Harmonic elimination of cascaded H-bridge multilevel inverter based active power filter controlled by intelligent techniques

Rao, G. Nageswara; Raju, P. Sangameswara; Sekhar, K. Chandra

doi:10.1016/j.ijepes.2014.02.023

Cited by 39 publications

(7 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fourier transform technique is utilized for the output voltage of the MLI, which is having symmetry in odd quarter-wave [37], [38]. The MLI Fourier series expression is expressed as (10).…”

Section: Harmonics Reduction Methods and Fourier Transformmentioning

confidence: 99%

“…An excellent experience presentation and reasoning skills of fuzzy sense that possess the abilities to change over the starring position of the association to accomplish the desired output [48]. An adaptive network is based on the FIS that combines practically all the types of neural network simulations [37]. ANFIS is a hybrid soft computing model composed of a neuro-fuzzy system in which a fuzzy inference system can be trained by a neural network learning algorithm.…”

Section: B Anfis Controllermentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Fuzzy and ANFIS Controllers for Asymmetrical 31-Level Cascaded Inverter With Super Imposed Carrier PWM Technique

Muralikumar

Ponnambalam

2021

IEEE Access

View full text Add to dashboard Cite

The modified topology for an asymmetrical 31-level cascaded inverter is analyzed with less number of DC voltage sources, power diodes, and power electronic knobs. The Super Imposed Carrier Pulse Width Modulation (SIC-PWM) is proposed for a 31-level asymmetrical modified cascaded inverter topology to reduce the Total Harmonic Distortions (THD). The Fuzzy logic controller (FLC) and Adaptive Neuro-Fuzzy Inference System (ANFIS) are suggested for a 31-level asymmetrical modified cascaded inverter topology to control the root mean square (RMS) voltage. These controllers help in maintaining the output voltage constant even when there is a change in input voltage to the inverter. This study aims to compare Fuzzy logic and ANFIS controllers by applying them to the 31-level cascaded inverter. Using both the controllers the inverter is controlled and its performance is compared using a step response tool in MATLAB. The study of the proposed modified 31-level Asymmetrical cascaded inverter is carried out to evaluate the THD without and with Fuzzy logic and ANFIS controller. Using the step response tool, Settling Time, Overshoot, RMS Voltage values, Peak Time, Peak value, and Rise Time were evaluated and compared for Fuzzy and ANFIS controlled 31-level asymmetrical cascaded inverter. The THD value for without a controller is 4.97%, with the fuzzy logic controller is 4.15% and with ANFIS controller is 3.77%. In both MatLab and real-time simulation, total harmonic distortion (THD) is observed to be the almost same and is lower than 5% which is under IEEE standards. The performance of Fuzzy and ANFIS controlled 31-level asymmetrical cascaded inverter is evaluated and compared with the use of MATLAB/Simulink and the same is done with Real-Time simulation using OPAL-RT 5700.

show abstract

“…Fourier transform technique is utilized for the output voltage of the MLI, which is having symmetry in odd quarter-wave [37], [38]. The MLI Fourier series expression is expressed as (10).…”

Section: Harmonics Reduction Methods and Fourier Transformmentioning

confidence: 99%

Section: B Anfis Controllermentioning

confidence: 99%

Comparison of Fuzzy and ANFIS Controllers for Asymmetrical 31-Level Cascaded Inverter With Super Imposed Carrier PWM Technique

Muralikumar

Ponnambalam

2021

IEEE Access

View full text Add to dashboard Cite

show abstract

“…In recent years, with the large-scale deployment of distributed generation, as an energy conversion interface between distributed energy and power grid or AC load, the DC-AC link of distributed generation has attracted extensive attention [1]- [2]. Due to the low total standing voltage (TSV), low total harmonic 1 distortion (THD) and effective reduction of electromagnetic interference, multilevel inverters have become one of the preferred circuit configurations for high efficiency in the DC-AC link [3]. There are many traditional multilevel inverters such as neutral point clamped (NPC) multilevel inverter [4], flying capacitor (FC) multilevel inverter [5], and cascaded H-bridge (CHB) multilevel inverter [6].…”

Section: Introductionmentioning

confidence: 99%

A single-input extended multilevel inverter based on switched-capacitor with reduced number of devices

Wang

et al. 2022

International Journal of Electrical Power & Energy Systems

View full text Add to dashboard Cite

“…Reducing electricity consumption at the grid, particularly at the distribution level, relieving the transformer from excess loading, can solve the issue (Elphick et al 2015). With a fixed capacitor or reactor compensation, the power factor can go leading or lagging compensation does not give full benefits to the consumer in a desirable manner as the load changes continuously (Rao et al 2014; Fig. 1 Reactive power variations of system under consideration 2018b).…”

Section: Introductionmentioning

confidence: 99%

Fuzzy-Based Optimization of Static Var Compensator–Injected Harmonics and System Currents of an Unbalanced Distribution Network

Bagwan

Korachagaon

Mulla

2021

Process Integr Optim Sustain

View full text Add to dashboard Cite

In power distribution network, more and more people are worried about equipment failures and malfunctions caused by fluctuating loads and system harmonics due to poor power quality. The presence of harmonics can shorten the equipment's service life. There is a strong link between the energy use and the environment. Major part of power demand is supplied from thermal power stations which produce more carbon emissions as the power plant uses more fuel to generate the electricity. The effective utilization of transformer capacity is achieved by minimizing system losses and improving voltage regulation in the distribution system. Many techniques are used to address this issue, ranging from several power factor correction systems to passive and active harmonic filtering. Although distribution static compensator (DSTATCOM) is a perfect solution to solve this problem, they are expensive and have more complexity as a view against static var compensators (SVCs). This study aims to provide optimal approach for SVC switching in unbalanced operation of the distribution networks. In present work, the SVC is arranged in thyristor binary switched capacitors (TBSC)-thyristor-controlled reactor (TCR) configuration. The capacitor banks are set in binary sequence, and the optimal size reactor is decided. The TCR in SVC inherently generates the harmonics. The fuzzy logic approach is used to solve this non-linearity by determining the optimal triggering delay angle of the thyristor in TCR. This results in significant reduction in harmonics injected by the SVC. The strategy is appealing to improve efficiency of power distribution networks and thereby save natural resources required to generate electricity from thermal power stations.

show abstract

Harmonic elimination of cascaded H-bridge multilevel inverter based active power filter controlled by intelligent techniques

Cited by 39 publications

References 13 publications

Comparison of Fuzzy and ANFIS Controllers for Asymmetrical 31-Level Cascaded Inverter With Super Imposed Carrier PWM Technique

Comparison of Fuzzy and ANFIS Controllers for Asymmetrical 31-Level Cascaded Inverter With Super Imposed Carrier PWM Technique

A single-input extended multilevel inverter based on switched-capacitor with reduced number of devices

Fuzzy-Based Optimization of Static Var Compensator–Injected Harmonics and System Currents of an Unbalanced Distribution Network

Contact Info

Product

Resources

About