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This paper presents a new idea to solve the selective harmonic elimination (SHE) equations with non equal dc sources using Hybrid Newton Raphson Method (HNRM). This technique is a combination of genetic algorithm (GA) and Newton Raphson Method (NRM). The HNRM technique effectively eliminates the lower order harmonics from the output voltage of the converter. In this paper, it has been also shown that,...
In this paper, a comparative study of different harmonic elimination techniques has been adopted to mitigate the undesired dominant lower order harmonics from the output voltage of cascaded multilevel inverter. It has been shown that particle swarm optimization technique gives better result as compared to the mathematical theory of resultant and newton raphson method. Theoretical results are verified...
The important features of modular multilevel inverters(MMLIs) are lower power dissipations in the switches, low harmonic contents, modularity and outputs with lower electromagnetic interference (EMI). The MMLI discussed is based on the half-bridge topology. A comparative study of two level VSI and 3, 5 level MMLI is discussed in the context of their total harmonic distortion in simulink models.
Multidimensional scaling is a technique for exploratory analysis of multidimensional data, whose essential part is optimization of a function possessing many adverse properties including multi objectivities, multimodality, and non differentiability etc.,. In this paper, global optimization algorithms for multi Objective problems are chosen for different kind of problems especially in the power Industry...
Multidimensional scaling is a technique for exploratory analysis of multidimensional data, whose essential part is optimization of a function possessing many adverse properties including multi objectivities, multimodality, and non differentiability etc. In this paper, a new algorithm “Minority Charge Carrier Inspired Algorithm” has been proposed. Attempts have been made to carry out detailed analysis...
This study focuses on assessing the effects of temperature on vibration durability of SAC305 PWAs under random vibration excitation on a repetitive shock (RS) shaker. Major complexities involved in quantifying random vibration response and durability data are first discussed through a comparison of specimen unimodal response under harmonic excitation versus multimodal response to random excitation...
In this paper, the vibration durability of SAC305 solder interconnects of Heat-sink Very-thin Quad Flat-pack No-leads (HVQFN) assemblies is investigated by accelerated stress testing and Physics-of-Failure (PoF) simulations, under various types of vibration excitation. In future work, these results will be used to develop PoF models for vibration fatigue durability of Pb-free SAC305 solder interconnects...
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