A Review on harmonics elimination in real time for cascaded H-bridge multilevel inverter using particle swarm optimization

Abstract

Renewable energy has a great importance for power generation as it does not use the fossils fuels. Energy generated from alternative energy sources are weather dependent. To generate a continuous power to meet the load requirements, Battery energy storage system are used. Power conversion process must be much efficient as possible to convert the DC stored energy into AC. This conversion process is usually done by the help of inverters. This paper gives the brief overview on three main categories of multilevel inverter like cascaded h-bridge, neutral point clamped and flying capacitor multilevel inverter and highlights their advantages which can also help the scholars to deeply explore the categories of multilevel inverter. Harmonic elimination is usually done by controlling the switching angles of the inverter. Among all the switching angles techniques, selective harmonic elimination pulse width modulation (SHEPWM) technique is widely used, that has also discussed in this paper. Furthermore, to eliminate the harmonics using SHEPWM, it has the set of nonlinear transcendental equations, these set of equations can be effieceintly solved by the optimization methods. The most efficient and reliable optimization method like particle swarm optimization has been discussed with multiple objective functions in this paper. This paper will help the scholars to understand the finest category of multilevel inverter for harmonic elimination in terms of efficiency and output quality.

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

“…This aforementioned is repeated for various modulus indices (M) ranging from 0.01 to 1.20. A genetic algorithms evolves a set of solutions (α1, α2, α3, ..., αk) called the population, which is randomly initialized, to efficiently guide the search towards good solutions in the research space [13] The fitness function makes it possible to minimize the low-order harmonics of a three-phase inverter (5 th , 7 th , 11 th ... 31 th harmonics) for obtaining an optimal solution to eliminate prespecified harmonics [34]. The fitness function for five switching angles is given as follows.…”

“…Genetic algorithms (GAs) [10], ant colony optimization [11], and particle swarm optimization (PSO) have been used effectively to solve the SHE problem. The artificial neural network algorithm [12], [13], colonial competition algorithm [14], and bee algorithm [15] have been used to generate the switching angles in real time. The search algorithm can be improved effectively and efficiently by using hybrid GAs (HGAs), which are a combination of GAs and local search (LS) algorithms [16], [17].…”

A review on techniques for improving power quality: research gaps and emerging trends

“…About 22% of India's generated power is lost in transmission and distribution. As a result, many scholars, academics, and businesspeople have focused on these issues over the last fifteen years [51]- [57]. As part of the collected work done on the topic, this study provides a taxonomy of power performance improvement approaches and control tactics for distribution systems with and without DGs.…”

“…Ideal placement of FACTS devices in IEEE 33 and 57 bus s ystems is determined using a sophisticated GWO and DSTATCOM with BO that adjusts for DVR [55] Power quality issue mitigation Vehicle-grid (V2G) grid-vehicle (G2V) analysis of current power quality problems and possible solutions [56] Hybrid active power filter (HAPF) SRF theory P-Q theory SVPWM HAPF is designed so that the VA rating of the active filter goes down while the filtering efficiency of the passive filter goes up [57] Power quality Harmonic elimination…”

An improved modulation technique suitable for a three level flying capacitor multilevel inverter

“…Various types of multilevel inverters find applications in the energy sector, including cascaded H-bridge, neutral point clamped, and flying capacitor configurations [19]. In solar PV systems, a three-phase multilevel inverter is employed alongside a brushless motor and a tracking system.…”