S. Moisseev

Yamaguchi University, Yamaguti, Yamaguchi, Japan

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Publications (30)6.37 Total impact

  • S. Sato, S. Moisseev, M. Nakaoka
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    ABSTRACT: A new reversed-output current-assisted full-bridge ZVS phase-shift PWM DC-DC power converter with a high-frequency transformer has been developed and its characteristics are discussed. Power MOSFETs operating as synchronous rectifier switching devices in the transformer secondary side are implemented in the rectifier stage to reduce conduction power losses and also to extend the ZVS commutation area of the transformer primary side power MOSFETs from the rated load to no load by using reversed output current. The steady-state operation of the proposed phase-shift PWM controlled DC-DC power converter is described in comparison with the conventional ZVS phase-shift PWM DC-DC power converter using diode rectifiers. The practical effectiveness of the proposed ZVS phase-shift PWM DC-DC power converter is proved by using 2.5 kW-32kHz circuit prototype. A 97% efficiency of the proposed isolated DC-DC power converter is achieved.
    IEE Proceedings - Electric Power Applications 04/2005; · 0.55 Impact Factor
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    S. Moisseev, K. Soshin, M. Nakaoka
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    ABSTRACT: A novel high-frequency transformer linked full-bridge type soft-switching phase-shift pulsewidth modulated (PWM) controlled dc-dc power converter is presented, which can be used as a power conditioner for small-scale photovoltaic and fuel cell power generation systems as well as isolated boost dc-dc power converter for automotive ac power supply. In these applications with low-voltage large-current sources, the full-bridge circuit is the most attractive topology due to the possibility of using low-voltage high-performance metal-oxide-semiconductor field-effect transistor (MOSFET) and achieving high efficiency of the dc-dc power converter. A tapped-inductor filter including the freewheeling diode is newly implemented in the output stage of the full-bridge phase-shift PWM dc-dc converter to achieve soft-switching operation for the wide load variation range. Moreover, in the proposed converter circuit, the circulating current is effectively minimized without using additional resonant circuit and auxiliary power switching devices. The practical effectiveness of the proposed soft-switching dc-dc power converter was verified in laboratory level experiment with 1 kW 100 kHz breadboard setup using power MOSFETs. Actual efficiency of 94-97% was obtained for the wide duty cycle and load variation ranges.
    IEEE Transactions on Aerospace and Electronic Systems 02/2005; · 1.30 Impact Factor
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    ABSTRACT: This paper presents a novel voltage source full-bridge type soft-switching phase-shift PWM controlled DC-DC power converter with a high frequency transformer link, which can operate under ZVS transition of leading bridge leg and ZCS transition of lagging bridge leg. This power converter can be used as power conditioner for small-scale solar photovoltaic cell and fuel cell power generation systems and isolated step-up DC-DC power converter for automotive AC power supply. The full-bridge circuit topology with a high frequency step-up transformer makes possible to apply low voltage high performance MOSFETs in order to achieve high efficiency processing of the DC-DC power conversion. The tapped inductor filter including a freewheeling diode is implemented in the output stage of the proposed soft-switching DC-DC power converter to perform soft-switching phase-shift PWM high frequency operation for wide load variation ranges. Moreover, in the proposed DC-DC power converter circuit, the circulating currents are effectively minimized without adding active auxiliary quasi-resonant snubber circuit with power switching devices. The practical effectiveness of the proposed soft-switching DC-DC power converter is verified on the basis of experimental setup.
    Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual; 07/2004
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    ABSTRACT: This paper presents a novel circuit topology of the voltage source type zero voltage soft-switching (ZVS) full bridge DC-DC power converter with an isolated high-frequency transformer, which incorporates zero-current soft-switching (ZCS) phase-shifted (PS)-PWM active power switches in series with diodes of two bridge arms of a full-bridge rectifier on the high-frequency transformer secondary side. This high-frequency linked DC-DC power converter can achieve ZVS for noncontrolled active power switches on the primary side of the transformer and ZCS for PS-PWM active switches on the secondary side of the transformer under wide load variations as well as a wide PS-PWM regulation range. The switching power losses and conduction power losses of the active devices of the proposed DC-DC converter can be considerably reduced. The proposed DC-DC converter blocks circulating current flowing through the semiconductor switching devices on the transformer primary side as compared to the lossless snubbing capacitor and transformer leakage and magnetising inductor-assisted soft-switching full-bridge DC-DC converter with ZVS PS-PWM scheme on the transformer primary side. The steady-state operating principles of the proposed DC-DC converter are evaluated and discussed, based on the simulation and experimental results obtained from a 2 kW-40 kHz breadboard set-up using IGBTs.
