Zobrazeno 1 - 10
of 916
pro vyhledávání: '"hvdc power convertors"'
Publikováno v:
IET Generation, Transmission & Distribution, Vol 18, Iss 22, Pp 3555-3566 (2024)
Abstract The lightweight of modular multilevel converter (MMC) and the DC faults ride‐through ability are main challenges for MMC‐high voltage direct current (HVDC) transmission systems. By introducing the concept of time‐division multiplexing,
Externí odkaz:
https://doaj.org/article/4eb67533f06349b494ee7e851245d9ca
Autor:
Farzin Gharaghani, Mehdi Asadi
Publikováno v:
IET Power Electronics, Vol 17, Iss 15, Pp 2549-2560 (2024)
Abstract Modular multilevel green converter based high voltage direct current (MMC‐HVDC) transmission system has become a practical solution to interconnect renewable energy sources to main AC grids. Connecting the MMC to a weak AC system is still
Externí odkaz:
https://doaj.org/article/295069fdc84d4caeb6f145b4ac9b5dfb
Publikováno v:
IET Power Electronics, Vol 17, Iss 14, Pp 1736-1748 (2024)
Abstract In a modular multilevel converter (MMC) system, the sub‐module capacitors account for a large proportion of the cost, volume, and weight. This paper proposed a method to reduce the total capacitance of MMC based on the combination of boost
Externí odkaz:
https://doaj.org/article/d681cfee1d5548b2b3c2d6b8df08f26a
Autor:
Saeed Najafpour, Reza Ghandehari
Publikováno v:
IET Power Electronics, Vol 17, Iss 14, Pp 2095-2108 (2024)
Abstract The voltage reinjection strategy is an effective solution to improve the voltage quality of the voltage source inverters for high‐power applications. In this article, the fundamentals of voltage reinjection strategy are analyzed to reduce
Externí odkaz:
https://doaj.org/article/6b7ca7df02b44f83894006c858a097fb
Publikováno v:
IET Power Electronics, Vol 17, Iss 14, Pp 1943-1959 (2024)
Abstract The modular multilevel DC–DC transformer (MMDCT) provides a reliable solution to overcome the challenges of conventional dual‐active‐bridge converters in terms of power semiconductors ratings and dv/dt stress on transformer coupling wi
Externí odkaz:
https://doaj.org/article/8cd14486411546cabe9c7d3fdf5b970c
Autor:
Lukas Bergmann, Mark‐M. Bakran
Publikováno v:
IET Power Electronics, Vol 17, Iss 7, Pp 789-801 (2024)
Abstract This article presents the design and experimental validation of a novel semiconductor area optimised 3300 V half bridge with Silicon Carbide (SiC) MOSFETs for HVDC converters. Based on a loss simulation, the problem statement is provided. On
Externí odkaz:
https://doaj.org/article/2a9b6b5f889e44109c2c4353b62e6c05
Autor:
Lei Qi, Ze Li, Xiangyu Zhang, Jin Yang, Yuanfang Lu, Jingfei Wang, Fuyue Wen, Kefeng Wang, Xinyu Hu
Publikováno v:
IET Power Electronics, Vol 17, Iss 3, Pp 394-401 (2024)
Abstract Bi‐mode Insulated Gate Transistor (BIGT), owing to its notable attributes in power density and compact dimensions, holds promising applications in the realm of high power converters. However, its characteristic of the voltage drop in diode
Externí odkaz:
https://doaj.org/article/423dd405a31a4e6b8f0a8f8bcd4ff978
Publikováno v:
IET Power Electronics, Vol 17, Iss 2, Pp 183-198 (2024)
Abstract To solve the commutation failure (CF) issues in high voltage direct current (HVDC) transmission systems based on line commutated converter (LCC), this paper proposes a hybrid solution combining the LCC inverter with the continuously controll
Externí odkaz:
https://doaj.org/article/61efb67f84aa4f7d8fa174f60727c831
Publikováno v:
IET Power Electronics, Vol 16, Iss 14, Pp 2445-2448 (2023)
Abstract It is very important to obtain high reliability in the high‐voltage direct current (HVDC) system operation because of extremely high and huge power capacity. To guarantee the reliability IEC‐62501 standard requires valve test for the vol
Externí odkaz:
https://doaj.org/article/4de07f50ae2847dd8ddec3cf8d05b1c9
Publikováno v:
IET Renewable Power Generation, Vol 17, Iss 14, Pp 3554-3567 (2023)
Abstract The diode rectifier unit (DRU) is promising in offshore wind power integration due to its reliability and economy. Offshore AC voltage control is the key technology of the DRU‐based scheme. In this paper, a low‐cost offshore wind power i
Externí odkaz:
https://doaj.org/article/735fe310d4834a4cbf8e44c245a8245c