• 넻빀寃깋
  • 븰젅룷듃
  • 끉臾
  • 湲곗뾽떊슜蹂닿퀬꽌
  • 痍⑥뾽옄猷
  • 뙆썙룷씤듃諛곌꼍
  • 꽌떇

끉臾 254,313嫄

This paper presents a hybrid modulation method to limit the neutral point (NP) voltage ripple and reduce the requirement for dc link capacitors during the startup process for three level motor drive systems. The neutral point voltage calculation model is presented to study the large NP voltage rippl
  • 럹씠吏 7럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2019.03.01
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 쟾젰쟾옄븰쉶
  • Xuning Zhang, Dushan Boroyevich, Rolando Burgos
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 fr
  • 럹씠吏 15럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2019.03.01
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 쟾젰쟾옄븰쉶
  • Huiwen Deng, Qi Li, Zhixiang Liu, Lun Li, Weirong Chen
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
  • 럹씠吏 11럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2017.11.02
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 븳援쟾떆궛뾽쑖빀뿰援ъ썝
  • Ko, Jae Su, Cho, Eun Seok, Lee, Yong Keun
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 (PEM
  • 럹씠吏 12럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2019.03.01
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 븳쟾湲고븰쉶
  • 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
  • 럹씠吏 4럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2018.08.23
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 븳쟾湲고븰쉶
  • Myeonghwan Hwang, Donghyeon Kim, Seungjin Yang, Hyunrok Cha, Jongho Han
and development of new high value-added business model. And productivity enhancement of companies, it is expected to contribute to economic and social development. One of the most promising block chain solutions is the Ripple system, which breaks down the bitcoin block chain during the blockchain so
  • 럹씠吏 17럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2019.01.17
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 援젣e-鍮꾩쫰땲뒪븰쉶
  • 옣湲곗쭊
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 METHOD
  • 럹씠吏 10럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2019.03.01
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 쟾젰쟾옄븰쉶
  • Yiqi Liu, Qichao Chen, Ningning Li, Bing Xie, Jianze Wang, Yanchao Ji
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
  • 럹씠吏 5럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2019.03.01
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 쟾젰쟾옄븰쉶
  • Teruhiko KOHAMA, Tamotsu NINOMIYA
and then torque and speed are controlled successfully with a less ripple level in torque response, which improve the system셲 performance. Simulation results trough MATLAB/SIMULINK짰 software gave results that justify the claims.Abstract 1. Introduction 2. Induction Motor Dynamic Model 3. Vector and
  • 럹씠吏 12럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2019.03.01
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 븳쟾湲고븰쉶
  • Z. Boulghasoul, A. Elbacha, E. Elwarraki
systems. Such an application requires a very low torque ripple in order to maintain a good steering feel. However, because of spatial limitations, it cannot help having a partial saturation in the iron core of the PMSM for an EPS system, and this saturation results in a significant torque ripple. Th
  • 럹씠吏 5럹씠吏
  • 媛寃 6,000썝
  • 諛쒗뻾씪 2019.03.01
  • 뙆씪醫낅쪟 븘겕濡쒕껙(pdf)
  • 諛쒗뻾湲곌 쟾젰쟾옄븰쉶
  • Geun-Ho Lee
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