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This paper presents a design and implantation of a modified topology for multilevel inverter (MLI). The proposed topology can be utilized in both symmetrical and asymmetrical source configuration. The proposed topology composed of cascaded basic module with H-bridge. The proposed concept is compared with conventional and some recent topologies. As a results proposed topology required less number of...
Depletion of fossil fuel reserves has lead to identification of renewable sources of energy as alternative sources of energy for power generation. The photovoltaic plant is more prominent in present day scenario. The power electronic converters interfacing the photovoltaic generator with the grid gives rise to various power quality problems such as harmonics in current injected by the inverter into...
This study presents a modular structure for multilevel inverter that operate in symmetric manner. The proposed modular multilevel inverter can generate staircase output voltage waveform that includes all voltage levels. The proposed multilevel inverter is compared with conventional cascaded multilevel inverter in terms of number of switches. Multicarrier sinusoidal pulse width modulation scheme adopted...
This paper emphasizes on the comparative reliability study of different configuration of PV plant. The configurations are categorized on the basis of inverter connection with the PV modules i.e. central inverter, string inverter & module integrated inverter configuration. An existing 3 MW PV plant in central inverter configuration is considered. All the configurations are evaluated against lifetime...
This research paper presents a design of a simplified structured adaptive neuro-fuzzy controller (NFC) technique with an intuitive feedback linearization controlled induction motor (IM) model for extensive torque and speed ripple minimization with better performance enhancement of IM drive. The non-linear dynamics of IM is modeled and simulated based on state space linearization technique in the stationary...
This paper introduces a hybrid topology for multilevel inverter that operates in asymmetric manner. The proposed topology is generalized using series connection of basic module. It offers less number of switches and isolated dc voltage sources as compared to conventional and recent proposed topologies. Carrier based level shift sinusoidal pulse width modulation scheme is adopted for generating switching...
In this paper a new SPWM technique using a trapezoidal triangular multicarrier for a 17 level cascaded H bridge multilevel inverter is simulated and compared with other types of carrier based PWM technique for performance evaluation. Different triangular carrier modulation techniques such as constant switching frequency level shift (LS) PWM technique viz, phase disposition (PD), phase opposition disposition...
In this paper various multicarrier PWM schemes are simulated, to reduce the THD and enhance the output voltage waveforms for seventeen level inverter. Here, three modulation techniques are compared: constant switching frequency (CSF), Phase shift (PS PWM) and variable switching frequency (VSF). These schemes are applied for analysis of both symmetrical and asymmetrical structure of cascaded H-bridge...
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