Search Results - "Abdollahi, Rohollah"

Impact of wind on strength and deformation of solar photovoltaic modules by Abdollahi, Rohollah

“…Maritime transport is one of the most important modes of transportation and plays an important role in facilitating world trade. In recent years, the maritime…”
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Power quality enhancement of a T-connected autotransformer based on 72-pulse AC–DC converter with rated power reduction by Abdollahi, Rohollah

“…In this paper, a thorough analysis is carried out in order to achieve an optimal design of a T-connected autotransformer based on 72-pulse AC–DC converter…”
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Design of lighting system for sacred places with the approach of improving technical and economic conditions by Rohollah Abdollahi

“…In Islamic countries, many sacred places reflect the history, culture, and tradition of the nations. One of the main issues that can improve the architecture…”
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Multi-Phase Shifting Autotransformer Based Rectifier by Abdollahi, Rohollah

“…In this paper, a thorough analysis is carried out in order to achieve an optimal design of a forty-four pulse rectifier. In this study, a novel Multi-phase…”
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Suggestion of DC side passive harmonic reduction circuits for industrial applications based on a comparative study by Abdollahi, Rohollah, Gharehpetian, Gevork B.

“…Here, the DC side passive harmonic reduction circuits (PHRCs) are compared from a technical and economic point of view. In researches on multipulse rectifiers…”
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Electric and magnetic comparison of two 10-phase autotransformers by Rohollah Abdollahi, Mahdi Golchob

“…To optimally select multi-pulse rectifiers (MPRs) used in industrial applications, the electrical and magnetic analysis must be performed simultaneously. Most…”
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A novel pulse multiplication circuit for reducing harmonic distortion of 12 pulse rectifiers in aircraft electrical power systems by Abdollahi, Rohollah, Salemnia, Ahmad, Abdolhosseini, Morteza

“…To improve the performance and reduce the total harmonic distortion (THD) of the autotransformer 12‐pulse rectifier, a novel pulse multiplication circuit (PMC)…”
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A low‐rating 40‐pulse AC–DC rectifier based on a new passive harmonic mitigation circuit by Abdollahi, Rohollah, B. Gharehpetian, Gevork

“…A novel 40‐pulse autotransformer rectifier is proposed to reduce total harmonic distortion (THD) of the input current in aircraft electrical power systems. The…”
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Pulse Tripling Circuit and Twelve Pulse Rectifier Combination for Sinusoidal Input Current by Abdollahi, Rohollah, Gharehpetian, Gevork B., Anvari-Moghaddam, Amjad, Blaabjerg, Frede

“…In this paper, a novel pulse tripling circuit (PTC) is suggested, to upgrade a polygon autotransformer 12-pulse rectifier (12-PR) to a 36-pulse rectifier…”
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Multi-Pulse Rectifier Based on an Optimal Pulse Doubling Technique by Abdollahi, Rohollah, Gharehpetian, Gevork B., Mohammadi, Fazel, Prakash P, Saravana

“…This paper presents pulse multiplication technology based on an optimal Pulse Doubling Technique (PDT) to upgrade a 28-Pulse Rectifier (28-PR) to a 56-PR. The…”
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Impact of replacing overhead lines with aerial bundled cable, and installation of new transformers to reduce losses and improve distribution network voltage profiles, technical and economic analysis by Abdollahi, Rohollah, Moradi, Majid, Alizadeh, Hossein, Rafiei, Abolfazl

“…Today, reducing distribution system losses is a top priority in the design and operation of electricity grids. In an electricity grid, a significant percentage…”
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Designing and Implementing a Lighting Control System Based on Constrained Info-Fuzzy, to Save Energy and Satisfy Users by Abdolhosseini, Morteza, Abdollahi, Rohollah

“…Considering that lighting plays an important role in energy consumption in buildings, extensive studies have been conducted in recent years to increase…”
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A 12-pulse rectifier with passive harmonic reduction based on UIPT in more electric aircrafts by Abdollahi, Rohollah

“…Purpose The purpose of this paper is to provide a T autotransformer based 12-pulse rectifier with passive harmonic reduction in more electric aircraft…”
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Harmonics mitigation approach by using pulse‐doubling circuit in the AC–DC rectifier by Abdollahi, Rohollah, Badfar, Ehsan

“…Summary In this research, a novel pulse‐doubling circuit (PDC) is employed to upgrade the 28‐pulse rectifier to the efficient 56‐pulse rectifier. The main…”
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Design of HHO-PID Controllers for Load Angle of Power Plant Synchronous Generators by Abdolhosseini, Morteza, Abdollahi, Rohollah

“…Accurate analysis of load angle stability of the synchronous generator depends on considering mechanical parameters in addition to electrical parameters in…”
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Cover Image by Abdollahi, Rohollah, Badfar, Ehsan

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Auxiliary Pulse Tripling Circuit with Low kVA Rating to Reduce Input Current Harmonic Distortion in 12 Pulse Rectifier by Rohollah Abdollahi, Morteza Abdolhosseini

“…In recent years, to increase the number of pulses in 12-pulse autotransformer rectifiers (12-PARs) and reduce the input current total harmonic distortion…”
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Modeling by order reducing the load angle of a three-phase synchronous generator and designing an AOA-PID controller to control the load angle by morteza abdolhosseini, Rohollah Abdollahi

“…One of the important factors that are always discussed in the study of power systems is the issue of power system stability. In this paper, the load angle…”
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Harmonic reduction using a novel multipulse AC-DC converter by Abdollahi, Rohollah

“…Purpose For direct torque controlled induction motor drives, an effective solution to eliminate harmonics is the use of multipulse alternating current…”
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Comparative Analysis of Two Novel Passive Harmonic Suppression Circuits for Industrial Applications by Rohollah Abdollahi, Alireza Reisi

“…The 12-pulse diode rectifier (12-PDR) fails to comply with the limits of total harmonic distortion (THD) of supply current to be less than 5% specified in the…”
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