• 제목/요약/키워드: Interleaved DC-DC Converter

검색결과 143건 처리시간 0.033초

EMTP를 이용한 직류배전계통 연계용 양방향 DC/DC 컨버터 모델링 (Modeling of Bi-directional DC/DC Converter for Connecting DC Distribution System using EMTP)

  • 한준;김두웅;오윤식;권기현;노철호;정택현;김철환
    • 전기학회논문지
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    • 제63권5호
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    • pp.615-621
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    • 2014
  • With development of electrical power system, the DC distribution system has been considered as a promising technology to be used in the future smart distribution system. Among the various components comprising the DC distribution system, the bi-directional DC/DC converter is one of the most important equipment to interconnect between main power system and various renewable resources such as photovoltaic power generation, wind power generation, and electrical vehicles. In this paper, a bi-directional DC/DC converter based on three-phases interleaved method which is effective to reduce ripple of input current and output voltage is modeled using ElectroMagnetic Transient Program(EMTP), and the verification of modeled bi-directional DC/DC converter is conducted.

연료전지·이차전지 하이브리드 시스템을 위한 인터리빙 양방향 DC-DC 컨버터 설계 (The Design of Interleaved Bi-directional DC-DC Converter for Fuel Cell and Battery Hybrid System)

  • 김승민;최주엽;최익;송승호;이상철;이동하
    • 전력전자학회논문지
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    • 제18권1호
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    • pp.45-53
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    • 2013
  • Fuel cell power system is one of the most promising energy source for the alternative energy because it has unique advantages such as high energy density, no power drop during operation, and feasible to make compact size. However, due to very low response time, fuel cell is difficult to correspond to drastic load changes and start-up operation. For solving these problem, fuel cell power system must include energy storage device such as Li-Poly battery or super capacitor. Therefore, bi-directional DC-DC converter must be required for this storage device and fuel cell-PCS control. This paper presents a design and modeling of the bi-directional DC/DC converter. Firstly, we present modeling the boost and buck mode of the bi-directional converter through both PWM switch model and state space averaging technique. Secondly, in order to minimize output ripple and transient response overshoot, we have two identical DC-DC converters interleaved and adopt two-loop voltage-current controller. The proposed bi-directional DC-DC converter's modeling method and control design have been verified with computer simulation and experimentation.

스위치 전도 손실을 개선한 인터리브 DC-DC 벅-부스트 컨버터 설계 (A Design of Interleaved DC-DC Buck-boost Converter with Improved Conduction Loss of Switch)

  • 이주영;주환규;이현덕;양일석;구용서
    • 전기전자학회논문지
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    • 제14권3호
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    • pp.250-255
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    • 2010
  • 본 논문에서는 DTMOS(Dynamic Threshold voltage MOSFET) 스위칭 소자를 사용한 인터리브 방식의 전원제어 장치(PMIC)를 제안하였다. 휴대기기에 필요한 높은 출력 전압과 낮은 출력 전압을 제공하기 위하여 벅-부스트 컨버터를 사용하였다. 또한, 높은 출력 전류에서 고 전력 효율을 얻기 위하여 PWM(Pulse Width Modulation) 제어 방식을 사용하였다. 낮은 온-저항을 갖는 DTMOS를 사용하여 도통 손실을 감소시켰으며 인터리브 방식을 사용하여 출력 리플을 감소시켰다. 1mA 이하의 대기모드에서도 높은 효율을 구현하기 위하여 LDO를 설계하였다.

불연속전류모드에서 interleaved DC-DC dual boost 컨버터용 소 신호 해석 및 제어기 설계 (Small Signal Analysis and Controller Design for Interleaved DC-DC Dual Boost Converter in Discontinuous Current Mode)

  • 박주문;박상은;국정현;황영성;김영록;성세진
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2001년도 전력전자학술대회 논문집
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    • pp.530-533
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    • 2001
  • Interleaved Dual Boost(IDB) converter can reduce current ripple, switching loss and harmonics without filter in input power line. Moreover, this improve power factor. In this paper, we will use the state average methode and small signal analysis at the Interleaved dual boost converter. 4-type controllers were designed by using control transfer function. The result of these controller simulations is analyzed and proposed a proper controller at IDB

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Stacked Interleaved 방식의 50MHz 스위칭 주파수의 벅 변환기 (Stacked Interleaved Buck DC-DC Converter With 50MHz Switching Frequency)

  • 김영재;남현석;안영국;노정진
    • 대한전자공학회논문지SD
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    • 제46권6호
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    • pp.16-24
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    • 2009
  • 본 논문에서는 인덕터와 커패시터를 집적화한 DC-DC 벅 변환기를 설계하였다. 출력전압의 리플크기를 줄이기 위해 stacked interleaved 방식을 이용하였고 변환기의 제어부는 전압모드 방식의 제어방법을 사용하여 설계하였다. 설계한 DC-DC 벅 변환기는 표준 $0.5{\mu}m$ CMOS 공정으로 제작 중이며 전체면적은 $9mm^2$이다. 설계된 회로는 $3V{\sim}5V$의 입력전압에서 동작하며 LC 필터의 크기를 줄이기 위해 50MHz의 주파수로 동작하였다. 최대 250mA의 부하전류 구동이 가능하며 최대 71%의 전력변환 효율을 가졌다.

