Results 131 to 140 of about 1,408 (165)
Some of the next articles are maybe not open access.
A Seven-Level Hybrid Inverter with DC-Link and Flying Capacitor Voltage Balancing
2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2019Hybrid Multi-Level Inverter(MLI) topologies are gaining attention over conventional ones due to their extended applications in the power, industrial and renewable energy sectors. MLIs are optimized which can provide compact size, reduced cost and higher efficiency compared to the conventional types.
T. Abhilash +2 more
openaire +1 more source
Asymmetrical DC link voltage balance of a cascaded two level inverter based STATCOM
TENCON 2010 - 2010 IEEE Region 10 Conference, 2010Voltage unbalance is one of the main limitation of cascaded based multilevel STATCOM. This paper presents a simple control strategy for the voltage balance of a cascaded two level inverter based STATCOM. The topology consists of two conventional three phase two level inverters connected in cascade.
N N V S Babu, D A Rao, B G Fernandes
openaire +1 more source
A simple method for balancing the DC-link voltage of three-level inverters
2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230), 2002In this paper, a simple control method for balancing the DC-link voltage of three-level neutral-point-clamped (NPC) inverters is presented. The method is based on DC-DC power converter technology. In addition, the proposed topology is enhanced to also improve the NPC inverter's ride-through ability.
A. von Jouanne +2 more
openaire +1 more source
Space Vector Modulation with DC-Link Voltage Balancing Control for Three-Level Inverters
2006 International Conference on Power Electronic, Drives and Energy Systems, 2006The DC-link voltage balancing scheme for three-level inverter is proposed in this paper. Dependence of the DC-link capacitor voltage deviation on DC-link current and inverter switching states is established for proposed three-level inverter. Pulse pattern rearrangements for space vector PWM (SVPWM) using degree of freedom available in choice of ...
Kalpesh H. Bhalodi, Pramod Agrawal
openaire +1 more source
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society, 2007
This paper presents a simple PWM technique of capacitor voltage balance for three-level inverters. For the presented PWM technique only DC-link voltage sensor is required. As compared to previous methods, current sensor is not required for the presented technique. Moreover, number of sectors per sextant is divided into six sectors rather than four. The
Yen-shin Lai, Yi-Kai Chou, Sheng-Yu Pai
openaire +1 more source
This paper presents a simple PWM technique of capacitor voltage balance for three-level inverters. For the presented PWM technique only DC-link voltage sensor is required. As compared to previous methods, current sensor is not required for the presented technique. Moreover, number of sectors per sextant is divided into six sectors rather than four. The
Yen-shin Lai, Yi-Kai Chou, Sheng-Yu Pai
openaire +1 more source
2016 11th International Conference on Industrial and Information Systems (ICIIS), 2016
The Neutral point clamped (NPC) inverter has unbalancing problems of neutral point voltage and DC link capacitors voltages, generally dc link capacitor voltage unbalance leads to neutral point voltage unbalance. In this paper neutral point voltage is balanced using sine PWM associated with phase shift technique.
K. Anuradha, Gandla Radha Krishna
openaire +1 more source
The Neutral point clamped (NPC) inverter has unbalancing problems of neutral point voltage and DC link capacitors voltages, generally dc link capacitor voltage unbalance leads to neutral point voltage unbalance. In this paper neutral point voltage is balanced using sine PWM associated with phase shift technique.
K. Anuradha, Gandla Radha Krishna
openaire +1 more source
2013 IEEE 14th International Vacuum Electronics Conference (IVEC), 2013
Multilevel inverter technology has emerged recently as a very important alternative in the area of high-power medium-voltage energy control. But the unbalance of these different input DC voltage sources constituted the major limitation for the uses of this power converter.
T. Abdelkrim +4 more
openaire +1 more source
Multilevel inverter technology has emerged recently as a very important alternative in the area of high-power medium-voltage energy control. But the unbalance of these different input DC voltage sources constituted the major limitation for the uses of this power converter.
T. Abdelkrim +4 more
openaire +1 more source
Robust DC-Link Voltage-Balancing Strategy Based on Model Predictive Control
IEEE Transactions on Circuits and Systems II: Express Briefs, 2022Yonglu Liu +6 more
openaire +1 more source
Predictive current control and DC-link capacitor voltages balancing for four-leg NPC inverters
2013 IEEE International Symposium on Industrial Electronics, 2013This paper presents a finite control set model predictive strategy to control the three-phase four-leg neutral-point-clamped (NPC) inverters. The four-leg NPC inverter delivers power to the unbalanced/nonlinear three-phase loads, and it can produce three output currents independently. The proposed method uses the discrete-time model of the inverter and
V. Yaramasu +3 more
openaire +1 more source
Cascaded Multilevel Converter based DSTATCOM using p-q theory with DC link voltage balancing
2011 International Conference on Power and Energy Systems, 2011This paper presents the p-q theory based DSTATCOM for reactive power management to control the power factor in a distribution system which serves resistance-reactance loads. Power factor which is one of the measures of power quality in a distribution system plays an important role in the optimal operation of the power system.
K. Anuradha, B. P. Muni, A. D. Raj Kumar
openaire +1 more source