Zobrazeno 1 - 10
of 145
pro vyhledávání: '"June-Seok Lee"'
Publikováno v:
IEEE Access, Vol 11, Pp 41868-41879 (2023)
This paper proposes a clamping modulation technique to reduce and balance power losses in a dual inverter with an isolated DC bus. To drive an open-end winding permanent magnet synchronous motor (OEW-PMSM), dual inverter consisting of six legs has tw
Externí odkaz:
https://doaj.org/article/3be6f14654534aa2b07e3da83bf4b82c
Publikováno v:
Energies, Vol 16, Iss 16, p 6095 (2023)
This article proposes a Distributed-control Architecture (D-CA) and an operation sequence with start-up strategies for a Digital Signal Processor (DSP)-based Solid-State Transformer (SST). Although various control techniques for SSTs have been report
Externí odkaz:
https://doaj.org/article/2930ffe02ad34f4d8f1f50c5a1b02c5b
Publikováno v:
IEEE Access, Vol 8, Pp 100323-100336 (2020)
This paper proposes a rotation carrier-based discontinuous pulse width modulation (CB-DPWM) method for the five-leg inverter (FLI). The FLI based on two-level topology consists of 10 switching devices for driving dual motors. Therefore, two switching
Externí odkaz:
https://doaj.org/article/80108e7569fe4acab316f818f621c554
Publikováno v:
IEEE Access, Vol 8, Pp 187072-187083 (2020)
This paper proposes an improved discontinuous pulse-width modulation (DPWM) method based on phase-shifted PWM (PS-PWM) for three-phase cascaded H-bridge (CHB) multilevel inverters. Due to the CHB multilevel inverters employ a large number of power se
Externí odkaz:
https://doaj.org/article/21866c81569543dd9feae919698e0492
Publikováno v:
Energies, Vol 13, Iss 19, p 5035 (2020)
This paper suggests the reasonable switching frequency determination method for achieving highest efficiency of the railway propulsion system consisting the silicon carbide (SiC) inverter and permanent magnet synchronous motor (PMSM). The SiC power d
Externí odkaz:
https://doaj.org/article/163ba03709fd4cc693c559d2a721cea1
Autor:
Ui-Min Choi, June-Seok Lee
Publikováno v:
Energies, Vol 13, Iss 5, p 1227 (2020)
The cost of the PV energy reduction is still required to increase the penetration level of PV systems in the energy market. The reliability of PV inverters is one of the important aspects to be enhanced in order to reduce the cost of PV energy, since
Externí odkaz:
https://doaj.org/article/f2ca1651e6964ccaa65f29022400d700
Autor:
Kyo Beum Lee, June-Seok Lee
Publikováno v:
Energies, Vol 6, Iss 1, Pp 58-78 (2013)
This paper proposes a variable DC-link reference voltage algorithm for wide range of maximum power point tracking (MPPT) for two-string photovoltaic (PV) systems. A multi-string system, which is a kind of PV system, is widely used due to its many mer
Externí odkaz:
https://doaj.org/article/65c9288521884bad84b72f72e26e859f
Publikováno v:
Energies, Vol 10, Iss 1, p 27 (2016)
This paper proposes a balanced current control strategy for the current source rectifier (CSR) stage of an indirect matrix converter (IMC) under unbalanced grid voltage conditions. If the three-phase grid connected to the voltage source inverter (VSI
Externí odkaz:
https://doaj.org/article/0d3957bf614e4f41a82687f6c34d171c
Publikováno v:
The Korean Journal of Pancreas and Biliary Tract. 28:43-47
Lactococcus garvieae is a Gram-positive cocci that has been known to be a fish pathogen, and considered as a low virulence organism rarely associated with human infection. We report a case of acute cholangitis with common bile duct (CBD) stone and ba
Publikováno v:
IEEE Transactions on Power Electronics. 38:2252-2261