New Method for Reducing Harmonics Involved in Input and Output of Rectifier with Interphase Transformer

Miyairi, Shota; Iida, Shoji; Nakata, Kiyoshi; Masukawa, Shigeo

doi:10.1109/tia.1986.4504795

Cited by 129 publications

(19 citation statements)

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“…This rectifier has three taps with a thyristor in each, and performs 36-pulse operation. Miyairi demonstrated a maximum of 60-pulse operation in his experiments using an IT with 5 of diode-tap on it (43) . In the rectifiers, the operating pulse-number is increased from 12 to 24 in diode rectifiers and to 36 or more in thyristors rectifiers.…”

Section: Omitting Isolation Transformer ("A1∼3/b/c1" Inmentioning

confidence: 99%

Passive and Hybrid PFC Rectifiers-A Survey and Exploration of New Possibilities-

Nishida

2006

IEEJ Trans. IA

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The diode rectifier offers several desirable features such as a unity displacement-factor and a high efficiency with low complexity and high reliability, but the utility line-current distorts greatly. The traditional multi-pulse (e.g., 12-pulse, 18-pulse and so on) PAM (Traditional MP-PAM) concept by means of multiple rectifier units and phase-shifting isolation-transformers is a well-known scheme to improve the input line-current waveform and reduce ripples of the dccurrent/voltage. Though, the necessity of the isolation-transformer is a great weak point especially in application in low to medium power range. To mitigate the problem, several trials have been done so far. The PWM rectifier is a modern and effective alternative. Though, it results in a higher initial cost, lower efficiency and EMI noise problem due to high frequency switching To solve the problem, we have two alternatives; one is so called "Passive" schemes and the other is so called "Hybrid" scheme.The Passive scheme can be classified into "Simplified MP-PAM" and "Third-Harmonic-Current Injection" (THC-Inj) scheme. These two schemes have been studied so far, and several expanded versions have been developed. Additionally, some attractive schemes obtained by combining the Simplified MP-PAM and THCInj schemes have recently been developed too. Further, combined schemes with the Passive and Active (PWM DC-DC converter) have been studied very recently.The studies of the Passive and Hybrid topologies have been activated in these years since those are attractive in new applications with higher fundamental frequency such as More-ElectricalAircraft. Thus, the current trends and future possibilities have been To do so, a survey and historical review is given fist in Chapter-2 by referring to Fig. 1. In the survey/review, features of the topologies and technical relations between/among the topologies have been inspected to prepare for the evaluation of the new Hybrid topologies and the exploration of the future possibilities in the category.Then, in Chapter-3, some newly proposed attractive topologies, such as one in Fig. 2, have been investigated by referring to operating waveforms obtained from experiments and simulations. There, it is shown that the new topologies obtain high performance as same as the PWM rectifiers. It is also pointed out that unexplored fine topologies still remain. MemberThe diode rectifier offers several desirable features such as a unity displacement-factor and a high efficiency with low complexity and high reliability, but the utility line-current is significantly distorted. The traditional multi-pulse (e.g., 12-pulse, 18-pulse and so on) PAM concept by means of multiple rectifier units and phase-shifting isolationtransformers is a well-known scheme to improve the input line-current waveform and reduce dc-current/voltage ripple. Though, the necessity of the isolation-transformer is a great weak point especially for applications in low to medium power range. To mitigate the problem, several investigations have been done. The PWM ...

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Section: Omitting Isolation Transformer ("A1∼3/b/c1" Inmentioning

confidence: 99%

Passive and Hybrid PFC Rectifiers-A Survey and Exploration of New Possibilities-

Nishida

2006

IEEJ Trans. IA

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“…no fue práctico [1][2]. Más tarde, varios autores solucionaron este problema mediante el uso de circuitos auxiliares con tiristores en el lado de C.C., los cuales fueron aplicados a diferentes configuraciones de rectificadores [3][4][5][6]. Los tiristores auxiliares, sin embargo, abrían a destiempo con corrientes altas de carga, lo cual afectaba la forma de onda de la corriente en el lado de C.C., lo que a su vez afectaba la calidad de las corrientes en el lado de C.A.…”

Section: Introductionunclassified

Rectificadores Ca/Cc Tiristorizados Con Formas De Onda De Alta Calidad

Villablanca

Cádiz

Tapia

2010

Ingeniare. Rev. chil. ing.

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RESUMENEn este artículo un método y un aparato son aplicados a distintas configuraciones de rectificadores ca/cc tiristorizados para reducir la distorsión de las corrientes en el lado de C.A. La carga puede ser inductiva o capacitiva. La tecnología consiste en darle una adecuada forma de onda a la corriente en el lado de C.C. a través de dos interruptores de conmutación forzada. Esta forma de onda lograda en la corriente en el lado de C.C. se refleja en la forma de onda de las corrientes en el lado de C.A., las cuales se transforman en perfectas ondas senoidales. El circuito de control es simple y es también capaz de manejar variaciones rápidas de corriente de carga y fallas en los interruptores de conmutación forzada. La conducción simultánea de los tiristores del puente rectificador es eliminada completamente. La validación experimental de la tecnología es mostrada a través de un prototipo de laboratorio de 400 V, 50 Hz y 30 KVA.Palabras clave: Rectificadores CA/CC, tiristores, armónicos. ABSTRACT In this paper both a method and apparatus are applied to different configurations of thyristor-based ac/dc rectifiers to

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“…Later, several authors solved this problem by using thyristor-based auxiliary circuits on the DC side, which were applied to different configurations of AC/DC rectifiers [3][4][5][6]. The auxiliary thyristors, however, did not open timely at high-level load current, which was detrimental to both the DC-current shaping and the quality of the AC input currents.…”

Section: Introductionmentioning

confidence: 99%

Harmonic‐free AC/DC rectifiers for HVDC systems

Villablanca

Rojas

2009

Int Trans Elec Energy Syst

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SUMMARYThis paper presents an innovative method for reducing current distortion on the AC side of 12-pulse series-connected line-commutated AC/DC rectifiers. Furthermore, the overlap conduction of thyristors is completely eliminated. The methodology involves an accurate shaping of the DC current by using two self-commutated switches. This DC-current shaping is reflected back into the shaping of the AC input currents, which become pure sine waves. Rectifying operation is possible with a simple control circuit, which is able to deal with both rapid load variations and failures in the self-commutated switches. HVDC application of this innovative method is briefly examined, together with experimental results showing both the steady state and transient behavior of the technology by using a 380-V 20-kVA 50-Hz laboratory prototype.

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New Method for Reducing Harmonics Involved in Input and Output of Rectifier with Interphase Transformer

Cited by 129 publications

References 1 publication

Passive and Hybrid PFC Rectifiers-A Survey and Exploration of New Possibilities-

Passive and Hybrid PFC Rectifiers-A Survey and Exploration of New Possibilities-

Rectificadores Ca/Cc Tiristorizados Con Formas De Onda De Alta Calidad

Harmonic‐free AC/DC rectifiers for HVDC systems

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