Modeling and control strategy of three phase neutral point clamped multilevel PV inverter connected to the grid

Arulkumar, K.; Vijayakumar, D.; Palanisamy, K.

doi:10.1016/j.jobe.2015.06.001

Cited by 21 publications

(13 citation statements)

References 34 publications

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“…The simulation results showed that the inverter current distortion was 0.72%. Arulkumar et al [70] modelled and designed an NPC inverter for grid-tied photovoltaic inverters. The system achieved a current THD of 3%.…”

Section: Discussionmentioning

confidence: 99%

A Grid-Tied Fuel Cell Multilevel Inverter with Low Harmonic Distortions

2021

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As a result of global energy demand increase, concerns over global warming, and rapid exhaustion of fossil fuels, there is a growing interest in energy system dependence on clean and sustainable energy resources. Attractive power technologies include photovoltaic panels, wind turbines, and biomass power. Fuel cells are also clean energy units that substitute power generators based on fossil fuels. They are employed in various applications, including transportation, stationary power, and small portable power. Fuel cell connections to utility grids require that the power conditioning units, interfacing the fuel cells and the grids, operate accordingly (by complying with the grid requirements). This study aims to model a centralised, single-stage grid-tied three-level diode clamped inverter interfacing a multi-stack fuel cell system. The inverter is expected to produce harmonic distortions of less than 0.5% and achieve an efficiency of 85%. Besides the grid, the system consists of a 1.54 MW/1400 V DC proton exchange membrane fuel cell, a 1.3 MW three-level diode clamped inverter with a nominal voltage of 600 V, and an inductance-capacitance-inductance (LCL) filter. Two case studies based on the load conditions are considered to assess the developed system’s performance further. In case 1, the fuel cell system generates enough power to fully meet this load and exports the excess to the grid. In the other case, a load of 2.5 MW was connected at the grid-tied fuel cell inverter’s output terminals. The system imports the grid’s power to meet the 2.5 MW load since the fuel cell can only produce 1.54 MW. It is demonstrated that the system can supply and also receive power from the grid. The results show the developed system’s good performance with a low total harmonic distortion of about 0.12% for the voltage and 0.07% for the current. The results also reveal that the fuel cell inverter voltage and the frequency at the point of common coupling comply with the grid requirements.

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Section: Discussionmentioning

confidence: 99%

A Grid-Tied Fuel Cell Multilevel Inverter with Low Harmonic Distortions

2021

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“…This topology Figure 7(a) was first presented by [13] [14]; its main function is to use locking diodes to synthesize a sine wave from several voltage levels, typically obtained from capacitors that work as DC sources. The capacitors used are connected in series to divide the voltage.…”

Section: The Diode Clamped Multilevel Inverter (Dcmli)mentioning

confidence: 99%

Efficient Choice of a Multilevel Inverter for Integration on a Hybrid Wind-Solar Power Station

Khalili¹,

Raihani²,

Ouajji³

et al. 2015

JPEE

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DC/AC converters are very important components that have to be chosen efficiently for each type of power station. In this article, we present in details, a comparison between three different architectures of multilevel inverters, the flying capacitor multilevel inverter (FCMLI), the diode clamped multilevel inverter (DCMLI), and the cascaded H-bridge multilevel inverter (CHMLI). Thus the comparison is focused on the output voltage quality, the complexity of the power circuits, the cost of implementation, and the influence on a power bank inside the renewable power station. We also investigate trough simulation the efficient number of levels and suitable characteristics for the CHMLI that showed the most promising performance. The study uses Matlab Simulink platform as a tool of simulation, and aim to choose the most qualified inverter, for a potential insertion on a hybrid renewable energy platform (wind-solar). In all the simulations we use the same PWM control type (SPWM).

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“…Global interest in clean and renewable energy sources (RESs) has been growing exponentially. Solar energy is gaining in importance as a renewable source due to advantages such as low maintenance, no noise, no fuel cost, and low wear and tear due to the absence of moving parts [1][2][3][4][5][6]. The energy conversion efficiency of a PV array is low and varies with solar intensity and operating temperature [7].…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Control for PV Integrated Battery Energy Storage System with Enhanced Power Quality

Mohan¹,

Gurucharan²,

Reddy³

et al. 2023

IJRASET

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This modest paper presents a study on the energy quality produced by a multifunction system consisting of a Photovoltaic (PV) power source connected to a battery. A three-level inverter was used in the system studied for the purpose of improving the quality of energy injected into the grid and decreasing the Total Harmonic Distortion (THD). A Maximum Power Point Tracking (MPPT) algorithm based on a Fuzzy Logic Controller (FLC) is used for the purpose of ensuring optimal production of photovoltaic energy. In addition, another FLC controller is used to ensure DC bus stabilization. The considered system was implemented in the Matlab/Simpower environment. The results show the effectiveness of the proposed inverter at three levels in improving the quality of energy injected from the system into the grid.

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Modeling and control strategy of three phase neutral point clamped multilevel PV inverter connected to the grid

Cited by 21 publications

References 34 publications

A Grid-Tied Fuel Cell Multilevel Inverter with Low Harmonic Distortions

A Grid-Tied Fuel Cell Multilevel Inverter with Low Harmonic Distortions

Efficient Choice of a Multilevel Inverter for Integration on a Hybrid Wind-Solar Power Station

Multifunctional Control for PV Integrated Battery Energy Storage System with Enhanced Power Quality

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