• 제목/요약/키워드: Partial resonant

검색결과 105건 처리시간 0.025초

부분공진형 승.강압 초퍼의 새로운 토포로지 (New topology of Partial Resonant Type Buck-Boost Chopper)

  • 고강훈;라병훈;권순걸;구헌회;이현우
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 1998년도 전력전자학술대회 논문집
    • /
    • pp.39-42
    • /
    • 1998
  • This paper is presented the Partial Resonant Soft Switching Mode Power Converter which is adapted the power converter having the partial resonant soft switching mode, that makes switches operated when the resonant current or voltage becomes zero by making the resonant circuit partially at turning on and off of the switches with suitable layout of the resonant elements and switch elements in the converter. Also, this paper includes the analysis and simulation of the Partial Resonant type Buck-Boost Chopper.

  • PDF

부분공진기법에 의한 고효율 인버터 시스템 (High Efficiency Inverter System by Partial Resonant Method)

  • 김영철;이현우
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 1998년도 연구회 합동 학술발표회 논문집
    • /
    • pp.39-43
    • /
    • 1998
  • A large number of soft switching topologies included a resonant circuit have been proposed. But these circuits increase number of switch in circuit and complicate sequence of switching operation. In this paper, the authors propose power conversion system, DC-AC inverter of high efficiency and high power factor with soft switching mode by partial resonant method. The switching devices in a proposed circuits are operated with soft switching by the partial resonant method, that is, PRS2MPC (Partial Resonant Soft Switching Mode Power Converter). The result is that the switching loss is very low and the efficiency of system is high. And the snubber condenser used in partial resonant circuit makes charging energy regenerated at input power source for resonant operation.

  • PDF

보조부분 공진 회로를 이용한 삼상 PWM 인버터의 고조파 제거 (Elimination of harmonics in three-Phase PWM inverter using auxiliary partial resonant circuit)

  • 서기영;이현우;김영문;문상필
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 1998년도 추계학술대회 논문집 학회본부A
    • /
    • pp.137-140
    • /
    • 1998
  • A new SPWM inverter using three-phase boost converter by auxiliary partial resonant with high power factor and high efficiency is proposed. The proposed boost converter is constructed by using a resonant network in parallel with the switch of the conventional boost converter. The devices are switched at zero voltage or zero current eliminating the switching loss. A new Partial resonant boost converter achieves zero-voltage switching (ZVS) or zero-current switching (ZCS) for all switch devices without increasing their voltage and current stresses. This paper introduces elimination of low-order harmonics compared with conventional SPWM inverter and SPWM inverter using three-phase boost converter by auxiliary Partial resonant.

  • PDF

Analysis of partial resonant AC-DC converter for high power and power factor

  • Mun, Sang-Pil;Kim, Si-Lyur;Lee, ki-Youn;Hyun-Woo;Katsunori taniguchi, Katsunori-Taniguchi
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 1998년도 Proceedings ICPE 98 1998 International Conference on Power Electronics
    • /
    • pp.920-927
    • /
    • 1998
  • This paper proposed that an Analysis of a partial resonant AC-DC converter for high power and power factor operates with four choppers connecting to a number of parallel circuit. To improve these, a large number of soft switching topologies included a resonant circuit have been proposed. And, some simulative results on computer are included to confirm the validity of the analytical results. The partial resonant circuit makes use of an inductor using step-down and a condenser of lose-less snubber. The result is that the switching loss is very low and the efficiency of system is high. And the snubber condenser used in a partial resonant circuit makes charging energy regenerated at input power source for resonant operation. The proposed conversion system is deemed the most suitable for high power applications where the power switching devices are used

  • PDF

보조 부분 공진 회로를 이용한 고역률 고효율 삼상 부스트 컨버터 (A High Power Factor and High Efficiency Three Phase Boost Converter using auxiliary Partial Resonant circuit)

  • 서기영;권순걸;이현우;김영문
    • 대한전기학회논문지:전기기기및에너지변환시스템부문B
    • /
    • 제48권4호
    • /
    • pp.212-218
    • /
    • 1999
  • A new partial resonant three phase boost converter with high power factor and high efficiency is proposed. The proposed boost converter is constructed by using a resonant network in parallel with the swithch of the conventional boost converter. The devices are switched at zero voltage or zero current eliminating the switching loss. A new auxiliary partial resonant boost converter achieves zero-voltage switching(ZVS) or zero-current switching(ZCS) for all switch devices without increasing their voltage and current stresses.

