A Note on Rudin’s Pathological Submodule in $$H^{2}({\mathbb {D}}^2)$$H2(D2)
Sign Up to like & getrecommendations! Published in 2017 at "Integral Equations and Operator Theory"
DOI: 10.1007/s00020-017-2380-z
Abstract: In Rudin (Function theory in polydiscs, Benjamin, New York 1969) constructed a submodule in $$H^{2}({\mathbb {D}}^2)$$H2(D2) that contains no nontrivial bounded functions. This paper shows that this type of submodules is Hilbert–Schmidt by selecting a… read more here.
Keywords: rudin pathological; rudin; submodule mathbb; note rudin ... See more keywords
On classical n-absorbing submodules
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DOI: 10.1007/s40065-019-0253-9
Abstract: Let R a commutative ring with identity and M be a unitary R-module. In this paper, we investigate some properties of n-absorbing submodules of M as a generalization of 2-absorbing submodules. We also define the… read more here.
Keywords: submodule; absorbing submodules; classical absorbing;
A low‐cost MMC submodule topology with fast DC fault handling capability
Sign Up to like & getrecommendations! Published in 2025 at "IET Power Electronics"
DOI: 10.1049/pel2.12846
Abstract: With the continuous development of new energy technologies and the widespread application of high voltage direct current transmission technology, the use of modular multilevel converters (MMC) has significantly increased. Traditional MMCs, composed of half‐bridge submodules,… read more here.
Keywords: low cost; submodule; fault handling; topology ... See more keywords
Thermal Estimation of Modular Multilevel Converter Submodule Using Deep Regression on GRU and LSTM Network
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DOI: 10.1109/access.2022.3191643
Abstract: This paper proposed a GRU/LSTM-based deep regression model for thermal estimation of modular multilevel converter submodule. The MMC is composed of many submodules with the power semiconductors such as IGBTs and MOSFETs. The switches are… read more here.
Keywords: regression; deep regression; submodule; gru lstm ... See more keywords
A Novel Sensor-Reduction Condition Monitoring Approach for MMC Submodule IGBTs Based on Statistics of Inferred On-State Voltage
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Journal of Emerging and Selected Topics in Power Electronics"
DOI: 10.1109/jestpe.2023.3334643
Abstract: Condition monitoring (CM) of modular multilevel converters (MMCs) submodule insulated gate bipolar transistors (IGBTs) is of significance to ensure reliable operation. The ON-state voltage of IGBT is a promising indicator to perform CM while its… read more here.
Keywords: voltage; submodule; state voltage; condition monitoring ... See more keywords
Hybrid Cascaded Multilevel Inverter (HCMLI) With Improved Symmetrical 4-Level Submodule
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Power Electronics"
DOI: 10.1109/tpel.2017.2726087
Abstract: This letter proposes an improved symmetrical 4-level submodule as a basic cell for generating multiple dc voltage levels. A hybrid cascaded multilevel inverter (HCMLI) topology is formed by the combination of n submodules and a… read more here.
Keywords: inverter; hcmli; improved symmetrical; symmetrical level ... See more keywords
Balancing of Submodule Capacitor Voltage of Hybrid Modular Multilevel Converter Under DC-Bus Voltage Variation of HVDC System
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Power Electronics"
DOI: 10.1109/tpel.2019.2896336
Abstract: A hybrid modular multilevel converter (MMC) consists of both half-bridge submodule (HBSM) and full-bridge submodule (FBSM) in each arm. It has several advantages over other MMC topologies, such as low system loss, reduced cost of… read more here.
Keywords: bus voltage; submodule; system; control ... See more keywords
MMC Control Strategy for Converter Lifetime Optimization Based on Thermal Stress Analysis of Lower IGBT Device in Half-Bridge Submodules
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Power Delivery"
DOI: 10.1109/tpwrd.2025.3588731
Abstract: GigaWatt-scale offshore wind farms are being connected using the Modular Multilevel Converter (MMC), in which submodules act as the main building block. The extensive number of connections has a significant effect on the system’s security… read more here.
Keywords: control; stress; lifetime optimization; submodule ... See more keywords
Practical Submodule Capacitor Sizing for Modular Multilevel Converter Considering Grid Faults
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DOI: 10.3390/app10103550
Abstract: Submodule (SM) capacitors are key elements in the modular multilevel converter (MMC), the design of which influences the entire system performance. In practical cases, SM capacitor sizing must consider the abnormal system operation (e.g., grid… read more here.
Keywords: modular multilevel; multilevel converter; considering grid; capacitor sizing ... See more keywords
Submodule Capacitor Voltage Ripple Reduction of Full-Bridge Submodule-Based MMC (FBSM-MMC) with Non-Sinusoidal Voltage Injection
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DOI: 10.3390/en16114305
Abstract: The full-bridge submodule (FBSM)-based modular multilevel converter (FBSM-MMC) offers promising performance due to its ability to output negative FBSM voltage. This paper studies this ability of the FBSM-MMC under zero-sequence voltage injection (ZSVI) and second-order… read more here.
Keywords: injection; fbsm; voltage; submodule ... See more keywords
Small approximately 2-absorbing submodules and modules
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Interdisciplinary Mathematics"
DOI: 10.47974/jim-1774
Abstract: In this paper, we introduce new classes of submodules and modules named small approximately 2-absorbing submodules and modules which are new generalization of small prime submodule and small prime module. A proper submodule N of… read more here.
Keywords: absorbing submodules; small approximately; submodule; submodules modules ... See more keywords