A review on multilevel inverter with reduced switch count

Vijayaraja, L.; Kumar, S. Ganesh; Rivera, Marco

doi:10.1109/ica-acca.2016.7778467

Cited by 21 publications

(9 citation statements)

References 32 publications

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“…To ease the penetration of large-scale PV systems, reducing the switch count of the MMI topologies is necessary, in the future, to simplify control systems, reduce operational cost, and reducing their environmental footprint [144]. MMIs based on CHBs are suitable candidates for such integration, since they offer increased power quality as well as the ability to handle higher power and voltage ratings [22,61].…”

Section: The Future Of Large-scale Pv Systemsmentioning

confidence: 99%

“…Moreover, the efficiency of MPPT control is influenced by several factors, such as a PV system's nonlinear structure, shading conditions, and variations in ambient conditions. Most control developers ignore these changes, which has resulted in system failure in several situations [107,144]. MPPTcontroller design is a crucial challenge for the penetration of large-scale PV systems in MV networks and requires further consideration regarding the maintenance of stability, especially with increasing output power and the necessity of multi-layer hierarchal MPPT control systems [54,62].…”

Section: The Future Of Large-scale Pv Systemsmentioning

confidence: 99%

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Modular Multilevel Converters for Large-Scale Grid-Connected Photovoltaic Systems: A Review

Alotaibi

Darwish

2021

Energies

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The use of photovoltaic (PV) systems as the energy source of electrical distributed generators (DG) is gaining popularity, due to the progress of power electronics devices and technologies. Large-scale solar PV power plants are becoming the preferable solution to meet the fast growth of electrical energy demand, as they can be installed in less than one year, as compared to around four years in the case of conventional power plants. Modular multilevel inverters (MMIs) are the best solution to connect these large-scale PV plants to the medium-voltage (MV) grid, due to their numerous merits, such as providing better power quality, having higher efficiency, providing better reliability, and their scalability. However, MMIs are still progressing and need some improvement before they can be implemented safely in the industrial, medium, and high voltage networks. The main purpose of this paper is to review the present MMIs topologies when used in PV applications. The review aims to present a comprehensive study of the various recent submodule circuits associated with MMI topologies. Maximum power point tracking (MPPT) control schemes for PV inverters will be explored extensively. Then, the different control strategies of PV MMIs will be presented and compared to give a holistic overview of the submodules balancing techniques, ranges, and capabilities under balanced and unbalanced grid conditions. In addition, the paper will discuss the future of PV MMIs systems in electricity networks.

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Section: The Future Of Large-scale Pv Systemsmentioning

confidence: 99%

Section: The Future Of Large-scale Pv Systemsmentioning

confidence: 99%

Modular Multilevel Converters for Large-Scale Grid-Connected Photovoltaic Systems: A Review

Alotaibi

Darwish

2021

Energies

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“…In [4], various configurations of MLI's were analyzed in terms of number of switching devices and modulation techniques. MLI are broadly classified into cascaded H Bridge, neutral clamped and flying capacitor topologies [5].…”

Section: Introductionmentioning

confidence: 99%

Trends and Challenges in Multi-Level Inverter with Reduced Switches

et al. 2021

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Multilevel inverter had been paid a lot of attention from the academia and research community in recent times due to its role in high and medium power applications. In this paper, a detailed survey is made on the recently designed multilevel inverter to find the suitability of the inverters for particular applications. Research is performed on various types of multilevel inverters such as: Symmetric, asymmetric, hybrid and modularized multilevel inverter in order to identify the issues in generating more levels at the output. A summary of various issues in multilevel inverter with reduced switch count is provided, so that a novel topology of multilevel inverter can be designed in future. Further, an 81-level switched ladder multilevel inverter using unidirectional and bidirectional switches is designed. Simulation work is carried out using Matlab/Simulink in order to validate the performance of the inverter with change in resistive load and impedance load. The output of the 81-level inverter is fed to a 110 V, 186.5 W single phase induction motor in order to study the characteristics, further speed control of motor is performed by varying the input voltage of the motor and the results are presented.

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“…With fewer components, this MLI plays a vital role in applications such as electric vehicles, renewable energy systems, and High Voltage Direct Current (HVDC) [1][2][3][4]. A complete review of MLI with fewer components is done in Reference [5,6]. Moreover, new topologies of inverters were investigated in References [7,8] to reduce the harmonic contents.…”

Section: Introductionmentioning

confidence: 99%

Realization of 485 Level Inverter Using Tri-State Architecture for Renewable Energy Systems

2020

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In this paper, a ‘k’-state inverter producing a higher number of voltage levels was designed, and we studied the inverter’s working. Further, a tri-state inverter was derived from the ‘k’-state inverter, which could build a maximum number of output voltage levels with the requirement of fewer components, thereby reducing the cost and size. A single Tri-state architecture generates three direct current (D.C.) voltage levels; therefore, cascading five tri-state architectures can generate 242 levels of DC voltages. Further, the inversion is done via the H bridge, which leads to 485 levels of the output voltage. Algorithms to design the amplitude of voltage sources and the generation of pulses are discussed in this paper. The proposed tri-state inverter takes a significant role in advancing renewable energy systems in utilizing inverter technology. A simulation study validated the operation of the proposed inverter. Moreover, an experimental setup was built for a single-phase 485-level inverter, and the structure’s performance was verified through the experimental results.

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A review on multilevel inverter with reduced switch count

Cited by 21 publications

References 32 publications

Modular Multilevel Converters for Large-Scale Grid-Connected Photovoltaic Systems: A Review

Modular Multilevel Converters for Large-Scale Grid-Connected Photovoltaic Systems: A Review

Trends and Challenges in Multi-Level Inverter with Reduced Switches

Realization of 485 Level Inverter Using Tri-State Architecture for Renewable Energy Systems

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