Single-phase fifteen-level grid-connected inverter for photovoltaic system with evolutionary programming based MPPT algorithm

Kaliamoorthy, M.; Rajasekaran, V.; Raj, I. Gerald Christopher

doi:10.1016/j.solener.2014.03.031

Cited by 24 publications

(12 citation statements)

References 29 publications

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“…The boost converter increases input DC voltage level, which is based on the gating pulse given to the power MOSFET and time duration of gating pulses desired by duty ratio of switch. The duty ratio of the switch is not a fixed and it will change automatically during the tracking process [12]. The Power MOSFET is a high frequency switching device and it operates at higher frequency ranges of 10 kHz.…”

Section: Photovoltaic System Designmentioning

confidence: 99%

Comparative Study of Three Phase Grid Connected Photovoltaic Inverter Using PI and Fuzzy Logic Controller with Switching Losses Calculation

Venkatesan¹,

Rajeshwari²,

Deverajan³

et al. 2016

IJPEDS

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A comparative study of three phase grid connected photovoltaic (PV) inverter using Proportional-Integral (PI) controller and Fuzzy logic controller (FLC) is presented in this paper. Proposed three phase inverter with single DC source employing three phase transformer for grid connected PV system controlled by using space vector pulse width modulation (SVPWM) technique. PI and FLC are used as current controller for regulating the current. Perturb and observe maximum power point technique (MPPT) is used for tracking of maximum power from the PV panel. Finally total harmonic distortion (THD) comparison made between two controllers for validation of results. Furthermore swithing losses of inverter are also presented. The simulation results are obtained using MATLAB simulink. Keyword:Fuzzy INTRODUCTIONIn the modern scientific world ruled by science, the utilizing of electricity has increased rapidly due to growing of population of the world. Nowadays, most of the research works have focused on PV based power generation due to major reasons such as price of fossil fuel, green house effect and energy available in nature [1]. Actually, solar panel is directly converting solar irradiation in to electrical energy [2]. It is necessary to convert available DC voltage into AC voltage and the converted AC voltage should be sinusoidal with high quality output voltage. For this purpose, multilevel inverter (MLI) is the most suitable choice for converting DC into AC compared to the conventional two level inverters with minimum THD values. MLI's broadly categorised into three main types namely, diode clamped, flying capacitor and cascade [3]- [4]. Three phase MLI inverter using cascaded H-Bridge with independent DC source is presented in the literature review [5]. The above topology, each H bridge require separate DC sources with equal rating and separate DC sources make it system bulky and costlier [6]. Cascade H bridge inverter employing single phase and three phase transformers with single DC input is also presented [7]. This configuration use single DC input and require additional single and three phase transformers for higher voltage level. In accordance with the observation from the references [5]- [7], inverter topology requires more DC input, transformers and switches which result in increased complexity, system size and cost. For maintain grid current as pure sinusodial Proportional-Integral (PI) controller and FLC controllers are used as feedback controller. The PI is maynot satisfactory in controlling various non linear control applications. Moreover the design of its control system is

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Section: Photovoltaic System Designmentioning

confidence: 99%

Comparative Study of Three Phase Grid Connected Photovoltaic Inverter Using PI and Fuzzy Logic Controller with Switching Losses Calculation

Venkatesan¹,

Rajeshwari²,

Deverajan³

et al. 2016

IJPEDS

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“…Generally, industrial MLIs were classed into three topologies: Cascaded H‐bridge (CHBMLI) with separate DC sources, 6,7 Neutral Point Clamped, 8‐13 and the Flying Capacitors 14‐18 . Of the three types, the CHBMLI is the most common industrial topology due to its high reliability, modular operation, high‐voltage and power applications (ie, 13.8 kV, 30 MVA) 11,19 . Infinite output voltage levels can be theoretically synthesized from each of the aforementioned topologies, which requires a large number of isolated DC sources and switching devices 17,18 .…”

Section: Introductionmentioning

confidence: 99%

A single‐phase modular multilevel inverter based on controlled DC‐cells under two SPWM techniques for renewable energy applications

Ali

Sayed

Takeshita

et al. 2020

Int Trans Electr Energ Syst

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“…To increase the efficiency of the grid connected renewable energy systems single stage boost inverters are proposed in the literature [1]- [4]. Single stage power conversion technique reduces the losses, thereby increasing the efficiency, but it suffers from drawbacks like poor Total Harmonic Distortion (THD) at the output voltage which eventually increases the filter size, thereby increasing the cost and size of the total system [6].…”

Section: Introductionmentioning

confidence: 99%

“…To improve the harmonic profile of the output voltage of the inverter Multilevel Inverters (MLIs) are suggested in [1]- [5]. MLIs have nearly sinusoidal output voltage and current waveforms with improved harmonic profile, less stress in power electronic switches due to reduced voltages, lower switching losses when compared to conventional three-level inverters, smaller filter size and reduced electromagnetic interference [6]. In recent years various MLIs are proposed in the literature.…”

Section: Introductionmentioning

confidence: 99%

A Novel Asymmetrical Single-Phase Multilevel Inverter Suitable for Hybrid Renewable Energy Sources

P¹,

Kaliamoorthy²

2016

Self Cite

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This paper introduces a novel single-phase asymmetrical multilevel inverter suitable for hybrid renewable energy sources. The proposed inverter consists of two isolated DC sources and six power semiconductor controlled switches. The suggested inverter is capable of generating sevenlevel output when the input DC voltage is taken in the ratio of 1:2. The higher magnitude DC source is fed from Photo Voltaic (PV) panels, whereas the lower magnitude DC source is fed from Wind Turbine (WT) driven Permanent Magnet DC (PMDC) generator. Both the renewable energy sources are connected to the inverter via two DC-DC boost converters connected in cascade (i.e. one for maximum power point tracking and another for DC-link voltage control). The proposed hybrid renewable energy source inverter is connected to single-phase grid via proper control systems. The complete system is simulated using MATLAB/SIMULINK and the results are presented in detail.

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Single-phase fifteen-level grid-connected inverter for photovoltaic system with evolutionary programming based MPPT algorithm

Cited by 24 publications

References 29 publications

Comparative Study of Three Phase Grid Connected Photovoltaic Inverter Using PI and Fuzzy Logic Controller with Switching Losses Calculation

Comparative Study of Three Phase Grid Connected Photovoltaic Inverter Using PI and Fuzzy Logic Controller with Switching Losses Calculation

A single‐phase modular multilevel inverter based on controlled DC‐cells under two SPWM techniques for renewable energy applications

A Novel Asymmetrical Single-Phase Multilevel Inverter Suitable for Hybrid Renewable Energy Sources

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