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Journal ArticleDOI

Investigation of Standalone Solar Photovoltaic Water Pumping System With Reduced Switch Multilevel Inverter

21 Feb 2020-Frontiers in Energy Research (Frontiers Media SA)-Vol. 8
TL;DR: An innovative seven-level inverter with five power semiconductor switches for the operation of 0.5 HP single-phase induction motor pump has been investigated, which obtained a total power loss of 1.6034 W and efficiency at 98.11%.
Abstract: Solar photovoltaic powered water pumping systems are becoming very successful in regions where there is no opportunity for connecting the grid. The photovoltaic technology converts solar energy into electrical energy for operating DC or AC motor-based water pump. In the case of a solar AC motor water pump, it engages two energy conversion stages (DC-DC and DC-AC) in the power conditioning unit. This usually resulted in increased size, cost, complexity and decreases efficiency of the entire system. In addition, the existing two-level inverter (DC-AC) stage generates higher harmonics in output voltage that deteriorates AC motor performance. As a consequence, a single energy conversion stage with more than two-level output voltage could be possible by utilizing multilevel inverters which replaces two-level inversion stage easily to get higher levels of output voltages as well for extracting best results from the motor. Moreover, they can able to operate with reduced switching frequency that certainly reduces switching losses. Still, the increased voltage levels comprise a higher number of power semiconductor switches, cumulative voltage stress and switching losses are making the system more complicated. In this paper an innovative seven-level inverter with five switches had been taken to investigate 0.5 H. P single phase induction motor water pump. This topology ensures minimum switching losses, lowering size along with less installation cost. In order to provide better insight into the working and performance of this proposed topology the simulation results performed in the MATLAB / Simulink environment and hardware implementation are depicted.

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Citations
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Journal ArticleDOI
TL;DR: This work focuses on a single-phase water pumping system where the PV and grid power is connected by the proposed modified universal power supply system.
Abstract: The water pumping system is widely used for household applications. This work focuses on a single-phase water pumping system. The PV and grid power is connected by the proposed modified universal c...

5 citations

Journal ArticleDOI
TL;DR: In this paper, the performance of a nanostructured solar collector has been carried out using TRNSYS, the analysis determines the outlet temperature of the working fluids passed through the direct solar collector.
Abstract: The convective and conductive heat transfer between the solar collector and working fluids make the photothermal performance limited, a higher rate of heat loss occurs from the surface of the conventional absorber to the surroundings. Direct absorption solar collectors (DASC) are a favorable alternative for improved photothermal performance. In this study, simulation based on the performance of a nanostructured solar collector has been carried out using TRNSYS. The connective and conductive heat transfer from direct solar collectors were improved by using nanofluids, three different nanostructured materials, including CuO, GO and ZnO was used in this study. The analysis determines the outlet temperature of the working fluids passed through the direct solar collector. The TRNSYS model consists of a direct solar collector and weather model for Lahore city, the simulations were performed for the whole year for 1440 hours. The stability of these nanostructured materials in the water was investigated by using UV-spectrometer. Various performance parameters of direct solar collectors were determined, such as variation in outlet collector temperature, heat transfer rates. The numerical model has been validated with experimental results. The maximum outlet temperature of 63℃ was observed for GO based nanofluids. The simulation results show that for the whole year, nanofluids improved the performance of direct solar collectors. A significant improvement in the heat transfer rate of 23.52%, 21.11%, and 15.09% was observed for the nanofluids based on nanostructures of CuO, ZnO, and GO respectively, as compared to water. These nanostructured energy materials are beneficial in solar-driven applications like solar desalination, solar water, and space heating.

4 citations

Proceedings ArticleDOI
24 Jun 2022
TL;DR: In this article , the performance analysis of a solar PV-based three-phase multilevel-inverter for a water pumping system is proposed in the absence of a utility grid, photovoltaic array-aided water pumping devices are becoming more common in residential and agricultural applications.
Abstract: Poor electricity supply in rural areas is still the biggest challenge India is facing. Farmers usually depend on supply or diesel generators for electricity which in-turns contribute to pollution. This aspect, on the other hand, allows for more efficient use of energy. In the absence of a utility grid, photovoltaic (PV) array-aided water pumping devices are becoming more common in residential and agricultural applications. The Performance analysis of a Solar PV-based Three-Phase Multilevel-Inverter for a water pumping system is proposed in this paper. Solar PV Array is used to generate dc voltage regardless of different irradiance and temperature while collecting maximum power from the sun. Reduced Switch Count Multilevel Inverter is used to produce three-phase ac output from the dc, produced by solar PV. This three-phase AC output is used for running an induction motor-based water pumping system for different loads. The simulation was done in MATLAB and the obtained results are found satisfactory at different load conditions.

1 citations

Proceedings ArticleDOI
08 Jul 2021
TL;DR: In this article, a solar PV water pumping system is proposed for grid isolated areas in India, which works on solar power generated from PV panel during daytime and energy stored in battery at night time or during clouding days.
Abstract: India is a country where more than 85% of its population is involved in agriculture. Most of the groundwater pumps used for irrigation depends mainly on electricity or diesel for this operation. So, the source of energy used for pumping water is a big problem in rural areas Far from the current grid supply. Production of thermal and nuclear energy are also harmful to environment. So, solar PV water pumping system is the best choice for grid isolated areas. This project aims to develop a solar pump system which works on solar power generated from PV panel during daytime and energy stored in battery at night time or during clouding days.
References
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Journal ArticleDOI
TL;DR: In this article, some of the recently proposed multilevel inverter topologies with reduced power switch count are reviewed and analyzed, both in terms of the qualitative and quantitative parameters.
Abstract: Multilevel inverters have created a new wave of interest in industry and research. While the classical topologies have proved to be a viable alternative in a wide range of high-power medium-voltage applications, there has been an active interest in the evolution of newer topologies. Reduction in overall part count as compared to the classical topologies has been an important objective in the recently introduced topologies. In this paper, some of the recently proposed multilevel inverter topologies with reduced power switch count are reviewed and analyzed. The paper will serve as an introduction and an update to these topologies, both in terms of the qualitative and quantitative parameters. Also, it takes into account the challenges which arise when an attempt is made to reduce the device count. Based on a detailed comparison of these topologies as presented in this paper, appropriate multilevel solution can be arrived at for a given application.