    IEE Proceedings - Electric Power Applications 06/2004; · 0.55 Impact Factor
  • Serguei Moisseev, Satoshi Hamada, Mutsuo Nakaoka
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    ABSTRACT: In this paper, a novel full-bridge soft-switching phase-shifted PWM DC-DC power converter circuit is presented. A tapped inductor filter is implemented in the proposed converter topology to achieve soft switching commutation for the active power switches under wide load variation range, to minimize circulating current without using additional resonant circuit and/or auxiliary switching devices. The effectiveness of the proposed soft-switching DC-DC power converter is verified in experiment with 2kW-100kHz breadboard circuit using IGBTs.
    IEEJ Transactions on Industry Applications 01/2004; 123(9):1083-1084.
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    ABSTRACT: Advanced development of the high frequency pulse modulated DC/DC power converters are indispensable in order to achieve smaller size, higher performances of the power supplies. In resent years the problems of the electromagnetic noise generation caused by the hard-switching pulse width modulation (PWM)—based high frequency operation of the switching power devices have been significant, including switching losses and switching surges. As result a variety of soft-switching power conversion circuit technologies have been attracted special interests for reducing switching power losses and minimizing electromagnetic interference. The soft-switching pulse modulation of DC/DC power circuit topologies can be divided into continuous current mode resonant type and quasi-resonant voltage mode type. The soft-switching DC/DC converters, a continuous current mode zero current soft-switching (ZCS) DC/DC converter with pulse frequency modulation (PFM) has been already put into a practical use. In this sort of power converters soft-switching commutation can be achieved over wide load variation ranges and high stability can be also performed, but high current peak stress through power semiconductor devices arises, however, and it causes relatively large increase of conduction power losses in the power semiconductor devices, high frequency transformers as well as rectifier diodes. As a result, the problem of a high efficiency for DC/DC power converter could not still unsolved. Thereupon, in this paper, quasi-resonant voltage mode based soft-switching PWM DC/DC power converter with a high frequency transformer link is presented, which has on/off assisted synchronous rectifier in its secondary side. The PWM operation of this converter is described in comparison with conventional one. Due to using power MOSFET as on/off assisted synchronous rectifier in the secondary side of the high frequency isolated transformer, it is possible to achieve stable zero voltage soft-switching (ZVS) conditions from no load to the rated load for minimum requirement of a magnetizing current. As result of a high value of the magnetizing inductance design, the power converter actual efficiency of this converter can be designed so as to above 97% in experiment. Moreover, results of a switching losses analysis are discussed from an experimental point of views in this paper. The effectiveness of the power converter treated hare is proved from a practical point of view by using 32kHz-2.5kW breadboard setup.
    IEEJ Transactions on Industry Applications 01/2004; 123:1414-1421.
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    ABSTRACT: A novel prototype of a double two-switch forward transformer linked zero-voltage and zero-current mode soft-switching (ZVZCS) pulse width modulation (PWM) DC-DC power converter using IGBTs for high power applications is presented. Based on a conventional two-switch forward transformer linked PWM DC-DC converter topology, this converter circuit configuration doesn't include any complex auxiliary resonant circuit. Combining two identical two-switch forward type DC-DC power conversion circuits with a tapped-inductor type DC smoothing filter into a power DC-DC conversion system makes it possible to achieve soft-switching conditions for the active power switches with aid of lossless snubber capacitors and transformer parasitic inductors. Lowered peak voltage across the power switching devices and their related peak current stresses, no transformer saturation effect, reducing of idle and circulating currents through circuit components are practically attained for this converter. This soft-switching PWM DC-DC power converter has some unique advantages such as better power conversion efficiency, lowered output DC ripple current, high power density, constant frequency PWM control scheme, cost effective and wide soft-switching operation range under load variations and PWM regulation settings for high power utilizations. The basic operating principle of the new soft switching power converter treated here is illustrated with approximate periodic steady-state circuit analysis for each mode equivalent circuit. The practical effectiveness of the proposed soft-switching DC-DC power converter is confirmed by the simulation results and is experimentally evaluated on basis of 500W-100kHz breadboard setup using the fast switching IGBTs.
