scholarly journals Simulation Based Three Phase Single Stage Grid connected Inverter Using Solar Photovoltaics

2021 ◽  
Vol 23 (05) ◽  
pp. 625-635
Author(s):  
Ms. Kruthi Jayaram ◽  
Keyword(s):  
Power Systems ◽  
High Performance ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Single Stage ◽  
Maximum Output ◽  
Electric System ◽  
Photovoltaic Array ◽  
Three Phase ◽  
Grid Connected Inverter

Since ages, the best alternative for fossil fuel generation is found from Renewable energy sources. One among them is the Solar energy which can produce solar power. Solar power can be taught as “Solar Electricity” and is the most practical, cleanest forms of Renewa-ble Energy. Solar Power Systems otherwise called as PV systems can be of various types like off-grid and on-grid systems. This paper, focuses on Grid connected solar electric system. The paper aims at modelling high performance Three Phase Single Stage Grid Connected Inverter. So as to achieve maximum output from the photovoltaic array, MPPT Tracking is connected. The conversion from DC output of photovoltaic array is done to AC so that it is fed into the grid, a IGBT based inverter is used which converts from DC to AC power. A Simulation model is developed in MATLAB Simulink and results are presented in the paper.

Controlling Single-Stage and Quasi-Resonant Flyback Converters for Solar Power Systems

2021 ◽  
Vol 7 (2) ◽  
pp. 148
Author(s):  
Yasmine Ashraf ◽  
Noorhan Elsobky ◽  
Mostafa Hamouda ◽  
Mohamed Sabry ◽  
Sahar Kaddah ◽  
...  
Keyword(s):  
Power Systems ◽  
Solar Power ◽  
Single Stage ◽  
Flyback Converters

scholarly journals Nanocrystalline and Silicon Steel Medium-Frequency Transformers Applied to DC-DC Converters: Analysis and Experimental Comparison

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2062 ◽  
Author(s):  
Dante Ruiz-Robles ◽  
Jorge Ortíz-Marín ◽  
Vicente Venegas-Rebollar ◽  
Edgar L. Moreno-Goytia ◽  
David Granados-Lieberman ◽  
...  
Keyword(s):  
Power Systems ◽  
Smart Grids ◽  
High Performance ◽  
Renewable Energy Sources ◽  
Real Life ◽  
Silicon Steel ◽  
Core Material ◽  
Experimental Comparison ◽  
Medium Frequency ◽  
Wind Power Systems

High performance, highly efficient DC-DC converters play a key role in improving the penetration of renewable energy sources in the context of smart grids in applications such as solid-state transformers, built-in power drives in electric vehicles and interfacing photovoltaic and wind-power systems. Advanced medium-frequency transformers (MFTs) are fundamental to enhance DC-DC converters and determining its behavior, therefore MFT design procedures have become increasingly important in this context. This paper investigates which type of core material, between nanocrystalline and silicon steel, has the best properties for designing MFTs for distinct applications. Unlike to other proposals, in this work, two 1 kVA-120 V/240 V-1 kHz lab MFT prototypes, with a different type of core material, are developed for the purpose of comparing its physical characteristics, behavior, and performance under real-life conditions. A final section, the experimental results show that the nanocrystalline MFT has greater power density and efficiency. The results of this work introduce nanocrystalline MFTs as an option in a wider range of applications in niches in which other materials are currently used.

scholarly journals Stability Operation of Grid Connected Inverter

2019 ◽  
Vol 114 ◽  
pp. 04003
Author(s):  
Armeev Denis ◽  
Chuvashev Roman
Keyword(s):  
Power Systems ◽  
Renewable Energy Sources ◽  
Static Stability ◽  
Energy Sources ◽  
Electrical Grid ◽  
Operating Modes ◽  
Technical Requirements ◽  
Grid Connected Inverter ◽  
Sustainable Power

In the modern electric grid, there is an active penetration of distributed renewable energy sources and energy storage systems, which often require connection by means of electronic converter. Energy sources connected in the grid by means of electronic converter or inverter has large different parameters and operating modes compared to the generation of a traditional one. That leads to a different behavior of such sources in the network. With a large penetration of this kind of generation in the electrical grid, there is a need to revise the principles and methods of design and operation of both inverters and power systems. Otherwise there may be conditions in which it becomes impossible to ensure sustainable power supply and quality of power that satisfy the technical requirements. The goal of the paper is to study the operations of electricity sources connected in the power grid by means of inverter, analyzing the static stability of objects of this kind, as well as studying the possibility of creating algorithms that can successfully adapt such generation objects into a single power system.

