Results 41 to 50 of about 176 (97)
A branch current reallocation based energy balancing strategy for the modular multilevel matrix converter operating around equal frequency [PDF]
, 2017 Modular multilevel matrix converter (M3C) is a promising topology for medium-voltage high-power applications. Due to the modular structure, it features easy scalability, high quality output waveforms and superior fault tolerance.
Fan, Boran +4 more
core +3 more sources
Modulation Strategy of a 3 × 5 Modular Multilevel Matrix Converter
Energies, 2018 In this paper, a modulation strategy of a 3 × 5 modular multilevel matrix converter (M3C) is proposed. The circuit of 3 × 5 M3C is firstly introduced. Then, operation rules of 3 × 5 M3C are illustrated, and a connection pattern of branches is determined ...
Rutian Wang +4 more
doaj +1 more source
Control Strategy for Modular Multilevel Matrix Converters at High Output Frequencies [PDF]
, 2017 This paper presents a new control strategy for Modular Multilevel Matrix converters where the output frequency is higher then the input frequency. In operating points when ω$_{out}$ $ \geq \ $ ω$_{in}$ the energy pulsation in the converter cells are ...
Bräckle, Dennis +3 more
core +2 more sources
Hybrid control approach for fast switching MMCs
The Journal of Engineering, Volume 2019, Issue 17, Page 3933-3936, June 2019., 2019 This study presents a new hybrid control approach for different control and switching frequencies for converters of the modular multi‐level converter (MMC) family. Using this concept, it is possible to achieve a higher switching frequency and output voltage update frequency than the MMC control frequency.
Mathias Schnarrenberger +2 more
wiley +1 more source
The Journal of Engineering, Volume 2019, Issue 16, Page 2271-2277, March 2019., 2019 As a new alternative to power transmission, low‐frequency alternating current (LFAC) transmission system has a bright future for offshore wind power transmission. As a core equipment for LFAC system, modularised multi‐level matrix converter (M3C) is a direct electric energy conversion device, which can achieve bi‐directional power flow and provide any ...
Chang Yuan, Ruibing Zhou, Ming Tong
wiley +1 more source
电力工程技术In this paper, the control strategy of modular multilevel matrix converter (M3C) is studied in the scenario of fractional frequency offshore wind power.
HAN Huachun +4 more
doaj +1 more source
IEEE Transactions on Power ElectronicsThis paper proposes a novel solid-state transformer (SST) having a low-frequency medium-voltage AC (LF-MVAC) port distinctively, which can be as the key equipment for smart distribution networks based on LF-MVAC interconnection. The proposed SST has four ports of power-frequency medium-voltage AC (MVAC), LF-MVAC, low-voltage DC (LVDC), and lowvoltage ...
Di Zhu +8 more
openaire +2 more sources
Overload Capability of the Modular Multilevel Matrix Converter for Feeding High Torque Low Speed Drives [PDF]
, 2014 In drive systems, the semiconductors of conventional converters must be dimensioned for the maximum torque. This results in a converter oversizing even for short time overload requirements near standstill, e.g. for mills in the mining industry.
Braun, Michael +3 more
core +2 more sources
电力工程技术Variable speed pumped storage units have obvious advantages in efficiency and adaptability under various operation conditions compared with traditional fixed-speed pumped storage units.
Bo ZHAO +5 more
doaj +1 more source
A branch current reallocation based energy balancing strategy for the modular multilevel matrix converter operating around equal frequency [PDF]
, 2016 The Modular multilevel matrix converter (M3C) is a promising topology for medium-voltage, high-power applications. Due to the modular structure, it is scalable, produces high quality output waveforms and can be fault tolerant.
Fan, Boran +4 more
core