Analysis, Design and Implementation of an Interleaved Single-Stage AC/DC ZVS Converters

  • Lin, Bor-Ren;Huang, Shih-Chuan
    • Journal of Power Electronics
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    • 제12권2호
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    • pp.258-267
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    • 2012
  • An interleaved single-stage AC/DC converter with a boost converter and an asymmetrical half-bridge topology is presented to achieve power factor correction, zero voltage switching (ZVS) and load voltage regulation. Asymmetric pulse-width modulation (PWM) is adopted to achieve ZVS turn-on for all of the switches and to increase circuit efficiency. Two ZVS half-bridge converters with interleaved PWM are connected in parallel to reduce the ripple current at input and output sides, to control the output voltage at a desired value and to achieve load current sharing. A center-tapped rectifier is adopted at the secondary side of the transformers to achieve full-wave rectification. The boost converter is operated in discontinuous conduction mode (DCM) to automatically draw a sinusoidal line current from an AC source with a high power factor and a low current distortion. Finally, a 240W converter with the proposed topology has been implemented to verify the performance and feasibility of the proposed converter.

영 전압 천이를 갖는 2상 인터리브드 양방향 DC-DC 컨버터 (A Two-Phase Interleaved Bidirectional DC-DC Converter with Zero-Voltage-Transition)

  • 임창순;구남준;김민섭;현동석
    • 전력전자학회논문지
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    • 제19권5호
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    • pp.431-439
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    • 2014
  • The two-phase interleaved bidirectional DC-DC converter (TIBDC) is a very attractive solution to problems related to battery energy storage systems. However, the hard-switching TIBDC increases the switching loss and electromagnetic interference noise when the switching frequency increases. Hence, a soft-switching technique is required to overcome these disadvantages. In this study, a novel TIBDC with zero-voltage transition (TIBDC-ZVT) is proposed. Soft switching in the boost and buck main switches is achieved through a resonant cell that consists of a single resonant inductor and four auxiliary switches. Given its single resonant inductor, the proposed TIBDC-ZVT has a reduced size and can easily be implemented. The validity of the proposed TIBDC-ZVT is verified through experimental results.

철도차량 견인특성을 고려한 인터리브드 양방향 DC-DC 컨버터의 리플전류 저감에 관한 연구 (A Study on Ripple Current Reduction of Interleaved Bi-directional DC-DC Converter for Traction Characteristic of Railway Vehicle)

  • 이환;정노건;김재문
    • 전기학회논문지
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    • 제66권4호
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    • pp.733-739
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    • 2017
  • Research on fuel cell systems attracting attention as an environmentally friendly energy source has been actively conducted. And research is being conducted on railway vehicles that use direct current power generated by a fuel cell as an energy source. In this paper, a two-phase interleaved bidirectional DC-DC converter has been proposed which can supply electric energy of a battery to a traction motor during powering and charge the battery with regenerative energy during braking. Therefore, the topology of the energy storage system applied to the railway vehicle was analyzed, and the simulation was performed by constructing the power conversion system by this topology. Experiments were also conducted through hardware design and fabrication based on the simulation analysis results, and the validity of the hardware implementation was verified.

배터리 충방전 시스템을 위한 양방향 커플드 인덕터 인터리브드 DC-DC 컨버터 특성 연구 (A Study on Bidirectional Coupled-Inductor Interleaved DC-DC Converter for Battery Charging and Discharging System)

  • 서정민;이우철
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2019년도 전력전자학술대회
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    • pp.133-135
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    • 2019
  • 최근 신재생 에너지를 이용한 발전 방법에 관한 활발한 연구가 진행되고 있다. 이로 인해 배터리 충, 방전 분야에서 양방향 DC-DC 컨버터의 수요가 증가 되고 있다. 본 논문에서는 배터리 충, 방전용 양방향 DC-DC 컨버터에 관한 연구로 Interleaved 기법을 적용하여 충전 시 배터리 전압 리플 감소 및 Coupled 인덕터를 적용해 인덕터 전류 리플 감소를 하고 배터리에서 방전 시 출력 전력 증가 및 출력 리플을 감소시키는 연구를 진행하였다. 제안된 컨버터의 특성 및 성능은 시뮬레이션을 통하여 타당성을 검증하였다.

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단일단 역률개선 회로를 이용한 인터리빙 (interleaving) 방식 AC/DC 컨버터 (An interleaved single-stage power-factor-correction AC/DC converter)

  • 김응호;권봉환
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2004년도 전력전자학술대회 논문집(2)
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    • pp.547-550
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    • 2004
  • An interleaved single-stage power-factor-correction (PFC) AC/DC converter is presented in this paper. The proposed converter is combined by two single-stage AC/DC converters based on flyback converter Each PFC stage operates in discontinuous conduction mode (DCM). By exploiting the interleaving technique, the input ripple current and output ripple voltage are reduced. The proposed converter complied with EN/1EC61000-3-2 harmonic regulations achieves high efficiency and low cost. The performance of the proposed converter was evaluated on a 180W $(90W\times2,\;24V,\;7.5A)$ experimental prototype.

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