Thermodynamic Study of Advanced Supercritical Carbon Dioxide Power Cycles for High Performance Concentrating Solar Power Systems

2012 ◽  
Author(s):  
Craig S. Turchi ◽  
Zhiwen Ma ◽  
Ty Neises ◽  
Michael Wagner
Keyword(s):  
Power Systems ◽  
High Performance ◽  
High Efficiency ◽  
Solar Power ◽  
Thermal Power ◽  
Department Of Energy ◽  
Thermal Mass ◽  
Brayton Cycle ◽  
Concentrating Solar Power ◽  
Compact Size

In 2011, the U.S. Department of Energy (DOE) initiated a “SunShot Concentrating Solar Power R&D” program to develop technologies that have the potential for much higher efficiency, lower cost, and/or more reliable performance than existing CSP systems. The DOE seeks to develop highly disruptive Concentrating Solar Power (CSP) technologies that will meet 6¢/kWh cost targets by the end of the decade, and a high-efficiency, low-cost thermal power cycle is one of the important components to achieve the goal. Supercritical CO2 (s-CO2) operated in a closed-loop Brayton cycle offers the potential of equivalent or higher cycle efficiency versus superheated or supercritical steam cycles at temperatures relevant for CSP applications. Brayton-cycle systems using s-CO2 have a smaller weight and volume, lower thermal mass, and less complex power blocks versus Rankine cycles due to the higher density of the fluid and simpler cycle design. The simpler machinery and compact size of the s-CO2 process may also reduce the installation, maintenance and operation cost of the system.

Dish-Stirling Systems: An Overview of Development and Status

2003 ◽  
Vol 125 (2) ◽  
pp. 135-151 ◽  
Author(s):  
Thomas Mancini ◽  
Peter Heller ◽  
Barry Butler ◽  
Bruce Osborn ◽  
Wolfgang Schiel ◽  
...  
Keyword(s):  
Power Systems ◽  
High Performance ◽  
Solar Power ◽  
Current Status ◽  
Present System ◽  
Maintenance Costs ◽  
Capital Costs ◽  
Market Opportunities ◽  
Substantial Progress ◽  
Primary Focus

Dish-Stirling systems have demonstrated the highest efficiency of any solar power generation system by converting nearly 30% of direct-normal incident solar radiation into electricity after accounting for parasitic power losses[1]. These high-performance, solar power systems have been in development for two decades with the primary focus in recent years on reducing the capital and operating costs of systems. Even though the systems currently cost about $10,000 US/kW installed, major cost reduction will occur with mass production and further development of the systems. Substantial progress has been made to improve reliability thereby reducing the operating and maintenance costs of the systems. As capital costs drop to about $3000 US/kW, promising market opportunities appear to be developing in green power and distributed generation markets in the southwestern United States and in Europe. In this paper, we review the current status of four Dish-Stirling systems that are being developed for commercial markets and present system specifications and review system performance and cost data. We also review the economics, capital cost, operating and maintenance costs, and the emerging markets for Dish-Stirling systems.

scholarly journals Independent Component Analysis and Sophisticated Distribution Control Algorithms based Improving the 9685 of Solar Power Generation

2019 ◽  
Vol 8 (4) ◽  
pp. 5589-5595
Keyword(s):  
Power Generation ◽  
Independent Component Analysis ◽  
High Performance ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Component Analysis ◽  
Power Converter ◽  
Maximum Energy ◽  
Independent Component ◽  
Solar Power Generation

Today, people are increasingly worried about environmental problems due to fuel shortage and generation of renewable energy sources. Among the renewable resources, wind generators and photovoltaic panels are primary competitors. For most of their applications, they have the advantages of having a load interface with different power converter circuits for maintenance and free of contamination, but their installation costs are high. Normally Photovoltaic modules also have relatively low conversion efficiency and Overall system cost of PV using Maximum Power Point Tracking (MPPT) techniques are high. The volume can be reduced by the use of high-performance power conditioners that allow for maximum energy consumption. Existing solar power generation systems have some disadvantages of being all day as a result of less direct exposure to true sunlight. This work is aimed at exploring the functions of a MPPT system that includes installations of sophisticated distribution control (SDC) and Independent Component Analysis (ICA) methods. The duty cycle of power converter is significantly controlled using proposed SDC and ICA algorithms and guarantee MPPT operation at its highest efficiency. The function of proposed ICA and SDC has been compared with widely used in traditional algorithms in the MATLAB Simulink environment. Over 97% of capacity is achieved through the respective SDC and ICA methods.

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