Results 21 to 30 of about 178 (97)

The Improved Unified Power Quality Conditioner with the Modular Multilevel Converter for Power Quality Improvement

open access: yesInternational Transactions on Electrical Energy Systems, Volume 2022, Issue 1, 2022., 2022
Nowadays, researchers focus on the modular multilevel converter (MMC), due to its modularity structure, effective sharing of voltages among the submodule switches, and betterment in the quality of the voltage and current waveforms. First, the conventional unified power quality conditioner is developed with two level voltage source converters connected ...
T. M. Thamizh Thentral   +8 more
wiley   +1 more source

Research on a risk evaluation and suppression method for high-frequency resonance of flexible low-frequency transmission

open access: yesZhejiang dianli, 2022
Due to the long delay of their control chains, voltage source converters (VSCs) in the high frequency band tend to show negative damping, which may give rise to high-frequency resonance when VSCs are connected to power systems.
HUA Wen   +6 more
doaj   +1 more source

New Converter Solution with a Compact Modular Multilevel Structure Suitable for High-Power Medium-Voltage Wind Turbines [PDF]

open access: yes, 2023
Modern wind turbines with increasing power levels are continuously emerging. These power levels are reaching a point where excessively high currents are obtained if the traditional low-voltage wind-turbine structure is adopted.
Gontijo G.   +5 more
core   +1 more source

Grid-forming control strategy for PMSG wind turbines connected to the low-frequency AC transmission system

open access: yesEnergy Reports, 2023
The inevitable consequence of the rapid transition to high-proportion renewable energy and high-proportion power electronics with the development of power systems is the loss of the traditional high-volume generation of synchronous generators, their ...
Feng Guo   +5 more
doaj   +1 more source

Vector control strategies to enable equal frequency operation of the modular multilevel matrix converter [PDF]

open access: yes, 2018
The Modular Multilevel Matrix Converter (M3C) is an ac-to-ac converter suitable for high-power applications. The control of this converter is complex, mainly when the frequencies of the ac systems connected to the ports of the converter are close or ...
Cardenas, Roberto   +4 more
core   +2 more sources

An Overview of Modelling Techniques and Control Strategies for Modular Multilevel Matrix Converters [PDF]

open access: yes, 2020
The Modular Multilevel Matrix Converter is a relatively new power converter topology appropriate for high-power Alternating Current (AC) to AC purposes. Several publications in the literature have highlighted the converter capabilities such as modularity,
Cardenas, Roberto   +7 more
core   +2 more sources

Hybrid Model Predictive Control for Modified Modular Multilevel Switch-Mode Power Amplifier [PDF]

open access: yes, 2021
This article proposes a hybrid model predictive control (HMPC) for a modified modular multilevel switch-mode power amplifier (M3-SMPA). The M3-SMPA consists of two parts connected in series including modular multilevel converter (MMC) and full-bridge ...
Guerrero, Josep M.   +6 more
core   +2 more sources

Control of wind energy conversion systems based on the Modular Multilevel Matrix converter [PDF]

open access: yes, 2017
The nominal power of single Wind Energy Conversion Systems (WECS) has been steadily growing, reaching power ratings close to 10MW. In the power conversion stage, medium-voltage power converters are replacing the conventional low-voltage back-to-back ...
Cardenas, Roberto   +6 more
core   +2 more sources

An optimal full frequency control strategy for the modular multilevel matrix converter based on predictive control [PDF]

open access: yes, 2017
The modular multilevel matrix converter (M3C) is a promising topology for high-voltage high-power applications. Recent researches have proved its significant advantages for adjustable-speed motor drives compared with the back-to-back modular multilevel ...
Fan, Boran   +4 more
core   +1 more source

Control and grid integration of MW-range wind and solar energy conversion systems [PDF]

open access: yes, 2017
Solar-based energy generation has increased by more than ten times over the same period. In total, worldwide electrical energy consumption increased by approximately 6340 TWh from 2003 to 2013.
Cardenas, Roberto   +2 more
core   +1 more source

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