Analysis and application of inventive selective harmonic elimination strategy to eliminate high order harmonic from asymmetrical multi-level inverter

The most prominent issue relevant to the initiative multi-level inverters is how to provide a high-step staircase quasi-sinusoidal voltage against low switch numbers. This paper presents an innovative asymmetrical multi-level inverter structured by cascaded sub-multi-level inverter bonded to H-bridg...

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Bibliographic Details
Published in:Multidimensional systems and signal processing Vol. 31; no. 2; pp. 411 - 429
Main Author: Darvish Falehi, Ali
Format: Journal Article
Language:English
Published: New York Springer US 01.04.2020
Springer Nature B.V
Subjects:
Artificial Intelligence
Asymmetry
Circuits and Systems
Computer simulation
Electric potential
Electrical Engineering
Engineering
Harmonics
Inverters
Multiple objective analysis
Optimization
Power sources
Pulse duration modulation
Search algorithms
Signal,Image and Speech Processing
Voltage
Reduced structure
High-order harmonics
MOBA
Asymmetrical multi-level inverter
RI-SHEPWM
ISSN:0923-6082, 1573-0824
Online Access:Get full text
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Summary:The most prominent issue relevant to the initiative multi-level inverters is how to provide a high-step staircase quasi-sinusoidal voltage against low switch numbers. This paper presents an innovative asymmetrical multi-level inverter structured by cascaded sub-multi-level inverter bonded to H-bridge inverter to unravel aforesaid issue. DC power sources of sub-multi-level inverters have been determined based on an especial exponential model to provide zero and positive steps, and so, negative steps can be achieved using H-bridge inverter bonded to cascaded sub-multi-level inverters. From viewpoint of harmonic components of high level output voltage, high order harmonics must be indispensability eliminated. Toward this subject, Rectangular Incision-Selective Harmonic Elimination-Pulse Width Modulation (RI-SHEPWM) along with fractional values of DC sources have been scheduled to be the fundamental approach aimed at elimination of twenty-ninth, thirty-first and thirty-fifth harmonics. In according to the nature of multi-objective state of the problem, executing the multi-objective optimization method isn’t avoidable. Due to high performance of Multi Objective Bees Algorithm (MOBA) to solve the non-linear objectives, the elimination of these harmonics is formulated by pertinent fitness functions utilizing MOBA. Putting it all together, the pertinent deductive analysis as well as both the simulation and experimental outcomes have transparently corroborated the capability of the held forth asymmetrical multi-level inverter. Meanwhile, elimination of all determined high-order harmonics i.e., twenty-ninth, thirty-first and thirty-fifth harmonics utilizing RI-SHEPWM based on MOBA has been approved.
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ISSN:0923-6082
1573-0824
DOI:10.1007/s11045-019-00669-0