A Buck Power Factor Correction Converter with Predictive Quadratic Sinusoidal Current Modulation and Line Voltage Reconstruction

Yang, Shang-Hsien; Meng, Che-Hao; Chiu, Chaochang; Chang, Chih-Wei; Chen, Ke-Horng; Lin, Ying-Hsi; Lin, Shian-Ru; Tsai, Tsung-Yen

doi:10.1109/tie.2016.2527630

Cited by 21 publications

(9 citation statements)

References 19 publications

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“…The current through the inductor increases until the time instant when v Rs equals v D expressed in (35). By properly selecting the values of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 in control block to let r 1 = r 2 , t on can be got as…”

Section: Implementation Of the Control Strategymentioning

confidence: 99%

“…To improve the input PF and input current harmonics of the conventional buck PFC converter, some new control methods and new topologies are proposed [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

“…Amongst them, buck PFC converter is a good choice especially for a broad range of ac–dc applications due to its several advantages such as high efficiency, cost reduction, low output voltage and lifetime improvement. Moreover, owing to the advantage of being suitable for universal input, buck PFC converter is often used as a pre‐regulator [17–37].…”

Section: Introductionmentioning

confidence: 99%

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UPC strategy and implementation for buck–buck/boost PF correction converter

Memon

Yao

2018

IET Power Electronics

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Nowadays, low power factor (PF) is a serious problem that has gained more importance in power electronics area. In this study, a unity PF control (UPC) strategy for boundary conduction mode (BCM) buck-buck/boost PF correction converter is proposed. The proposed control strategy can achieve high PF and low total harmonic distortion by utilising the input and output voltages to modulate the on-time of both buck and buck/boost switches. The operating principles and comparative analysis of BCM buck-buck/boost converter with conventional non-UPC and UPC are analysed. For verifying the effectiveness of the proposed control strategy, the experimental verifications are carried out from a 100 W universal input prototype.

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Section: Implementation Of the Control Strategymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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UPC strategy and implementation for buck–buck/boost PF correction converter

Memon

Yao

2018

IET Power Electronics

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“…Furthermore, if a PFC is a boost type, the output DC voltage will be higher than the input, even with the obvious advantage of a continuous input current. To deal with a low-voltage load, buck-type PFCs are options, (8)(9)(10)(11)(12)(13) but the input current will be discontinuous and an active switch has to be driven on the high-voltage side. Therefore, a cascaded filter on the AC input side is necessary for achieving a better power factor.…”

Section: Introductionmentioning

confidence: 99%

Bridgeless Single-stage Step-down Power Factor Corrector under Synchronous Switching Control Scheme

Shen¹,

Chen²

2020

Sensors and Materials

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In this paper, a novel bridgeless power factor corrector (PFC) is proposed. The PFC can shape the waveform of the input current to be sinusoidal and in phase with the AC input voltage simply by sensing of the AC voltage, input current, and output voltage. That is, it is able to achieve a unity power factor. As compared with conventional PFCs, the proposed PFC possesses the particular features of high step-down voltage ratio, being bridgeless, galvanic isolation, and leakage energy recycling. All the active switches in the proposed PFC can be operated under an identical control signal. In addition, the output voltage can be regulated only by single-loop control, instead of dual-or multiloop control. Therefore, the control scheme for the PFC is simple and much easier to carry out. The operation principle, theoretical analysis, and hardware validation to verify the proposed PFC are described.

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“…Litaratürde, DGFD konvertörlerde GF'yi geliştirmek ve THB'yi düşürmek için farklı kontrol algoritmaları kullanılmaktadır. Bu kontrol algoritmaları geleneksel kontrol yöntemi, süreksiz kapasitör gerilim modlu yöntem, ortalama akım kontrolü, tahmini akım kontrolü ve diğer sinyal işlemeye yönelik dijital algoritmalardır [7,[9][10][11][12][13][14]. Köprüsüz DGFD konvertörlerde kullanılacak iyi bir kontrol algoritması ile GF'yi yükseltmek ve THB'yi mevcut kullanılan kontrol algoritmalarından daha fazla düşürmek mümkün olmaktadır.…”

Section: Introductionunclassified

A new controller based on PQ for single phase bridgeless buck PFC converters

Onal

2018

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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Doğrusal olmayan yükler enerji sistemlerine bağlandıklarında şebekenin güç kalitesini bozmaktadırlar. Bu yüzden enerji sistemlerinde güç faktörünün (GF) yanı sıra toplam harmonik bozulmasınında (THB) iyileştirilmesi gerekmektedir. Bu çalışmada enerji sistemlerinde GF'nin yanı sıra THB'ninde geliştirilmesinde kullanılan tek faz köprüsüz düşürücü güç faktörü düzeltme (DGFD) konvertörlerinin kontrolü için PQ güç teorisine dayalı yeni bir denetleyici önerilmektedir. Köprüsüz DGFD konvertörlerde, girişte bulunan köprü doğrultucu karmaşıklığı azaltmak ve genel verimliliği artırmak için ortadan kaldırılmaktadır. Önerilen PQ tabanlı denetleyicide referans akım sinyali anlık aktif ve reaktif güçler kullanılarak elde edilmektedir. Elde edilen referans akım sinyali PWM anahtarlama sinyallerini üretmek için akım kontrol döngüsünde kullanılmaktadır. Önerilen denetleyicinin performansı 100W'lık DGFD konvertör için PSIM programı kullanılarak doğrulanmıştır. Önerilen denetleyici tek fazlı sistemlerde GF'nin yanı sıra THB'nin geliştirilmesi açısından geçici ve kararlı durum performansına göre oldukça başarılı bulunmuştur. Anahtar kelimeler: Köprüsüz düşürücü GFD konvertörleri, toplam harmonik bozulma THB, güç faktörü GF, PQ güç teorisi, Güç kalitesi.

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A Buck Power Factor Correction Converter with Predictive Quadratic Sinusoidal Current Modulation and Line Voltage Reconstruction

Cited by 21 publications

References 19 publications

UPC strategy and implementation for buck–buck/boost PF correction converter

UPC strategy and implementation for buck–buck/boost PF correction converter

Bridgeless Single-stage Step-down Power Factor Corrector under Synchronous Switching Control Scheme

A new controller based on PQ for single phase bridgeless buck PFC converters

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