on power compensation s...

[ 7 ] - Multi-level Energy Management Strategy for Fuel Cell Vehicle Based on Battery Combined Efficiency and Identification of Vehicle Operation State

The design of energy management strategy is one of the main challenges in the development of fuel cell electric vehicles. The proposed strategy should be well responsive to provide demanded power of fuel cell vehicle for motion, acceleration, and different driving conditions, resulting in reduced fuel consumption, increased lifetime of power sources and increased overall fuel efficiency. The pu...