Proceedings ArticleDOI
A comparison of seven-level inverter topologies for multilevel DC-AC power conversion
Prachi A. Salodkar,N. Sandeep,P. S. Kulkarni,R. Y. Udaykumar +3 more
- pp 1-6
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TLDR
In this paper, a simplified multilevel inverter (Switched Transistor MLI) is proposed and its performance is compared with the above mentioned topologies, including diode-clamped inverter, neutral-point clamped, cascaded multicell with separate dc sources, and transistor clamped H-Bridge inverter.Abstract:
Multilevel inverter (MLI) performance is high compared to the conventional two level inverters since they offer high power capability, associated with lower output harmonics and lower commutation losses. However the main drawback of MLI is their increased number of power devices, passive components, complex pulse width modulation control and balancing of capacitor voltages. In this paper the most popular topologies like diode-clamped inverter (neutral-point clamped), cascaded multicell with separate dc sources, and transistor clamped H-Bridge inverter are discussed. A simplified multilevel inverter (Switched Transistor MLI) is proposed and its performance is compared with the above said topologies. Component count and the % total harmonic distortion (THD) of the output voltage are considered as the indexes of the comparative performance. The operating principle of each topology, the most relevant modulation method of all the topologies and the detailed analysis of the proposed Switched Transistor MLI is included. The selection of topology and control techniques depends and varies according to power demands of inverter. Simulation study of all the topologies considered is carried out on MATLAB/SIMULINK platform and the performance of the proposed topology is verified experimentally by the tests performed on a scaled laboratory prototype.read more
Citations
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A High-Efficiency Single-Phase T-Type BCM Microinverter
TL;DR: In this article, a T-type boundary conduction mode (BCM) microinverter was proposed to reduce the switching frequency of the full-bridge BCM micro-inverters.
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Simplified transformer-based multilevel inverter topology and generalisations for renewable energy applications
TL;DR: This study focuses on developing a nine-level inverter comprising of a single transformer and reduced component count and an uncomplicated logic gate-based PWM strategy is developed for generating the gating signals of switches using simple Boolean logic relations.
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Transformer-Based seven-level inverter with single-dc supply for renewable energy applications
TL;DR: In this article, a single-DC source based seven-level inverter for harvesting energy from renewable sources is proposed, where three single-phase transformers with cascaded outputs are powered from the switching power circuit resulting in then generation of multilevel at the output of the inverter.
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Performance of three phase 11-level inverter with reduced number of switches using different PWM techniques
TL;DR: In this paper, a comparison between four different types of pulse width modulation (PWM) techniques, namely, In-phase disposition (IPD), Anti-Phase disposition (APD), Carrier Overlap (CO), and Variable Frequency (VF) PWM methods, has been done.
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Controller Design and Implementation of Solar Panel Companion Inverters
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References
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Journal ArticleDOI
Multilevel inverters: a survey of topologies, controls, and applications
TL;DR: The most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-Clamped (flying capacitor), and cascaded multicell with separate DC sources are presented and the circuit topology options are presented.
A New Neutral-Point-Clamped PWM Inverter
TL;DR: In this article, a neutral-point-clamped PWM inverter composed of main switching devices which operate as switches for PWM and auxiliary switching devices to clamp the output terminal potential to the neutral point potential has been developed.
Journal ArticleDOI
A New Neutral-Point-Clamped PWM Inverter
TL;DR: The neutral-point-clamped PWM inverter adopting the new PWM technique shows an excellent drive system efficiency, including motor efficiency, and is appropriate for a wide-range variable-speed drive system.
Journal ArticleDOI
Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey
Juan Manuel Campos Carrasco,Leopoldo G. Franquelo,Jan T. Bialasiewicz,Eduardo de Teresa Galván,R.C.P. Guisado,Ma.A.M. Prats,Jose I. Leon,Narciso Moreno-Alfonso +7 more
TL;DR: New trends in power electronics for the integration of wind and photovoltaic (PV) power generators are presented and a review of the appropriate storage-system technology used for the Integration of intermittent renewable energy sources is introduced.
Journal ArticleDOI
Multilevel converters for large electric drives
TL;DR: Simulation and experimental results show the superiority of the back-to-back diode-clamped converter over two-level pulsewidth-modulation-based drives.