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Concha, Esteban (author), Rivera, Sebastian (author), Dekka, Apparao (author), Lizana F., Ricardo (author)Modular multilevel series-parallel converters (MM-SPC) have become a suitable solution to provide higher operating voltages, fault tolerance operation, and reliability at a reduced cost, due to their ability to achieve a simpler internal voltage balance. Therefore, MMSPC is a promising solution for applications where the nominal operating...conference paper 2023
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Shekhar, A. (author), Soeiro, Thiago B. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)During the operation of a three line ac link in parallel with a ac-dc-ac link system that employs Back-to-Back (B2B)Medium Voltage Modular Multilevel Converters (MMC), a path for the low frequency zero sequence currents is shown to exist. Apart from causing additional losses, these currents can result in limitations on power capacity. A...conference paper 2019
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Shekhar, A. (author), Beloqui Larumbe, L. (author), Soeiro, Thiago B. (author), Wu, Y. (author), Bauer, P. (author)There is an increasing focus on integrating flexible dc links for bulk power routing in medium voltage distribution grids. In such applications, the ac-dc Modular Multilevel Converter (MMC) devised for medium voltage and high-power ratings can be an interesting choice. This paper highlights some less explored design trade-offs arising due to...conference paper 2019
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Shahnazian, Fatemeh (author), Ebrahim Adabi, M. (author), Adabi, Jafar (author), Pouresmaeil, Edris (author), Rouzbehi, Kumars (author), Rodrigues, Eduardo M. G. (author), Catalão, João P. S. (author)This paper presents a dynamic model of modular multilevel converters (MMCs), which are considered as an effective interface between energy sources and the power grid. By improving the converter performance, appropriate reactive power compensation is guaranteed. Modulation indices are calculated based on detailed harmonic evaluations of both...journal article 2019
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Tsolaridis, Georgios (author), Kontos, E. (author), Chaudhary, Sanjay K. (author), Bauer, P. (author), Teodorescu, Remus (author)Grid faults are common in power systems and can have a severe impact on the operation of the converters in the system. In this paper, the operation of a Modular Multilevel Converter (MMC)-based Static Synchronous Compensators (STATCOM) is investigated during grid faults. The study focuses on the challenging internal control of the converter...journal article 2017
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- Wei, J. (author) master thesis 2016