Results 191 to 200 of about 8,959 (234)

A Novel STATCOM Based on Diode-Clamped Modular Multilevel Converters

IEEE Transactions on Power Electronics, 2017
A new static synchronous compensator (STATCOM) based on the diode-clamped modular multilevel converter (DCM2 C) is proposed in this paper. In this converter topology, the capacitor voltage is clamped by using a low power rating diode in each submodule.
Xiangdong Liu, Jingliang Lv, Congzhe Gao, Zhen Chen, Si Chen   +4 more
openaire   +1 more source

Floating capacitor voltage regulation in diode clamped hybrid multilevel converters

2009 IEEE Electric Ship Technologies Symposium, 2009
The family of hybrid topologies consisting primarily of a main Neutral Point Clamped (NPC) 3-phase inverter followed by one or more series connected H-Bridges in each output phase show promise in medium voltage applications requiring high power quality and minimal size and weight. Another distinct advantage of this topology is the ability to supply the
James A. Ulrich, Ashish R. Bendre
openaire   +1 more source

Five-Level Diode-Clamped Inverter With Three-Level Boost Converter

IEEE Transactions on Industrial Electronics, 2014
This paper proposes an active front-end solution to balance the dc-link capacitor voltage of the five-level diode-clamped inverter. Capacitor voltage balancing is performed by a three-level boost converter connected to the two inner capacitors of a five-level diode-clamped inverter and additional balancing circuits at the other two outer capacitors ...
Rosmadi Abdullah, Nasrudin Abd Rahim, Siti Rohani Sheikh Raihan, Abu Zaharin Ahmad   +3 more
openaire   +1 more source

Diode-clamped multilevel converters: a practicable way to balance DC-link voltages

IEEE Transactions on Industrial Electronics, 2002
The converter topologies identified as diode-clamped multilevel (DCM) or, equivalently, as multipoint clamped (MPC), are rarely used in industrial applications, owing to some serious drawbacks involving mainly the stacked bank of capacitors that constitutes their multilevel DC link. The balance of the capacitor voltages is not possible in all operating
MARCHESONI, MARIO, P. TENCA
openaire   +2 more sources

Voltage Balancing Control of Diode-Clamped Multilevel Converters with Passive Front-Ends

2007 IEEE International Symposium on Industrial Electronics, 2007
In the previous literature, it has been reported that it is not possible to guarantee the balance of the dc-link capacitor voltages of three-phase diode-clamped multilevel dc-ac converters with passive front-ends for high modulation indices, especially for more than three levels.
Sergio Busquets-Monge, Salvador Alepuz, Josep Bordonau, Juan Peracaula   +3 more
openaire   +1 more source

A Current Flow Model for m-Level Diode-Clamped Multilevel Converters

IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics, 2006
Multilevel converters have gained much attention in recent years since they have been a key technology of power electronics to reach the high power ratings required by many applications. Some topological limitations such as dc side voltage balancing, however, have hindered the use of these converters.
S.A. Khajehoddin, A. Bakhshai, P.K. Jain
openaire   +1 more source

Topology and Modulation for a New Multilevel Diode-Clamped Matrix Converter

IEEE Transactions on Power Electronics, 2014
To expand the matrix converter application in high power area, a new three-level diode-clamped matrix converter topology as well as a related multicarrier-based modulation scheme is proposed. The topology inherits the features from the conventional multilevel inverter and the indirect matrix converter, which is composed of a cascaded-rectifier and a ...
Yao Sun, Wenjing Xiong, Mei Su, Xing Li, Hanbing Dan, Jian Yang   +5 more
openaire   +1 more source

A Simplified Virtual Vector PWM for Four-Level Diode-Clamped Converter

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019
The inherent problem of dc-link capacitor voltage imbalance in multilevel diode-clamped converters limits their development and industrial applications. By using conventional space vector PWM (CSVPWM), for higher voltage levels (>3), the balancing of capacitors voltages cannot be attained under some operational conditions.
Qamar Muhammad Attique, Kui Wang, Yongdong Li   +2 more
openaire   +1 more source

Predictive control of a back to back Diode Clamped Multilevel converter

2010 IEEE International Conference on Industrial Technology, 2010
In this work, a back-to-back Diode Clamped Multilevel converter system using Model Predictive Control is evaluated. DC link voltage balance and currents as main parameters are optimized by means of a proper cost function design. This strategy allows fast system response and capacitors voltage balance under various operating conditions including active ...
Santiago A. Verne, Maria I. Valla
openaire   +1 more source

A diode-clamped multilevel converter with reduced number of clamping diodes

Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04., 2004
This paper presents a diode-clamped multilevel converter topology with reduced number of clamping diodes. The novel topology uses a combination of multilevel converter cells with different number of levels. The proposed topology and its switching pattern are discussed based on a five-level converter, and it can be easily extended to N-level converter ...
null Zhiguo Pan, null Fang Z. Peng, V. Stefanovic, M. Leuthen   +3 more
openaire   +1 more source