  • PDF

새로운 소프트 스위칭형 벅-부스터 컨버터의 효율개선 (Efficiency Improvement of New Soft Switching Type Buck-Boost Chopper)

  • 고강훈;곽동걸;서기영;권순걸;이현우
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 1998년도 연구회 합동 학술발표회 논문집
    • /
    • pp.44-48
    • /
    • 1998
  • In the buck-boost DC-DC converter which is used at a certain situation such as in factories where loads often change a lot, the switches in the device make big energy loss in operating at Buck-Boost Mode due to hard switching and are affected by lots of stresses which decrease the efficiency rate of the converter. In order to improve this problem, to decrease the loss of snubber and switching, it has been investigated that zero voltage switching mode and zero current switching mode which make the operation of switches with soft switching. For the more sophisticated and advanced device, this paper is presented the Partial Resonant Soft Switching Mode Power Converter which is adapted the power converter having the partial resonant soft switching mode, that makes switches operate when the resonant current or voltage becomes zero by making the resonant circuit partially at turning on and off of the switches with suitable layout of the resonant elements and switch elements in the converter. Also, this paper includes the analysis and simulation of the Partial Resonant type Buck-Boost Chopper.

  • PDF

단상 컨버터의 부분공진 회로 (Single-Phase converter with partial resonant circuit)

  • 이현우;곽동걸
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 1993년도 정기총회 및 추계학술대회 논문집 학회본부
    • /
    • pp.129-131
    • /
    • 1993
  • Power conversion system of high performance requires high switching frequency power converter. In order to minimize commutation stress and switching losses, in this paper, AC-DC converter is embedded a partial resonant DC-Link circuit with the object of ZVCS(zero voltage switching and zero current switching). The partial resonant occurs just before converter switch operates. Thus, VA ratings of the elements and their dissipations due to effective series resistance (ESR) are very low. Some simulative results on computer are included to confirm the validity of the analytical results.

  • PDF

유도 가열용에 사용되어지는 새로운 부분공진형 영전압 스위칭 PWM 고주파 인버터 (New Partial Resonant Zero Voltage Switching PWM High Frequency Inverter using Induction Heating)

  • 정영수;문상필;박한석
    • 전기학회논문지P
    • /
    • 제64권4호
    • /
    • pp.261-266
    • /
    • 2015
  • This paper presents a newly proposed prototype of voltage-fed half-bridge partial resonant zero voltage switching PWM inverter operating at a constant frequency variable power regulation scheme, which is more suitable and acceptable for induction heated(IH) cooking appliances. This application-specific high frequency inverter circuit topology using a new generation specially-designed IGBTs can operate under a principle of a fixed frequency ZVS-PWM strategy. The operating principle of a new partial resonant inverter circuit is described on the basis of its computer-aided simulation analysis, its including steady-state operating characteristics.

새로운 무손실 스너버를 이용한 부분공진형 고효율 $3\phi$ AC-DC 부스터 컨버터 (A New Partial Resonant Switching $3\phi$ Boost Converter with High Efficiency Using Lossless Snubber)

  • 전종함;서기영;이현우
    • 전자공학회논문지S
    • /
    • 제34S권9호
    • /
    • pp.118-125
    • /
    • 1997
  • This paper proposed a new partial resonant 3.PHI. AC-DC boost converter of high efficiency using lossless snubber. The proposed converter, DCM (Discontinuous Current Mode) has a merit of simple controlled circuit because the input current control discontinuously. But turned off switching loss and stress of the switching device increase when the switch turned off at the peak of current. Therefore, the paper improves efficiency by adopting the PRS$^{2}$(Partial Resonant Soft Switching) in 3.PHI. AC-DC boost converter and makes the unity power factor. The PRS$^{2}$ is reduced a current/voltage stresses of switching devices. Also, a DCMPRS$^{2}$M(Discontinuous Conduction Mode Partial Resonant Soft Switching Method) appear the current and voltage equation of this circuit. The paepr examine in a 3.PHI. AC-DC boost converter and show the result of that.

  • PDF

Multiple Buck-Chopper using Partial Resonant Switching

  • Mun Sang-Pil;Suh Ki-Young;Lee Hyun-Woo;Chun Jung-Ham
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 2001년도 Proceedings ICPE 01 2001 International Conference on Power Electronics
    • /
    • pp.189-192
    • /
    • 2001
  • This paper proposed that an AC-DC converter system using multiple buck-chopper operates with four choppers connecting to a number of parallel circuits. To improve these, a large number of soft switching topologies included a resonant circuit have been proposed. And, some simulative results on computer are included to confirm the validity of the analytical results. The partial resonant circuit makes use of an inductor using step-down and a condenser of loss-less snubber. The result is that the switching loss is very low and the efficiency of system is high. And the snubber condenser used in a partial resonant circuit makes charging energy regenerated at input power source for resonant operation. The proposed conversion system is deemed the most suitable for high power applications where the power switching devices are used.

  • PDF