Results 21 to 30 of about 176 (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

Modeling and Control of Modular Multilevel Matrix Converter for Low-Frequency AC Transmission

open access: yesEnergies, 2023
The modular multilevel matrix converter (M3C) is the core component in low-frequency AC (LFAC) transmission, which is a competitive scheme for offshore wind power integration.
Zheren Zhang, Yanqiu Jin, Zheng Xu
doaj   +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

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

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

Circulating Current Control for the Modular Multilevel Matrix Converter Based on Model Predictive Control [PDF]

open access: yes, 2021
In this work, a Continuous-Control-Set Model Predictive Control (CCS-MPC) strategy, with a saturation scheme for protection, is presented for regulating the circulating currents of a Modular Multilevel Matrix Converter (M3C). The proposed scheme is based
Cardenas, Roberto   +3 more
core   +5 more sources

Integration technology and practice for long‐distance offshore wind power in China

open access: yesEnergy Conversion and Economics, Volume 1, Issue 1, Page 4-19, September 2020., 2020
Abstract Offshore wind power is an important kind of clean energy and of great development potential in the future. It has advantages of high wind speed and stable wind power, and gradually exhibits large‐scale, clustering, and long‐distance characteristics.
Ersheng Pan   +4 more
wiley   +1 more source

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