    IEEJ Transactions on Industry Applications 01/2004; 123:121-130.
  • T. Ahmed, S. Moisseev, E. Hiraki, M. Nakaoka
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    ABSTRACT: In this paper, the steady-state operating performance analysis and the minimum capacitance design of the excitation capacitor bank required for the three-phase self-excited induction generator (SEIG) driven by a variable-speed prime mover (VSPM) is presented on the basis of effective algorithms. The steady-state operating performances and the minimum excitation capacitance design required for the VSPM coupled the three-phase SEIG in unregulated voltage control loop scheme are evaluated on line processing under the conditions of particular torque-speed characteristics of the VSPM which are similar to the torque-speed characteristics of the wind turbine prime mover and the electrical passive load power variations with the simple and efficient computation processing procedures. The three-phase SEIG driven by VSPM prototype setup is implemented for the small-scale clean renewable and alternative energy utilizations. The experimental operating performance results are illustrated and give good agreements with the simulation ones.
    Power Electronics and Drive Systems, 2003. PEDS 2003. The Fifth International Conference on; 12/2003
  • S. Moisseev, K. Suzuoka, T. Ahmed, M. Nakaoka
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    ABSTRACT: This paper presents a novel high frequency transformer linked full-bridge type soft-switching phase-shift PWM control DC-DC power converter, which can be used as DC power conditioner for small-scale fuel cell power generation system as well as isolated step-up DC-DC power converter for automotive AC power supply. Using full-bridge soft-switching PWM DC-DC converter topology makes possible to use low voltage high performance MOSFETs to achieve high efficiency of the DC power conditioner. The tapped inductor filter is implemented in the proposed soft-switching converter circuit topology to achieve soft-switching PWM constant high frequency operation for the wide load variation range, to minimize circulating and idling currents without using additional resonant circuit and auxiliary power switching devices. The practical effectiveness of the proposed soft-switching DC-DC power converter is verified in the laboratory level experiment with 1 kW 100 kHz breadboard setup using power MOSFETs. Actual efficiency 94-96% of the proposed DC-DC converter is obtained for the wide load range.
    Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE; 12/2003
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    ABSTRACT: This paper presents a novel circuit topology of a voltage source type zero voltage soft-switching full bridge inverter DC-DC power converter with an isolated high-frequency transformer link this power converter incorporates zero-current soft-switching (ZCS) mode phase-shifted PWM active power switches in series with diode into two diode arms of full-bridge rectifier or center-tapped rectifier in transformer secondary-side. This isolated DC-DC power converter circuit can achieve ZVS/ZVT transition commutation for non-controlled active power switches in the primary side of transformer and ZCS/ZCT transition commutation for phase-shifted PWM active power switches in the secondary side of transformer, which can operate under wide load variations from a light load to a heavy load as well as a condition of PWM voltage regulation strategy.
    Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE; 12/2003
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    ABSTRACT: This paper presents a novel prototype of voltage source soft-switching PWM high frequency inverter with minimum circuit components, which can achieve wider soft commutation, simpler circuit configuration, smaller physical size, lower cost and wider power regulation range, higher-efficiency as compared with active voltage clamped edge resonant ZVS-PWM high frequency inverters developed previously. The operation principle of soft switching PWM high frequency inverter treated here is described on the basis of the simulation and experimental results, together with its comparative operating performances in steady state. The performances of this quasi-resonant soft-switching PWM high frequency inverter operating under principles of ZVS and ZCS arms-related soft commutation is comparatively evaluated and discussed including the voltage-clamped ZVS-PWM inverter and a single-ended ZVS-PFM inverter. The practical effectiveness of a novel type soft-switching PWM high frequency inverter using-state-of-the-art IGBT power modules is actually proved for consumer induction heated appliances such as cooker, hot water producer and super heated steamer.
    Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE; 12/2003
  • S. Sato, S. Moisseev, M. Nakaoka
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    ABSTRACT: In this paper, a full bridge edge-resonant zero voltage mode based soft-switching PWM DC-DC power converter with a high frequency transformer link is presented. Active power MOSFETs operating as synchronous rectifier are implemented in the rectifier stage to reduce conduction losses and also to extend ZVS commutation area of the primary side power MOSFETs from rated to zero load without requirement of a magnetizing current. The operation of this phase-shift PWM controlled converter is described in comparison with conventional ZVS phase-shifted PWM DC-DC power converter with diodes rectifier. Moreover, the experimental results of the switching power losses analysis are discussed in this paper. The practical effectiveness of the power DC-DC power converter treated here is proved from a practical point of view by using 2.5 kW, 32 kHz breadboard circuit. An actual efficiency 97% of this converter is measured in the experiment.
    Telecommunications Energy Conference, 2003. INTELEC '03. The 25th International; 11/2003
  • S. Moisseev, S. Hamada, M. Nakaoka
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    ABSTRACT: In this paper a novel high frequency step-up transformer linked full-bridge soft-switching phase-shift control scheme DC- DC power converter with ZVS and ZCS bridge legs is proposed. A tapped inductor filter is used in the presented soft-switching converter to achieve wide load variation range soft-switching PWM operation under constant frequency, to minimize circulating and idling currents. The principle of operation with steady-state circuit analysis for each operation mode is illustrated in the fullpaper. The practical effectiveness of the proposed soft-switching DC-DC power converter is verified by the experiment with 1 kW 100 kHz breadboard using power MOSFETs. The actual efficiency of 94-96% was obtained for the wide load variation range.
    Telecommunications Energy Conference, 2003. INTELEC '03. The 25th International; 11/2003
  • S. Moisseev, S. Sato, S. Hamada, M. Nakaoka
    [Show abstract] [Hide abstract]
    ABSTRACT: In this paper, a novel high frequency transformer linked full-bridge type soft-switching phase-shift PWM control scheme DC-DC power converter is presented. A tapped inductor filter is implemented in the proposed soft-switching converter topology to achieve wide load variation range soft-switching PWM constant frequency operation of the DC-DC converter, to minimize circulating current. The presented converter operates with ZVS for leading bridge leg active power switches due to lossless snubber capacitors, and ZCS for lagging bridge leg active power switches with the aid of the high frequency transformer parasitic leakage inductance component and tapped inductor filter. The effectiveness of the proposed soft-switching DC-DC converter is verified in experiment with 2 kW 100 kHz breadboard setup using IGBTs. Actual efficiency of 94% is obtained for the wide load variation range.
    Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual; 07/2003
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    ABSTRACT: This paper presents a novel prototype of a high-frequency transformer parasitic parameter and a lossless inductive snubber assisted series-resonant ZCS-PFM DC-DC power converter, which is designed for high power magnetron. When a conventional series-resonant PFM DC-DC converter is designed for magnetron drive, it is very difficult to implement zero current soft switching commutation due to the influence of the magnetizing current through a high-frequency transformer. In order to implement soft switching commutation, the new topology that can actively utilize the magnetizing current is proposed and discussed on the basis of simulation and experimental results.
    Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual; 07/2003
  • S. Moisseev, S. Hamada, M. Nakaoka
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    ABSTRACT: A novel full-bridge soft-switching phase-shifted pulse width modulation (PWM) DC-DC power converter circuit is presented. A tapped inductor filter has been implemented in the proposed converter topology to achieve soft-switching conditions under wide load variation range, to minimise circulating current without using additional resonant circuit and/or auxiliary switching devices. The effectiveness of the proposed soft-switching DC-DC converter is verified by experiment with 2 kW 100 kHz breadboard setup using insulated gate bipolar transistors (IGBTs).
