Results 231 to 240 of about 1,043,189 (284)
Some of the next articles are maybe not open access.
MMC Capacitor Voltage Decoupling and Balancing Controls
IEEE Transactions on Power Delivery, 2015A Modular Multilevel Converter (MMC) control system based on converter energy storage is proposed in this paper for two different control modes: active power and dc voltage. The proposed control system decouples the sub-module (SM) capacitor voltages from the dc bus voltage. One of the practical applications is the management of active redundant SMs. A
Xavier Guillaud +2 more
exaly +4 more sources
A generalized capacitor voltage balancing scheme for flying capacitor multilevel converters
2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2010 Multilevel power electronic converters are the converter of choice in medium-voltage applications due to their reduced switch voltage stress, better harmonic performance, and lower switching losses. Although it has received little attention, the flying-capacitor multilevel converter has a distinct advantage in terms of its ease of capacitor voltage ...
Mostafa Khazraei +3 more
openaire +2 more sources
Voltage balancing using switched capacitors
Electric Power Systems Research, 1992Thyristor switched capacitors (TSCs) are a useful means of load balancing and reactive power support. The control of a general load by a binary weighted switched capacitor system is discussed in this paper along with a simple control scheme where the capacitor bank across a line pair is adjusted to control the fundamental voltage magnitude for that ...
Ledwich, G. F. +2 more
openaire +3 more sources
Simple direct capacitor voltage balancing of a flying capacitor converter
2005 European Conference on Power Electronics and Applications, 2005This paper proposes a new charge control method for voltage balancing of flying capacitor multilevel converters. Only the signs of the deviations from the nominal capacitor voltages and the sign of the output current are needed to choose proper switching states for charging or discharging the ...
Clos, G. +3 more
openaire +1 more source
A New Nine-Level Voltage Source Inverter with Capacitor Voltage Balancing
IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018In this paper, a new nine-level voltage source inverter for medium-voltage high-power applications is proposed. The proposed topology is a combination of the active nested neutral-point clamped inverter and the flying capacitor inverter. A carrier-based sinusoidal pulse width modulation scheme is developed to balance the voltage of the flying ...
Rasul Tarvirdilu-Asl, Mehdi Narimani
openaire +1 more source
Capacitor voltage balancing control for series MMC tap
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017The series HVDC tap based on modular multilevel converter (MMC) has been proposed to provide power supply for rural places. However, most of current capacitor voltage balancing control strategies are not suitable for series MMC tap. In this paper, the principle of power transfer between phases, arms and sub-modules (SMs) in a series MMC are analyzed. A
Zigao Xu +3 more
openaire +1 more source
IET Power Electronics, 2012 This article provides an analysis of modular multilevel converter capacitor voltage balancing based on phase voltage redundant ...
Barry W Williams, G P Adam, S J Finney
exaly +4 more sources
Capacitor Voltage Balancing Schemes in Flying Capacitor Multilevel Inverters
2007 IEEE Power Electronics Specialists Conference, 2007This paper focuses on the development of capacitor voltage balancing methods in a flying capacitor multilevel inverter (FCMLI). Three such strategies have been described and have been applied to a five-level CMLI. The sinusoidal pulse width modulation technique has been used while making the proposals.
Anshuman Shukla +2 more
openaire +1 more source
A Novel Diode-Clamped Modular Multilevel Converter With Simplified Capacitor Voltage-Balancing Control [PDF]
IEEE Transactions on Industrial Electronics, 2017 © 1982-2012 IEEE. Multilevel converters have become very attractive for high-voltage-level power conversion in renewable power generation applications. The converter topology is an important issue in the studies of multilevel converter.
Chen Zhen, Youguang Guo, Zhigang Gao
exaly +2 more sources
2017 IEEE 18th Workshop on Control and Modeling for Power Electronics (COMPEL), 2017
Capacitor voltage natural balancing is an attractive feature of flying capacitor multilevel (FCML) converters. However, with the commonly used phase-shifted pulse-width modulation (PSPWM), the capacitor voltages still can deviate, and active balancing is often required.
Zichao Ye +3 more
openaire +1 more source
Capacitor voltage natural balancing is an attractive feature of flying capacitor multilevel (FCML) converters. However, with the commonly used phase-shifted pulse-width modulation (PSPWM), the capacitor voltages still can deviate, and active balancing is often required.
Zichao Ye +3 more
openaire +1 more source