890 citations

Journal ArticleDOI
TL;DR: In this paper, the existing research works on PV cell model parameter estimation problem are classified into three categories and the research works of those categories are reviewed based on the conducted review, some recommendations for future research are provided.
Abstract: The contribution of solar photovoltaics (PV׳s) in generation of electric power is continually increasing. PV cells are commonly modelled as circuits. Finding appropriate circuit model parameters of PV cells is crucial for performance evaluation, control, efficiency computations and maximum power point tracking of solar PV systems. The problem of finding circuit model parameters of solar PV cells is referred to as “PV cell model parameter estimation problem,” and is highly attracted by researchers. In this paper, the existing research works on PV cell model parameter estimation problem are classified into three categories and the research works of those categories are reviewed. Based on the conducted review, some recommendations for future research are provided.

419 citations


"Investigation of Standalone Solar P..." refers methods in this paper

  • ...The PV unit can be represented by two model: single diode model (SDM) and the double diode model (DDM) (Jordehi, 2016; Sudhakar Babu et al., 2016)....

    [...]

Journal ArticleDOI
TL;DR: In this paper, the authors present a comprehensive literature review of solar water pumping technology, evaluate the economic viability, identify research gaps and impediments in the widespread propagation of PV water pumping systems and technology.
Abstract: The deficit in electricity and high diesel costs affects the pumping requirements of community water supplies and irrigation; so using solar energy for water pumping is a promising alternative to conventional electricity and diesel based pumping systems. Solar water pumping is based on photovoltaic (PV) technology that converts solar energy into electrical energy to run a DC or AC motor based water pump. The main objective of the study is to present a comprehensive literature review of solar pumping technology, evaluate the economic viability, identify research gaps and impediments in the widespread propagation of solar water pumping systems and technology. The study focuses on update on solar water pumping technology, performance analysis, optimum sizing, degradation of PV generator supplying power to pump, economic and environmental aspects and advances in PV materials and efficiency improvements. An update on the current state of research and utilization of solar water pumping technology is presented. Factors affecting performance of PV water pumping system, degradation of PV modules and efficiency improving techniques of PV water pumping systems are identified. Solar water pumping is found to be economically viable in comparison to electricity or diesel based systems for irrigation and water supplies in rural, urban and remote regions. The investment payback for some PV water pumping systems is found to be 4–6 years. The recent Indian incentives for PV pumping and policy initiatives for the promotion of solar water pumping in developing countries are also discussed. Potential follow-up research areas are also identified.

383 citations


"Investigation of Standalone Solar P..." refers methods in this paper

  • ...The advancements also occurred in PV panel tracking mechanism, from manual tracking to automatic dual-axis tracking systems, with the help of microcontroller programming (Chandel et al., 2015)....

    [...]

Journal ArticleDOI
14 Apr 2017
TL;DR: Six family members of the modular multilevel cascade converters, intended for grid-tied applications and medium-voltage high-power motor drives are paid much attention.
Abstract: This paper provides a chronological overview of the topology for multilevel converters, and discusses their different terminology usages and characteristics. The multilevel converters include three-level neutral-point-clamped (NPC) and neutral-point-piloted (NPP) inverters, three-level and four-level flying-capacitor (FLC) inverters, and a family of modular multilevel cascade converters. Some have already been put into commercial use, some have been on a research and development stage, and others have been on an academic research stage. This paper pays much attention to six family members of the modular multilevel cascade converters, intended for grid-tied applications and medium-voltage high-power motor drives.

380 citations


"Investigation of Standalone Solar P..." refers background in this paper

  • ...Of those, the major three topologies commercially preferred in industries are cascaded H-bridge (CHB) multilevel inverter, diode clamped and flying capacitor type (Akagi, 2017)....

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Journal ArticleDOI
TL;DR: The proposed single-phase cascaded MLI topology is designed with the aim of reducing the number of switches and theNumber of dc voltage sources with modularity while having a higher number of levels at the output.
Abstract: Multilevel inverters (MLIs) are a great development for industrial and renewable energy applications due to their dominance over conventional two-level inverter with respect to size, rating of switches, filter requirement, and efficiency. A new single-phase cascaded MLI topology is suggested in this paper. The proposed MLI topology is designed with the aim of reducing the number of switches and the number of dc voltage sources with modularity while having a higher number of levels at the output. For the determination of the magnitude of dc voltage sources and a number of levels in the cascade connection, three different algorithms are proposed. The optimization of the proposed topology is aimed at achieving a higher number of levels while minimizing other parameters. A detailed comparison is made with other comparable MLI topologies to prove the superiority of the proposed structure. A selective harmonic elimination pulse width modulation technique is used to produce the pulses for the switches to achieve high-quality voltage at the output. Finally, the experimental results are provided for the basic unit with 11 levels and for cascading of two such units to achieve 71 levels at the output.

189 citations