    Electronics Letters 07/2003; · 1.04 Impact Factor
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    ABSTRACT: A prototype of the active voltage clamped edge resonant ZVS-PWM high-frequency inverter using IGBTs for the electromagnetic induction eddy-current-based fixing rolling drum heating in the new generation copy and printing machines is presented. Its operating principle and unique features are described. The constant frequency duty cycle (asymmetrical PWM) controlled edge-resonant ZVS high-frequency inverter that can achieve stable complete soft commutation over widely specified power regulation ranges is proposed. The operating performances of this high-frequency inverter using the latest IGBTs is discussed and evaluated oil the basis of simulation and experimental results as an induction heated roller of the fixing equipment in a high-speed copy machine.
    IEE Proceedings - Electric Power Applications 04/2003; · 0.55 Impact Factor
  • S. Moisseev, S. Hamada, M. Nakaoka
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    ABSTRACT: A double two-switch forward type high-frequency transformer linked zero-voltage and zero-current mode soft-switching (ZVZCS) pulse width modulation (PWM) DC-DC power converter using IGBTs is presented. A new circuit configuration of the isolated type PWM softly switching converter is proposed to reduce idling and circulating currents in the main circuit without using complex additional active auxiliary resonant snubber circuits and power semiconductor devices, and to decrease the peak voltage across power devices, and their peak current stresses. This soft-switching PWM DC-DC power converter has the unique advantages of less power circuit components and power semiconductor devices, high power conversion efficiency, constant frequency duty cycle control scheme, cost-effective and stable soft-switching operating range under wide load variations for high power applications. The basic operating principle of the soft-switching power converter treated here is illustrated using periodic steady-state circuit analysis for each mode equivalent circuit. The effectiveness of the proposed soft-switching DC-DC power converter built and tested as a 500 W-100 kHz breadboard setup using IGBTs is verified and evaluated on the basis of simulation and theoretical circuit analysis.
    IEE Proceedings - Electric Power Applications 02/2003; · 0.55 Impact Factor
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    ABSTRACT: This paper presents a simple circuit topology of edge-resonant PWM high frequency inverter using IGBTs which can operate under wide soft-switching commutation based on two zero voltage and zero current mode transitions. This inverter call operate on the basis of a constant frequency PWM control-based power regulation scheme under a wide soft-switching range. This soft-switching inverter is applied for consumer induction food cooking and processing appliance. The steady-state operating principle of this soft-switching inverter is described as compared with the active voltage-clamped high frequency inverter. Its power regulation characteristics are illustrated on the basis of the simulation and experimental results
    Power Conversion Conference, 2002. PCC Osaka 2002. Proceedings of the; 02/2002
  • S. Hamada, S. Moisseev, M. Nakaoka
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    ABSTRACT: This paper presents a novel circuit topology of a duplex two-switch forward transformer type zero-voltage and zero-current soft switching (ZVZCS) high frequency DC-DC power converter with PWM control scheme. Based on the conventional paralleled two-switch forward transformer link hard switching converter this circuit configuration does not include complex auxiliary resonant circuit except for an output side tapped-inductor smoothing filter. This new DC-DC converter has advantages as wide soft-switching operation range under broad load variations and PWM regulations, lowered level of the idle and circulating currents through circuit components, small ripple output voltage. The basic operating principle of the converter is illustrated by equivalent circuit for each mode with detailed explanation. Moreover, the feasible practical effectiveness of the proposed soft-switching DC-DC power converter realized on the 500 W 100 kHz breadboard setup is verified and evaluated on basis of simulation and experimental results
    Power Conversion Conference, 2002. PCC Osaka 2002. Proceedings of the; 02/2002

Publication Stats

107 Citations
6.37 Total Impact Points

Institutions

  • 2000–2005
    • Yamaguchi University
      • • Graduate School of Science and Engineering
      • • Department of Electronic and Information System Engineering
      • • Department of Electrical and Electronic Engineering
      Yamaguti, Yamaguchi, Japan
  • 2001
    • Hiroshima City University
      Hirosima, Hiroshima, Japan