Fractional Order Sliding Mode Control for Voltage Source Voltage Converters Under Reconfiguration

Ahmed, Toqeer; Waqar, Asad; Hussain, Tanveer; Al‐Ammar, Essam A.; Zahid, Muhammad; Habib, Habib Ur Rahman

doi:10.1109/raeecs50817.2020.9265817

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…It is noted that the PSO eliminated 5th and 7th order harmonic utterly compare to other algorithms. The THD value of PSO, GA, and BA are computed as 12.56%, 13.03%, and 12% respectively employing (5) [33]…”

Section: Resultsmentioning

confidence: 99%

Selective Harmonics Elimination in Multilevel Inverter Using Bio-Inspired Intelligent Algorithms

Shahbaz

Ahmed

Elavarasan³

et al. 2021

2021 31st Australasian Universities Power Engineering Conference (AUPEC)

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Multilevel inverters are powerful electronic devices that are used for the conversion of DC input voltage into AC output voltage and mostly used in medium and high voltage operations. In these operations, pulse width modulation (PWM) frequency is distorted because of electromagnetic interference (EMI) and switching losses which are caused by dv/dt stress. To achieve a pure sinusoidal waveform at output of multilevel inverter is a primary purpose so that a smaller number of harmonic contents are produced. Selective harmonic elimination PWM technique is used in cascaded multilevel inverter for the mitigation of lower harmonics by solving nonlinear transcendental equations and maintains the required fundamental voltage. An objective function is derived from SHE problem to calculate switching angles. For the solution of objective function, optimization approach such as bio-inspired intelligent algorithms are used. In this paper, Genetic Algorithm (GA), Particle Swarm Optimization (PSO) and Bee Algorithm (BA) are used to determine the optimum switching angles for cascaded multilevel inverters to get low total harmonic distortion (THD) in output voltage. These computed angles are analyzed in MATLAB simulation model to authenticate the results. And there will be direct comparison among these algorithms.

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Section: Resultsmentioning

confidence: 99%

Selective Harmonics Elimination in Multilevel Inverter Using Bio-Inspired Intelligent Algorithms

Shahbaz

Ahmed

Elavarasan³

et al. 2021

2021 31st Australasian Universities Power Engineering Conference (AUPEC)

Self Cite

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“…Before going on to the practical implementation of the PV charge controller, the design is verified through the MATLAB/Simulink environment. The MATLAB simulation provided a better understanding of the working of a PV charge controller [30]. The overall operation and specifically the tracking of the maximum power point using the incremental conductance algorithm is visualized through MATLAB simulation.…”

Section: A Matlab Simulationmentioning

confidence: 99%

Design and Implementation of PV Fed Local UPS Inverter

Ahmed

Khan

Waqar

et al. 2021

PakJET

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Locally manufactured Uninterruptible Power Supply (UPS) units are purchased as an alternative to rolling blackouts and load shedding in underdeveloped and developing countries like Pakistan. These locally manufactured UPS units are energy-inefficient, causing stress on the national grid and cost-intensive for the residential consumer in the form of high utility bills of electricity. In this regard, the authors have proposed the PV fed local UPS inverter to make the existing UPS unit more efficient through photovoltaic (PV) energy without disrupting its function of providing uninterrupted supply during load-shedding hours. In order to validate the performance of the proposed PV fed local UPS inverter, the maximum power point tracking (MPPT) PV charge controller module is designed and implemented practically in a hardware setup and simulated in MATLAB/Simulink and Proteus environment, respectively. Moreover, the installation of an MPPT PV charge controller module in an existing locally manufactured UPS unit is also discussed. The practical results demonstrate the superiority of the proposed PV fed local UPS inverter with an average efficiency of 81.51% and a lowest total harmonic distortion (THD) of 1.29% as compared to existing UPS inverters.

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