Performance evaluation of an asymmetrical reduced switched multi‐level inverter for a grid‐connected PV system

Das, Madan Kumar; Jana, Kartick Chandra; Sinha, Akanksha

doi:10.1049/iet-rpg.2016.0895

Cited by 74 publications

(37 citation statements)

References 39 publications

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“…The factor 1.1 is considered to account voltage drops at various parts of the SECS as well as to maintain, V ao to be higher than V sa . The output voltage across the n th secondary winding of SIMO-SEPIC V n is derived as [8], (18) where, N p is the primary and N sn is the n th secondary turns of multi winding transformer. Individual DC-link voltages generated by SIMO-SEPIC at the out terminals are derived from (18) as,…”

Section: Secs Designmentioning

confidence: 99%

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Binary Hybrid Multilevel Inverter-Based Grid Integrated Solar Energy Conversion System With Damped SOGI Control

et al. 2020

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This paper presents a binary hybrid multilevel inverter (BHMLI) based grid-connected solar energy conversion system (SECS), controlled by damped second-order generalized integral (DSOGI). The BHMLI architect has a cascaded half-bridge array, which modifies the DC-link of the H-bridge of the voltage source inverter, and results in approximate reference waveform. It reduces the dV/dt of the H-bridge switches and improves output waveform quality. The DSOGI control damps the oscillations and overshoots and provides longer service period of low power switches at transient conditions. It is implemented in the multilevel inverter application for the first time in literature. The SECS is designed to inject active power to the grid, and also mitigates the harmonic and reactive power demands of the load. The cascading of 'n' half-bridges and one H-bridge generate (2 (nC1) − 1) output voltage levels. The maximum power extraction from solar photovoltaic (PV) array is achieved through incremental conductance (IC) algorithm based maximum point tracking (MPPT) operation of the DC-DC converter. An isolated single-input multipleoutput single-ended primary inductance converter (SIMO-SEPIC) realizes it. SECS with 15-level BHMLI is analyzed with extensive simulation as well as with a hardware prototype. Moreover, the shunt active filter functionality of the system at various load conditions are verified and maintained the grid power quality within the IEEE-519 standard throughout the operation. The laboratory developed setup is tested for 5 kW, 400 V, three-phase system, and the experimental analysis at steady-state and dynamic variations of load-side and insolation variations validate the theoretical claims. INDEX TERMS Multilevel inverter, SIMO-SEPIC, solar PV, power quality.

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Section: Secs Designmentioning

confidence: 99%

“…A modular multilevel single-delta bridge-cell inverter is reported in [17] intended for utility-scale PV systems. An asymmetrical cascaded MLI with individual DC-DC converters fed from asymmetric power PV panels is published in [18]. The separate maximum power point tracking (MPPT) algorithms are implemented for different panels.…”

Section: Introductionmentioning

confidence: 99%

Binary Hybrid Multilevel Inverter-Based Grid Integrated Solar Energy Conversion System With Damped SOGI Control

et al. 2020

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“…Power loss of the proposed multilevel inverter (MLI) is used to find the efficiency of the inverter by computing the conduction losses and the switching losses for the proposed nine‐level inverter.…”

Section: Efficiency Of the Proposed Invertermentioning

confidence: 99%

“…The average conduction losses for one cycle can be calculated by observing the operating time (ON/OFF time) of the different power switches from a simulated pulse pattern of the proposed inverter. The calculations can be carried out as discussed in Das et al…”

Section: Efficiency Of the Proposed Invertermentioning

confidence: 99%

A new and generalized structure of single‐phase and three‐phase cascaded multilevel inverter with reduced power components

Mahato

Majumdar

Jana

2019

Int Trans Electr Energ Syst

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Summary The proposed work shows a novel multilevel inverter (MLI) configuration to generate a large number of voltage levels with lesser number of power switches. The proposed generalized inverter comprises basic cells cascaded to each other. Each cell of the proposed inverter can generate three‐level AC voltage using the power switches of the same rating. Both single‐phase and three‐phase MLI configurations are possible for the proposed structure. To validate the performance of the proposed MLI configuration, a nine‐level inverter using six power switches and a 27‐level inverter using nine power switches are designed and simulated in the MATLAB/Simulink environment. An experimental prototype is developed in the laboratory, and the experimental results are presented to verify the simulated results. Further, to validate the effectiveness of the proposed multilevel inverter, a comparison of the proposed MLI with recently proposed multilevel inverter has been incorporated in a detailed manner.

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“…Grid tied inverter is different from a traditional inverter which is available. The following requirements are a must and need to be fulfilled before getting connected with the grid [8][9][10][11]. Inverter output voltage magnitude must be same as functioning grid voltage, phase and phase sequence of inverter output must be same as functioning grid phase and phase sequence, the inverter output frequency must be same as functioning grid frequency which is shown in Fig 1 shown Table 2, Normal Operating Cell Temperature (NOCT) as shown in Table 3…”

Section: Introductionmentioning

confidence: 99%

Design Approach of Grid Coupled Solar Inverter

et al. 2018

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In novel times, more demands are gained by grid connected solar inverters along with the upgrading of the solar energy generation. In grid connected solar power generation, if there is increase in placing more number of solar inverters it may result in effecting the power quality issues. Solar Grid Tied Inverter system is a electrical power generating system that is coupled to the functioning power grid. This power generating system unit consists of elements like Photovoltaic array, DC to DC converter, DC to AC converter, single phase/three phase converter, and AC Source. The inverter converts DC power generated by the array of photovoltaic cells into AC power and this generated AC power is fed to the connected AC loads. If the amount power generation is exceeding the power demanded, excess AC power is supplied to the grid. With this novel approach we can minimize the use of the AC power from the power grid and also even make a generation to the power grid and this is measured with help of net metering. In this paper designing of 281.6Kw grid tied solar power generation and technical specifications required for them are proposed.

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Performance evaluation of an asymmetrical reduced switched multi‐level inverter for a grid‐connected PV system

Cited by 74 publications

References 39 publications

Binary Hybrid Multilevel Inverter-Based Grid Integrated Solar Energy Conversion System With Damped SOGI Control

Binary Hybrid Multilevel Inverter-Based Grid Integrated Solar Energy Conversion System With Damped SOGI Control

A new and generalized structure of single‐phase and three‐phase cascaded multilevel inverter with reduced power components

Design Approach of Grid Coupled Solar Inverter

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