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논문 250,972건

ripple and increasing efficiency of converter. So we can reduce the size of Capacitor and Inductor2). It means that the size of system is also reduced3). The Time Reverse Recovery loss of diode was also affected4)5), the TRR loss was confirmed to be negligible in the 120kHz 8 Phase case despite the CCM situation. In t
  • 페이지 11페이지
  • 가격 6,000원
  • 발행일 2017.11.02
  • 파일종류 아크로벳(pdf)
  • 발행기관 한국전시산업융합연구원
  • 저자 Ko, Jae Su, Cho, Eun Seok, Lee, Yong Keun
ripple transfer between two-terminal MMC high-voltage direct current systems under unbalanced conditions. The rationality and accuracy of the impedance model are verified through MATLAB/Simulink simulations and experimental results.Abstract I. INTRODUCTION II. BASIC CONFIGURATION AND CONTROL METHO
  • 페이지 10페이지
  • 가격 6,000원
  • 발행일 2018.12.01
  • 파일종류 아크로벳(pdf)
  • 발행기관 전력전자학회
  • 저자 Yiqi Liu, Qichao Chen, Ningning Li, Bing Xie, Jianze Wang, Yanchao Ji
and torque pulsation. The control algorithm having a zero amplitude of torque ripple shows the most cost-effective performance concerning torque pulsation. The least active power pulsation is produced by the control algorithm that nullifies the oscillating component of the instantaneous stator active and reactive powe
  • 페이지 10페이지
  • 가격 6,000원
  • 발행일 2018.12.01
  • 파일종류 아크로벳(pdf)
  • 발행기관 전력전자학회
  • 저자 Yonggyun Park, Daesu Han, Yongsug Suh, Wooyoung Choi
system with automatic interleaving control is presented. Current ripple in output capacitor of multi-phase converter is estimated through a simplified circuit model which is available for any paralleled converter system under ideal out-of-phase operation. Relationships between the ripple and circuit parameters such a
  • 페이지 5페이지
  • 가격 6,000원
  • 발행일 2018.12.01
  • 파일종류 아크로벳(pdf)
  • 발행기관 전력전자학회
  • 저자 Teruhiko KOHAMA, Tamotsu NINOMIYA
In this work, an accurate analysis of low frequency current ripple in residential fuel cell power generation systems is performed based on the proposed residential load model and its unique operation algorithm. Rather than using a constant dc voltage source, a proton exchange membrane fuel cell (PEMFC) model is implem
  • 페이지 12페이지
  • 가격 6,000원
  • 발행일 2018.08.31
  • 파일종류 아크로벳(pdf)
  • 발행기관 대한전기학회
  • 저자 Jong-Soo Kim, Gyu-Yeong Choe, Hyun-Soo Kang, Byoung-Kuk Lee
and the torque ripple, the optimum model was selected by deforming the brush or commutator shape. In addition, to reduce the cogging torque, the model design was carried out by applying the skew method and the magnetization method of a magnet to the rotor. For optimization, the shape, material, and drive system of the
  • 페이지 4페이지
  • 가격 6,000원
  • 발행일 2018.08.23
  • 파일종류 아크로벳(pdf)
  • 발행기관 대한전기학회
  • 저자 Myeonghwan Hwang, Donghyeon Kim, Seungjin Yang, Hyunrok Cha, Jongho Han
and then torque and speed are controlled successfully with a less ripple level in torque response, which improve the system’s performance. Simulation results trough MATLAB/SIMULINK? software gave results that justify the claims.Abstract 1. Introduction 2. Induction Motor Dynamic Model 3. Vector and Direct Torq
  • 페이지 12페이지
  • 가격 6,000원
  • 발행일 2018.08.31
  • 파일종류 아크로벳(pdf)
  • 발행기관 대한전기학회
  • 저자 Z. Boulghasoul, A. Elbacha, E. Elwarraki
systems to reduce the DC-link current ripple. A paralleled generator system generates current ripple by the Pulse Width Modulation (PWM) of each generator side converter. The current ripple in the DC-link degrades the efficiency of the whole generator system and decreases the lifetime of the DC-link capacitors. To mi
  • 페이지 10페이지
  • 가격 6,000원
  • 발행일 2018.12.01
  • 파일종류 아크로벳(pdf)
  • 발행기관 전력전자학회
  • 저자 Min-Gyo Jeong, Hye Ung Shin, Ju-Won Baek, Kyo-Beum Lee
This paper presents the shape optimization of a permanent magnet synchronous motor to reduce the torque ripple and iron loss. Specifically, the harmonics of the electromotive force and cogging torque are decreased by adjusting the permanent magnet arrangement and non-uniform air gap length. In addition, an additional
  • 페이지 7페이지
  • 가격 6,000원
  • 발행일 2018.11.01
  • 파일종류 아크로벳(pdf)
  • 발행기관 한국자기학회
  • 저자 Jin-Hong Kim, Jung-Moo Seo, Hyun-Kyo Jung, Chung-Yuen Won
system. When the system is connected to a three-phase load, it is very sensitive to the characteristics and type of the load. Especially unbalanced three-phase loads, which result in a pulsating power that is twice the output frequency at the inverter output, and cause the dc-link to generate low frequency ripples. Th
  • 페이지 15페이지
  • 가격 6,000원
  • 발행일 2018.12.01
  • 파일종류 아크로벳(pdf)
  • 발행기관 전력전자학회
  • 저자 Huiwen Deng, Qi Li, Zhixiang Liu, Lun Li, Weirong Chen
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