نتایج جستجو برای: phase converter

تعداد نتایج: 619443  

ژورنال: :روش های هوشمند در صنعت برق 0
علیرضا سیادتان استادیار - دانشکده مهندسی برق، واحد تهران غرب، دانشگاه آزاد اسلامی، تهران، ایران سیدابراهیم افجه استاد - دانشکده مهندسی برق، دانشگاه شهید بهشتی، تهران، ایران هادی آقازاده دانشجوی دکتری – دانشکده مهندسی برق، دانشگاه شهید بهشتی، تهران، ایران

در این مقاله روشی موثر برای استخراج دو شکل موج شبه سینوسی با زاوایای متعامد برای کاربرد در موتورهای القایی دو فاز مورد بررسی قرار گرفته است. به بیان دقیق تر استراتژی کلیدزنی پیشنهادی به نحوی است که ولتاژ تولید شده توسط مبدل ماتریسی در دو فاز 90 درجه با یکدیگر اختلاف فاز دارند. این روش کلیدزنی برای عملکرد موتورهای القایی دو فاز بسیار مناسب است. فرکانس ولتاژ تولیدی آیتم مهمی برای این نوع موتورها ...

2004
L. Xu V. G. Agelidis

A unified power flow controller (UPFC) based on the flying capacitor (FC) multilevel voltage-source converter (VSC) topology with phase-shifted sinusoidal pulse-width modulation (PWM) control is presented. This converter allows higher power handling, potentially lower power loss, lower harmonic distortion and hence less filtering requirements when compared with the typical two-level counterppar...

2001
Hao Chen Dong Zhang

The paper presents the principles of the decoupling control of the phase voltage in the Switched Reluctance motor drive for the direct-drive joint of the robot. The motor drive system elements, such as the structure of the three-phase 6/10 structure Switched Reluctance motor and the rotor position, the main circuit topology of the three-phase bifilar winding power converter and the pulse width ...

2011
A. Karaarslan I. Iskender

This paper presents two current control techniques of an ac-dc boost converter to obtain unity power factor (PF). Single phase high power factor rectification is the most frequently accomplished using a boost converter. This converter reshapes distorted input current waveform to approximate a sinusoidal current that is in phase with the input voltage. There are several current control technique...

2009
Rixin Lai Dushan Boroyevich Rolando Burgos Yilu Liu Tao Lin

The development of a high-power-density three-phase ac converter has been a hot topic in power electronics due to the increasing need in applications like electric vehicles, aircraft and aerospace, where light weight and/or a low volume is usually a must. There are many challenges due to the complicated relationships in a three-phase power converter system. In addition, with the emerging SiC de...

2012
P. Sivaraman A. Nirmalkumar

This paper proposes an implementation of Single Ended Primary Inductor Converter (SEPIC) converter and Voltage Source Inverter for an Induction Motor using Photovoltaic energy as a source. Generally the larger number of drives employed for industrial and commercial applications are induction motor drives. To run such kind of motor from the PV source, it is proposed to have a DCDC converter and ...

2012
M. Rameshkumar Y. Sreenivasa Rao

The Matrix converter is a forced commutated Cyclo-converter with an array of controlled semi conductor switches that connects directly the three phase source to the three phase load. The matrix converter is a direct AC-AC Converter. It has no limit on output frequency due to the fact that it uses semiconductor switches with controlled turn-off capability. The simultaneous commutation of control...

2012
B. SHIVA V. RAJ KUMAR

This project proposes a novel three phase nine switch AC/AC converter topology. This converter features sinusoidal inputs and outputs, unity power factor, and more importantly, low manufacturing cost. The Operating principle of the Converter is elaborated, its modulation schemes are also discussed, and experimental results from a 5kVA prototype system are provided.

2014
A. PAWAR

This paper presents a novel matrix converter based topology with less number of semiconductor switches. The proper switching sequence of matrix converter is used to drive BLDC motor directly from single phase without dc link capacitor. A matrix converter fed BLDC motor is simulated in MATLAB. The proposed technique is simple to implement and cost effective. Keywords— Permanent magnet (PM), Brus...

2009
E. Babaei S. H. Hosseini G. B. Gharehpetian

This paper presents a new algorithm for the determination of DC voltage source levels of asymmetric multilevel converters. This technique provides more flexibility to the designer and can generate a large number of levels (odd and even), with minimum number of single-phase full-bridge inverters. This point results in the reduction of switches number, losses, cost of the converter, installation ...

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