Results 21 to 30 of about 1,485 (260)
Energies, 2021 The modular multilevel converter is capable to reach high-voltage levels with high flexibility, high reliability, and high power quality as it became the standard solution for high-power high-voltage applications that operate with fixed frequency ...
Gustavo Gontijo +3 more
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IET Power Electronics, 2022 This paper proposes a novel active power decoupling circuit (APDC) based on modified Buck converter to reduce the DC‐link voltage ripple of small capacitor motor drive systems. The APDC is placed between the Boost PFC circuit and the DC‐link, and has two
Chao Zhang +4 more
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Capacitor Voltage Ripple and Harmonics Analysis in MMC
南方能源建设, 2023 [Introduction] The rapid development of VSC-HVDC provides practical support for MMC (Modular Multi-Level Converter) topology. Takes a half bridge MMC converter as an example, the relationship between steady-state capacitor voltage fluctuation, harmonic interaction, and bridge arm switching function of MMC is studied in order to provide theoretical ...
Kaikai ZOU +4 more
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High gain transformer-less inverter based-on capacitor clamping multi-phase boost converter [PDF]
Engineering and Technology Journal, 2022 The boosting converters integrated with inverters are widespread use in many applications under transformerless inverter titles, including powered vehicles, PV systems, fuel cells systems and so on. Reliability, quality, maintainability, and reduction in
Oday saad, Jasim Hussain
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Capacitor voltage ripple control based on decoupled power analysis in MMC
2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG), 2017 Modular multilevel converters generate high voltage ripple in the floating capacitors which increases the harmonic content of arm voltages and currents and consequently the losses and can degrade the control performance. In order to reduce this voltage ripple, a large capacitance is usually employed, but the size and cost of the submodules and the ...
Arredondo, Victor +2 more
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A Wind Energy Prediction Scheme Combining Cauchy Variation and Reverse Learning Strategy
Advances in Electrical and Computer Engineering, 2021 Modular multilevel converters (MMCs) can be a reliable solution since they have modular structure and high quality output waveform for permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS). Capacitor voltage balancing
WU, X., SHEN, X., ZHANG, J., ZHANG, Y.
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Advances in Electrical and Computer Engineering, 2021 Modular multilevel converters (MMCs) can be a reliable solution since they have modular structure and high quality output waveform for permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS). Capacitor voltage balancing
VURAL, A. M., KURTOGLU, M., EROGLU, F.
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Evaluation of DC-link voltage ripple in five-phase PWM voltage source inverters
The Journal of Engineering, 2019 This paper presents the analysis of the DC-link voltage switching ripple in five-phase PWM voltage source inverters with balanced load. The analysis is particularly important for the design and selection of a DC-link capacitor making it possible to meet ...
M. Vujacic +4 more
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Research on Calculation Method of DC Side Capacitor Ripple Components for Three-level Inverter
Kongzhi Yu Xinxi Jishu, 2020 Ripple current of DC side capacitor affects capacity selection and life of a capacitor, and ripple voltage of capacitor affects the voltage that power device needs to bear, so analysis of capacitor ripple components is very important for the design of ...
ZHANG Honghao +4 more
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Submodule capacitance requirement reduction with capacitor voltage ripple suppression in MMC
IET Generation, Transmission & Distribution, 2020 In modular multilevel converter (MMC)‐based high‐voltage direct current transmission system, hundreds of submodules (SMs) with large SM capacitance in each arm result in expensive cost and bulky volume. In full‐bridge submodules (FBSMs)‐based MMC (FB‐MMC), a novel capacitor voltage ripple suppression method based on three available variables ...
Yuntao Xiao, Li Peng
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