نتایج جستجو برای: predictive current control strategy

تعداد نتایج: 2383073  

Journal: :E3S web of conferences 2021

Modular Multilevel Converter (MMC) has the characteristics of high voltage level and low switching frequency. The traditional modular multilevel converter circulating current control strategy mostly adopts PI principle, parameter setting is complicated accuracy not high, process more difficult. Model predictive optimal method based on model in existing time domain. This paper proposes a Predict...

Maysam Sadeghi, Mohamad Agha Shafiyi Mojtaba Khederzadeh,

This paper presents a grid connected photovoltaic system, which acts as both power generator and active power filter (APF), based on Flying Capacitor Multicell (FCM) converter. Increase in the number of output voltage levels, natural self-balancing of flying capacitors and dc link voltage and lower power rating of components are the main futures of FCM converter compared with conventional multi...

Maysam Sadeghi, Mohamad Agha Shafiyi Mojtaba Khederzadeh,

This paper presents a grid connected photovoltaic system, which acts as both power generator and active power filter (APF), based on Flying Capacitor Multicell (FCM) converter. Increase in the number of output voltage levels, natural self-balancing of flying capacitors and dc link voltage and lower power rating of components are the main futures of FCM converter compared with conventional multi...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1392

the aim of the current study was to investigate the relationship among efl learners learning style preferences, use of language learning strategies, and autonomy. a total of 148 male and female learners, between the ages of 18 and 30, majoring in english literature and english translation at islamic azad university, central tehran were randomly selected. a package of three questionnaires was ad...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - پژوهشکده ادبیات 1392

abstract the aim of the present study is to explore the impact of the cognitive reading strategy instruction on learners reading self-efficacy and their reading achievement. in order to fulfill this purpose, from 120 participants, 90 intermediate efl learners as an experimental group were chosen from three different educational settings namely, yazd university, yazd science and art un...

Journal: :Electronics 2023

This paper presents a medium-voltage drive based on an open-end winding induction machine supplied by multilevel power converter topology. The consists of cascaded two-level three-phase voltage source inverters (VSI) connected to each side the windings and VSI is fed isolated DC supply. topology has been previously reported in literature as sinusoidal pulse-width modulation operating open loop....

2016
Zhanfeng Song Yanjun Tian Zhe Chen Yanting Hu Frede Blaabjerg

A predictive current control strategy can realize flexible regulation of three-phase grid-tied converters based on system behaviour prediction and cost function minimization. However, when the predictive current control strategy with conventional switching patterns is adopted, the predicted duration time for voltage vectors turns out to be negative in some cases, especially under the conditions...

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...

Journal: :مهندسی قدرت ایران 0
maysam sadeghi shahid beheshti university mojtaba khederzadeh shahid beheshti university mohamad agha shafiyi shahid beheshti university

this paper presents a grid connected photovoltaic system, which acts as both power generator and active power filter (apf), based on flying capacitor multicell (fcm) converter. increase in the number of output voltage levels, natural self-balancing of flying capacitors and dc link voltage and lower power rating of components are the main futures of fcm converter compared with conventional multi...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - دانشکده زبانهای خارجی 1393

this study investigated (a) the learners’ existing reading strategy repertoire, (b) the effect of instruction in reading strategies on learners’ strategic performance, and (c) the effect of explicit instruction in top-down reading strategies on reading comprehension ability of intermediate learners. the study was conducted with 40 intermediate efl learners in two groups of experimental and cont...

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