scholarly journals A Novel and Efficient INC Based MPPT for PV System

2021 ◽  
pp. 34-42
Author(s):  
Santosh Kumar ◽  
A. K. Wadhwani ◽  
Bharat Mishra
Keyword(s):  
Energy Source ◽  
Solar Power ◽  
Electrical Power ◽  
Generation Process ◽  
Power Demand ◽  
Generation System ◽  
Pv System ◽  
Maximum Power Tracking ◽  
New Type ◽  
Low Efficiency

This paper discuss the Incremental Conduction based MPPT for tracking the solar power. Due to increment of power demand here to find the new type of generation system. The concept of Renewable Energy Source (RES) is now become a most popular for generation of power. There are basically three types of RES is used for generation process, Wind, PV, fuel cell. Solar system is one of the best RES technique for generation of electrical power but it have some drawback. It is only used in the daytime and has low efficiency. For improving the efficiency of the system here maximum power tracking is needed. Here Incremental Conduction based MPPT for tracking the solar power is used. The whole model is simulated in MATLAB /SIMULINK for checking the performance of the system and is applicable to different type of domestic loads. The THD of the system is calculated.

Research on China's First Residential Grid-Connected Photovoltaic System

2013 ◽  
Vol 392 ◽  
pp. 563-567
Author(s):  
Yan Jie Dai ◽  
Chun Yan Sun ◽  
Xiao Yong Wang ◽  
Wei Hua Yang
Keyword(s):  
Power Generation ◽  
Power Quality ◽  
Electrical Power ◽  
Photovoltaic System ◽  
Pv System ◽  
Quality Analyzer ◽  
Low Efficiency ◽  
Power Metering ◽  
Pv Power Generation ◽  
Power Standard

Along with the continuous expansion of photovoltaic (PV) power generation, different capacity of grid connected PV system is gradually increased. China's first residential grid-connected PV system has interconnected successfully in QingDao and operated normally. This document analyzed electrical connected diagram of grid-connected PV system. Using power quality analyzer, the online power quality is monitored and analyzed. When PV power generation is low efficiency of operating state, harmonic current is over distortion limits. Monitoring data was simulated through electrical power standard source. To ensure power metering accuracy under harmonic, the watt-second method is proposed. Testing results show that smart electrical meter can meter accurately within 20 times harmonics.

Numerical Model of Thermoelectric Topping Cycle of Coal Fired Power Plant

2013 ◽  
Author(s):  
Armin Silaen ◽  
Bin Wu ◽  
Dong Fu ◽  
Chenn Zhou ◽  
Kazuaki Yazawa ◽  
...  
Keyword(s):  
Power Plant ◽  
Numerical Model ◽  
Electrical Power ◽  
Flame Temperature ◽  
Rankine Cycle ◽  
Generation Process ◽  
Steam Turbines ◽  
Gas Temperature ◽  
Steam Temperature ◽  
Low Efficiency

Traditional fossil fuel power generation process typically has low efficiency. Large amount of the energy loss in Rankine cycle steam turbines (ST) is due to the temperature difference between the combustion flame temperature ∼2250 K (adiabatic) and the high pressure steam temperature up to 900 K. However, some of this energy can be harvested using solid-state thermoelectric (TE) power generators which are placed into the gap between the flame temperature and the steam temperature that produce additional electrical power. This study investigates the potential placement of TE on water tube wall inside a boiler at a coal fired power plant. Three dimensional (3D) numerical model of a simplified TE module is developed and hot gas temperature and steam temperature from the boiler are used as boundary conditions at the hot side and cold side of the TE. The numerical results are compared with analytical calculations. The 3D effects of the thermal spreading in the TE module are investigated. Parameters such as TE leg cross-section area and TE fill factor are examined in order to maximize the electrical power production of the TE without sacrificing the boiler efficiency (i.e., reducing the steam temperature). The study also looks into the various locations inside the boiler that have good potential for TE installation.

