Results 161 to 170 of about 2,128 (219)

Optimal design of NPC and Active-NPC transformerless PV inverters

2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2012
Targeting at a cost-effective deployment of grid-connected PhotoVoltaic (PV) systems, this paper presents a new methodology for the optimal design of transformerless PV inverters, which are based on the Neutral Point Clamped (NPC) and the Active-Neutral Point Clamped (ANPC) topologies. The design optimization results demonstrate that a different set of
S. Saridakis, E. Koutroulis, F. Blaabjerg   +2 more
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Cascaded Transformers-Based Multilevel Inverters With NPC

IEEE Transactions on Industrial Electronics, 2022
The basic structure and generalization of two cascaded transformer multilevel inverters (CTMIs) are proposed in this paper. Such configurations are based on cascaded symmetrical transformers coupled to two-level (2L) legs and three-level (3L) neutral-point clamped (NPC) legs. One configuration has a shared 2L leg, connected to all transformers.
Amanda Pereira Monteiro, Filipe Antônio da Costa Bahia, Cursino Brandão Jacobina, Reuben Palmer Rezende de Sousa   +3 more
openaire   +1 more source

DTC of Three-Level NPC Inverter Fed Five-Phase Induction Motor Drive With Novel Neutral Point Voltage Balancing Scheme

IEEE Transactions on Power Electronics, 2018
In this paper, direct torque control (DTC) of five-phase induction motor (FPIM) is implemented using three-level neutral point clamped (TL-NPC) inverter. One of the advantages of three-level inverter over two-level one for DTC operation is the low torque
Ranjan Kumar Behera, Atif Iqbal
exaly   +2 more sources

Experimental development of a hysteresis modulated NPC inverter

Proceedings of 2003 IEEE Conference on Control Applications, 2003. CCA 2003., 2004
The paper presents the laboratory prototype realization of a system constituted by an IGBT based neutral point clamped (NPC) inverter, a driver stage and a digital control circuit board. A hysteresis control technique, developed by authors in previous papers, suitable for the current control of the NPC inverter is implemented in the control system. The
BELLINI A., BIFARETTI S., COSTANTINI, FIGALLI, Gennaro   +3 more
openaire   +2 more sources

Supraharmonics reduction in NPC inverter with random PWM

2017 IEEE 26th International Symposium on Industrial Electronics (ISIE), 2017
The international standardization community is currently reviewing the harmonic distortion limits in the frequency range 2 to 150 kHz, referred to as supraharmonics. Power electronics has emerged as a ubiquitous technology, which also plays a critical role in this subject.
Aurora Gil de Castro, Antonio Moreno-Muñoz, Joaquin Garrido, Sarah K. Rönnberg, Emilio J. Palacios-García, Tomas Morales   +5 more
openaire   +1 more source

Integrated Modulation of Dual-Parallel NPC Inverters With Eliminated CMV

IEEE Transactions on Industrial Electronics, 2022
An integrated zero common mode voltage (ZCMV) modulation algorithm is developed in this research for dual-parallel neutral-point-clamped (NPC) inverters treated as an integrated system. While the conventional methods achieve CMV elimination with the cost of worse harmonic performance, the proposed method guarantees zero CMV and better current quality ...
Weiwei Li, Xueguang Zhang, Dianguo Xu 0001   +2 more
openaire   +1 more source

Diagnosis of a NPC inverter using Goertzel Filters

2019 23rd International Conference on System Theory, Control and Computing (ICSTCC), 2019
Insulated Gate Bipolar Transistors (IGBTs), found in Neutral Point Clamped inverters, can be affected by open-circuit and short-circuit faults. A common mistake found in several papers, from the literature, is highlighted and corrected in this work. The amended method, based on the Park Transform, is extended to isolate the faulty IGBT in a three-level
Abdelkarim Abdelkarim, Houcine Chafouk, Lavinius Ioan Gliga, Dumitru Popescu   +3 more
openaire   +1 more source

A 30kW transformer-less PV NPC inverter

2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), 2012
Conventional PV power converters are usually based on configurations that include DC-DC boost converter stage, voltage source inverter stage, passive filter stage and grid interface isolation transformer, whose presence implies less efficiency and higher costs, in particular for medium size power PV converters.
CRESCIMBINI, Fabio, LIDOZZI, ALESSANDRO, E. Rovelli, A. Salvadore, SOLERO, LUCA   +4 more
openaire   +2 more sources

Thirteen level cascaded NPC inverter

2010 IEEE 26-th Convention of Electrical and Electronics Engineers in Israel, 2010
The paper presents a novel, thirteen level, and cascaded, neutral point clamped inverter. The inverter is modulated by phase disposition (PD) carrier based PWM method. The load of the inverter is a synchronous machine. The simulation results for different voltage levels, different modulation frequencies, and different carrier frequencies are presented.
Raul Rabinovici, Dmitry Baimel, Jacek Tomasik, Adrian Zuckerberger   +3 more
openaire   +1 more source

SVM algorithm of three-level NPC inverter

2008 3rd IEEE Conference on Industrial Electronics and Applications, 2008
On the basis of presenting the principles of space vector modulation (svm) of three-level neutral point clamped (NPC) inverter, an approach to implementation of SVM is proposed. The dwell times of vectors are calculated according to the volt-second balancing. A triangle is adopted to compare with three switching points.
null Shanmei Cheng, null Yajun Liu, null Bing Wu   +2 more
openaire   +1 more source