Experimental verification for improved phase‐disposition PWM of three‐phase five‐level diode‐clamped inverter

Suleiman, M.S.; Elnady, A.; Osman, Ahmed

doi:10.1002/cta.2963

Cited by 8 publications

(3 citation statements)

References 21 publications

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“…The adopted switching modulation is phase-disposition pulse-width modulation (PD-PWM), which perfectly fits the operation of this five-level inverter. The detailed operation and structure of the inverter topology as well as its switching modulation, operability, and control are detailed in [23].…”

Section: Model Of Dgsmentioning

confidence: 99%

Improved Synergetic Current Control for Grid-connected Microgrids and Distributed Generation Systems

Elnady

Noureldin

Adam

2022

Journal of Modern Power Systems and Clean Energy

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This paper presents the development of improved synergetic current control for the injected current of an inverter in the grid-connected microgrid and the distributed generation system (DGS). This paper introduces new formulas of the macro-variable functions for integral synergetic control (SC) and integral fast terminal SC, which both have an integral term to guarantee zero steady-state error. The proposed integral SC and integral fast terminal SC achieve a seamless performance such as the fast convergence, minimal overshoot, zero steady-state error, and chattering-free operation. To demonstrate the meritorious performance of the proposed scheme for injected current control, it is compared with the performance of a proportional-integral (PI) controller and advanced exponential sliding mode control (SMC). Finally, the practicality of the proposed scheme is justified by experimental results obtained through rapid control prototyping (RCP) using the dSPACE-SCALEXIO platform.Index Terms--Integral synergetic control (SC), current control, integral fast terminal SC, advanced exponential sliding mode control (SMC), proportional-integral (PI) control, microgrid, distributed generation system (DGS).

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Section: Model Of Dgsmentioning

confidence: 99%

Improved Synergetic Current Control for Grid-connected Microgrids and Distributed Generation Systems

Elnady

Noureldin

Adam

2022

Journal of Modern Power Systems and Clean Energy

Self Cite

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“…Some of the high switching frequency modulation techniques are the sinusoidal PWM (SPWM) technique, space vector PWM (SVPWM), and so on. 22,23 With the low switching frequency modulation technique, the number of switching transitions is low, which reduces the switching losses. The low switching frequency modulation technique is suitable for a higher number of levels.…”

Section: N DC M+2mentioning

confidence: 99%

Analysis and implementation of a new asymmetric double H‐bridge multilevel inverter

Siddique

Iqbal

Sarwar

et al. 2021

Circuit Theory & Apps

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Multilevel inverters (MLI) have become an integral component in many industrial applications including drive systems and distributed generation grid integrated systems. Efficient and cost-effective MLI topologies are required to enhance the performance of industrial systems. In the present work, an asymmetric double H-bridge MLI is proposed, which incorporates and enhances the attributes of a modified T-type converter and produces a superior output voltage waveform with the lesser component requirement. The proposed MLI can generate a 15-level output. An extendable generalized topology (cascaded) based on the proposed configuration has also been proposed. The topology is compared with recently introduced MLI topologies based on various performance parameters, and results are presented. The output voltage control is achieved using nearest level control which is a low switching frequency modulation technique for lowering the switching losses in the inverter. The hardware is realized, and performance is evaluated under different dynamically changing loading conditions.

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“…The generalized circuit has been given in the presented work to achieve more levels. Some more MLI topologies having less number of overall components are discussed in previous works 14–26 …”

Section: Introductionmentioning

confidence: 99%

Operation, analysis, and implementation of a reduced device count asymmetrical multilevel inverter

Sarwer

Sharma

Zaid

et al. 2021

Circuit Theory & Apps

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An asymmetrically structured multilevel inverter (MLI) having reduced device count feature is discussed in this paper. The proposed converter can successfully produce 21 levels in its output voltage waveform. The basic module of the proposed MLI has 10 unidirectional and 2 bidirectional switches along with 4 dc sources. However, the possibility of the extension in the basic structure has also been discussed with the aim to increase the number of levels. The analysis includes the simulation performed for different conditions and the thermal modeling of the circuit, using PLECS software, for finding the power losses. For generating the switching signals, nearest level control (NLC) has been used as the pulse width modulation method. With the help of a laboratory prototype, the experimental implementation of the proposed topology has been done and the various outcomes conform the simulation results. All the simulations and the experimental results have been presented and explained in the work. The harmonic analysis shows that the total harmonic distortion (THD) in the output voltage is 3.5%.

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Experimental verification for improved phase‐disposition PWM of three‐phase five‐level diode‐clamped inverter

Cited by 8 publications

References 21 publications

Improved Synergetic Current Control for Grid-connected Microgrids and Distributed Generation Systems

Improved Synergetic Current Control for Grid-connected Microgrids and Distributed Generation Systems

Analysis and implementation of a new asymmetric double H‐bridge multilevel inverter

Operation, analysis, and implementation of a reduced device count asymmetrical multilevel inverter

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