Optimal design method for interleaved single-phase PFC converter with coupled inductor

Imaoka, Jun; Ishikura, Yuki; Kawashima, Takahiro; Yamamoto, Masaaki

doi:10.1109/ecce.2011.6064004

Cited by 27 publications

(8 citation statements)

References 4 publications

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“…Actually created conventional coupled inductor is shown in TABLE I. the coupled inductor was designed number of winding turns and length of air gap by using magnetic circuit model [6] [10]. However, there is only one problem in the design process of the coupled inductor; an actual measurement value of length of air gap (26.6mm) is irreconcilable with the theory value (1.75mm).…”

Section: Bmentioning

confidence: 99%

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A novel integrated magnetic structure suitable for transformer-linked interleaved boost chopper circuit

Imaoka

Yamamoto

2012

2012 IEEE Energy Conversion Congress and Exposition (ECCE)

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A novel integrated magnetic structure suitable for the transformer-linked interleaved boost chopper circuit is proposed in this paper. The coupled inductor is known to be effective for miniaturization in high coupling area because the DC flux in the core can be canceled and the inductor current ripple become to high frequency. However, coupled inductor with E-E core and E-I core are realistically difficult to obtain necessary leakage inductance in high coupling area. The cause is fringing effect and the effects leads to complication of magnetic design. To solve this problem, novel integrated magnetic structure with reduction of fringing flux and high frequency ripple current performance, is proposed. Furthermore, the design method for novel integrated magnetic structure suitable for coupled inductor is proposed from analyzing of the magnetic circuit model. Finally, effectiveness of reduction of fringing flux and design method for novel coupled inductor are discussed from experimental point of view.

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Section: Bmentioning

confidence: 99%

“…To overcome this disadvantage of ferrite, the coupled inductor is important to design in high coupling area in order to cancel DC flux in the magnetic core, and inductor current ripple become to high frequency [5][6] [10].…”

Section: Introductionmentioning

confidence: 99%

A novel integrated magnetic structure suitable for transformer-linked interleaved boost chopper circuit

Imaoka

Yamamoto

2012

2012 IEEE Energy Conversion Congress and Exposition (ECCE)

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“…Additionally, this converter is made with two power switches, S 1 and S 2 , which are alternatively commuted with a phase shift of 180 degrees, two diodes D 1 and D 2 , and one output capacitor C o . The full operating principle is presented in Imaoka et al (2011). This converter offers the advantage of input current splitting, which allows the use of components with smaller rated power and windings with a smaller sectional area.…”

Section: Converter's Operationmentioning

confidence: 99%

“…Finally, this converter operates at twice the frequency due to the interleaved technique and the phase shift between the switches. Therefore, a downsizing of the output capacitor is obtained (Imaoka et al, 2011).…”

Section: Converter's Operationmentioning

confidence: 99%

Design of a 200kW electric powertrain for a high performance electric vehicle

et al. 2016

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With the purpose of designing the electric powertrain of a high performance electric vehicle capable of running a quarter mile in 10 seconds, firstly it is necessary to calculate the required energy, torque, and power in order to size and select the suitable storage components and electric motors. Secondly, an assessment of the powertrain arrangement is needed to choose the best internal configuration of the vehicle and guarantee the highest efficiency possible. Finally, a design of the power conversion stages, specifically the DC-DC converter that interfaces the storage unit with the electric motors, is required as well. This paper shows the energy calculation procedure based on a longitudinal dynamic model of the vehicle and the selection method of the storage components and motors needed for this application, as well as the design of two 100 kW interleaved boost converters with coupled inductors. In addition, a novel operation of the interleaved boost converter is proposed in order to increase the efficiency of the converter. As a result, the designed converter achieved a power density of 24,2 kW/kg with an efficiency of 98 %, which was validated by experimental tests of a low power prototype.Keywords: Electric vehicle, ultracapacitors, interleaved dc-dc converter, coupled inductor, efficiency, power density. RESUMENPara diseñar el tren de potencia de un vehículo eléctrico de alto desempeño capaz de correr un cuarto de milla en 10 segundos, primero es necesario calcular la potencia y energía necesarias para dimensionar y seleccionar los componentes de almacenamiento y los motores adecuados. Segundo, se requiere una evaluación de varios trenes de potencia para seleccionar la mejor configuración interna del vehículo con el propósito de garantizar la mayor eficiencia posible. Finalmente, se necesita un diseño del convertidor de potencia DC-DC que haga la interfaz entre la unidad de almacenamiento y los motores eléctricos con sus respectivos inversores. Este artículo presenta el procedimiento para el cálculo de la energía necesaria para correr el vehículo con base en un modelo dinámico longitudinal. Así mismo, se presenta el método de selección de los componentes de almacenamiento de energía necesarios. Finalmente, se presenta el diseño de dos convertidores intercalados con inductores acoplados de 100 kW operando bajo una novedosa operación propuesta para incrementar la eficiencia del convertidor. Como resultado, el convertidor diseñado logró una densidad de potencia de 24,2 kW/kg y una eficiencia de 98 %, la cual es validada con pruebas experimentales de un prototipo de baja potencia.Palabras clave: Vehículo eléctrico, supercondensadores, convertidor dc-dc intercalado, inductor acoplado, eficiencia, densidad de potencia.

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“…On the other hand, because the peak value of the diode current I dp and relational equation of the average inductor current I L , and I Lpp is expressed as the equation 5, the output current I o is described as equation (6) from (4) and (5).…”

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confidence: 99%

Analysis of Output Capacitor Voltage Ripple in Multi-Phase Transformer-Linked Boost Chopper Circuit

et al. 2013

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The multi-phase method is effective in downsizing the power converter system. Because of the multi-phase boost chopper circuit, the output capacitor and the cooling system can be downsized in the case of the boost chopper circuit. Furthermore, the volume of the inductor can be reduced using the transformer-linked method. However, there is little comparative data available on the output capacitor in the boost chopper of the conventional multi-phase method and the transformer-linked method. The purpose of my work was to examine the characteristics of the output capacitor in both the multi-phase method and the transformer-linked method. To evaluate the performance of the downsized capacitor, a voltage ripple analysis has been successfully employed as the index of the volume of the output capacitor. From the experimental results, it was found that there is little difference between the multi-phase method and the transformer-linked method in regard to the voltage ripple of the output capacitor. The experimental results indicate that the performance of the downsized capacitor is the same for the multi-phase method and the transformer-linked method.

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Optimal design method for interleaved single-phase PFC converter with coupled inductor

Cited by 27 publications

References 4 publications

A novel integrated magnetic structure suitable for transformer-linked interleaved boost chopper circuit

A novel integrated magnetic structure suitable for transformer-linked interleaved boost chopper circuit

Design of a 200kW electric powertrain for a high performance electric vehicle

Analysis of Output Capacitor Voltage Ripple in Multi-Phase Transformer-Linked Boost Chopper Circuit

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