Results 11 to 20 of about 2,149,244 (246)
Capacitor Voltages Measurement and Balancing in Flying Capacitor Multilevel Converters Utilizing a Single Voltage Sensor [PDF]
IEEE Transactions on Power Electronics, 2017 This paper proposes a new method for measuring capacitor voltages in multilevel flying capacitor (FC) converters that requires only one voltage sensor per phase leg. Multiple dc voltage sensors traditionally used to measure the capacitor voltages are replaced with a single voltage sensor at the ac side of the phase leg.
Farivar, Glen +4 more
openaire +3 more sources
Comparison between flying capacitor and modular multilevel inverter [PDF]
, 2009 The paper describes the operational principle of flying capacitor and modular multilevel inverters. The detailed discussions of dc link capacitors voltage balancing methods for both inverters are given in order to enable fair comparison. The causes of dc
Anaya-Lara, O. +5 more
core +3 more sources
A hybrid multilevel converter for medium and high voltage applications [PDF]
, 2010 This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Ahmed, Khaled +4 more
core +3 more sources
Energy Reports, 2022 The imbalance of capacitor voltage on the DC side of the inverter will cause the third-order current harmonics and the device will be damaged greatly with the increase of voltage stress.
Yingjun Guo +7 more
doaj +1 more source
Research of control strategy of modular multilevel rectifier
Gong-kuang zidonghua, 2014 In view of problem that capacitor voltage balance control strategy of common modular multilevel converter has a large fluctuation of capacitance voltage, a composite capacitor voltage control strategy was proposed on the basis of analysis of mechanism of
LI Shuai +3 more
doaj +1 more source
IET Power Electronics, 2023 This study presents a submodule capacitor voltage self‐balancing method for modular multilevel converters (MMCs) based on switching state matrix construction, which has an advantage over eliminating massive sensor demanding and alleviating computational ...
Zhou Yiyuan +7 more
doaj +1 more source
Control strategy of the modular multilevel matrix converter under unbalanced grid condition
电力工程技术, 2023 Modular multilevel matrix converter (M3C) is a new topology of AC-AC power converter, which has very broad application in low frequency transmission system, high-power asynchronous motor speed regulation and low offshore wind power transmission.
LU Yu +5 more
doaj +1 more source
Analysis of Maximum Load Unbalancing Limits of Cascaded H-Bridge Rectifier Under Unity Power Factor
IEEE Access, 2019 In a cascaded H-bridge rectifier (CHBR), the dc capacitor voltages need to be controlled to balance by the voltage balance controller when the loads are unbalanced.
Zhixuan Gao +5 more
doaj +1 more source
The Research of Capacitor Voltage Balancing Strategy of MMC [PDF]
Advances in Engineering Research, 2015 Compared with the two level voltage source, the modular multilevel converter (MMC) adopting the modular design dose not have the disadvantages such as the direct series connected Insulated gate bipolar (IGBT),high generation of harmonics, etc. MMC is currently studied and applied in high voltage and high power conversion applications.
Jianpo Zhang, Jichen Liu, Xiufang Jia
openaire +1 more source
Modified phase-shifted PWM control for flying capacitor multilevel converters [PDF]
, 2007 The issue of voltage imbalance remains a challenge for the flying capacitor multilevel converter. The phase-shifted pulsewidth modulation (PS-PWM) method has a certain degree of self-balancing properties.
Chunmei Feng +5 more
core +2 more sources