Zobrazeno 1 - 10
of 232
pro vyhledávání: '"nearest-level modulation"'
Autor:
Andrei O. Almeida, Matheus S. Paulo, Daniel P. Teixeira, Rodolfo Lacerda Valle, Pedro M. Almeida, Pedro Gomes Barbosa
Publikováno v:
Eletrônica de Potência, Vol 29 (2024)
This paper analyzes a 12-MW direct-drive wind energy converter system featuring a 6.6-kV, 132-pole permanent magnet synchronous generator, similar to the Haliade-X 12-MW manufactured by General Electric. The proposed system utilizes a back-to-back mo
Externí odkaz:
https://doaj.org/article/309bf8e015944b5ca5e45f13bcf0df8d
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 158, Iss , Pp 109970- (2024)
The reliable and consistent operations of modular multilevel converters (MMCs) under fault conditions are crucial for high-voltage and high-power applications. To strengthen the performances of MMCs under submodule (SM) faults, a fault- tolerant stra
Externí odkaz:
https://doaj.org/article/fc45b0bfb1e045c4844a35e9b12d4f4a
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol 10, Iss 4, Pp 1642-1653 (2024)
Due to the large number of submodules (SMs), and modular multilevel converters (MMCs) in high-voltage applications, they are usually regulated by the nearest level modulation (NLM). Moreover, the large number of SMs causes a challenge for the fault d
Externí odkaz:
https://doaj.org/article/27c6d799c8ea46adb17faac355e49484
Publikováno v:
Protection and Control of Modern Power Systems, Vol 8, Iss 1, Pp 1-15 (2023)
Abstract Accurate evaluation of power losses in a modular multilevel converter (MMC) is very important for circuit component selection, cooling system design, and reliability analysis of power transmission systems. However, the existing converter val
Externí odkaz:
https://doaj.org/article/a9f2a82dfcaa4c01861b765b50c884b5
Publikováno v:
IET Generation, Transmission & Distribution, Vol 17, Iss 16, Pp 3648-3657 (2023)
Abstract The nearest level modulation (NLM) is used to automatically generate ac side voltages of sub‐modules in modular multilevel converter (MMC). Existing literature seldom presents models that describe complex NLM processes. This paper proposes
Externí odkaz:
https://doaj.org/article/d68dd83ba8e14ae5b795b927c5cb6be1
Publikováno v:
IEEE Access, Vol 11, Pp 38082-38093 (2023)
A switched-capacitor based 13-level inverter with high gain and reduced switch stress is presented in this article. The 13-level single-phase ac output voltage is achieved with a voltage gain of 6 by utilizing a single dc source, 14 switches, 3 capac
Externí odkaz:
https://doaj.org/article/9f6a1d835f994b2f98989f25fb89fc05
Publikováno v:
IEEE Access, Vol 11, Pp 23420-23432 (2023)
This paper focuses on introducing a modular cascaded battery energy storage system and establishing a mathematical model for both the AC and DC sides of the energy storage system. Based on this, a corresponding control strategy is proposed. To achiev
Externí odkaz:
https://doaj.org/article/8d2a1ff494b34398b39b9299e92d2a3c
Akademický článek
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Publikováno v:
电力工程技术, Vol 41, Iss 5, Pp 186-192 (2022)
As the voltage level is relatively low under medium and low voltage distribution network,the number of modular multilevel converter (MMC) sub-modules is also small. Therefore,the modulation mode of MMC with small quantities of sub-modules has an impo
Externí odkaz:
https://doaj.org/article/0dd707ecff6041338ae5370f9724ba2a
Publikováno v:
e-Prime: Advances in Electrical Engineering, Electronics and Energy, Vol 4, Iss , Pp 100152- (2023)
A new three-phase eleven-level packed E-Cell (PEC11) converter is formed by selecting a quintuple ratio (1:5) between the voltages of solar photovoltaic arrays. The converter consists of three solar panels per phase, highest level of staircase voltag
Externí odkaz:
https://doaj.org/article/50dfff4d0ab7434e94f7e21eb2504e23