Numerical Model of Thermoelectric Topping Cycle of Coal-Fired Power Plant

2015 ◽  
Vol 137 (9) ◽  
Author(s):  
Armin K. Silaen ◽  
Bin Wu ◽  
Chenn Zhou ◽  
Kazuaki Yazawa ◽  
Ali Shakouri
Keyword(s):  
Power Plant ◽  
Numerical Model ◽  
Electrical Power ◽  
Flame Temperature ◽  
Rankine Cycle ◽  
Generation Process ◽  
Steam Turbines ◽  
Gas Temperature ◽  
Steam Temperature ◽  
Low Efficiency

Traditional fossil fuel power generation process typically has low efficiency. Large amount of the energy loss in Rankine cycle steam turbines (ST) is due to the temperature difference between the combustion flame temperature ∼2250 K (adiabatic) and the high pressure steam temperature up to 900 K. However, some of this energy can be harvested using solid-state thermoelectric (TE) power generators which are placed into the gap between the flame temperature and the steam temperature that produce additional electrical power. This study investigates the potential placement of TE on water tube wall inside a boiler at a coal-fired power plant. Three-dimensional (3D) numerical model of a simplified TE module is developed, and hot gas temperature and steam temperature from the boiler are used as boundary conditions at the hot side and cold side of the TE. The numerical results are compared with analytical calculations. The 3D effects of the thermal spreading in the TE module are investigated. Parameters such as TE leg cross section area and TE fill factor are examined in order to maximize the electrical power production of the TE without sacrificing the boiler efficiency (i.e., reducing the steam temperature). The study also looks into the various locations inside the boiler that have good potential for TE installation.

scholarly journals Applying of Double Seasonal ARIMA Model for Electrical Power Demand Forecasting at PT. PLN Gresik Indonesia

2018 ◽  
Vol 8 (6) ◽  
pp. 4892
Author(s):  
Ismit Mado ◽  
Adi Soeprijanto ◽  
Suhartono Suhartono
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Arima Model ◽  
Electrical Power ◽  
Demand Forecasting ◽  
Future Research ◽  
Power Demand ◽  
Generation System ◽  
Electricity Load ◽  
Power Generation System

The prediction of the use of electric power is very important to maintain a balance between the supply and demand of electric power in the power generation system. Due to a fluctuating of electrical power demand in the electricity load center, an accurate forecasting method is required to maintain the efficiency and reliability of power generation system continuously. Such conditions greatly affect the dynamic stability of power generation systems. The objective of this research is to propose Double Seasonal Autoregressive Integrated Moving Average (DSARIMA) to predict electricity load. Half hourly load data for of three years period at PT. PLN Gresik Indonesia power plant unit are used as case study. The parameters of DSARIMA model are estimated by using least squares method. The result shows that the best model to predict these data is subset DSARIMA with order ([1,2,7,16,18,35,46],1,[1,3,13,21,27,46])(1,1,1)48(0,0,1)336 with MAPE about 2.06%. Thus, future research could be done by using these predictive results as models of optimal control parameters on the power system side.

scholarly journals IMPLEMENTACIÓN DE UN SISTEMA FOTOVOLTÁICO EN EL DISTRITO DE SAN BORJA, PARA APROVECHAR LA ENERGÍA SOLAR DURANTE LOS MESES DE VERANO

2016 ◽  
Vol 26 (1) ◽  
pp. 115
Author(s):  
Harry A. Rivera Tito ◽  
María E. Quintana Caceda ◽  
Vanessa Teixeira Roth
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Electric Power ◽  
Solar Power ◽  
Electrical Power ◽  
Photovoltaic System ◽  
Pv System ◽  
Carbon Dioxide Co2 ◽  
Coast Region

RESUMENEn este trabajo exponemos un método para abastecer de energía eléctrica a un grupo de personas que habitan en el distrito de San Borja – Lima, a través de un Sistema Fotovoltaico (SFV), lo cual no es común en la zona. Esto ayudará a disminuir los niveles de emisión de dióxido de carbono (CO2) a la atmósfera. Se ha determinado mediante el Atlas Solar del Perú que la potencia solar en la región de la costa alcanza al día un promedio, en el mes de marzo, de 6 a 6,5 kW.h/m2, si convertimos este dato a energía, es equivalente de 21,6 a 23,4 MJ/m2, lo cual es provechoso para el proyecto.Palabras clave- Energía solar, irradiancia, sistema fotovoltaico y energía eléctrica. ABSTRACTThrough this work we explain a method to provide electrical power to a group of people living in the district of San Borja - Lima, through a PV system, which is not common in the area. This would help to reduce emission levels of carbon dioxide (CO2) to the atmosphere. It has been determined by the Solar Atlas of Peru that the coast region solar power reaches 6 to 6,5 kW.h/m2 per day, average in the month of March, if we convert this data to energy is equivalent to 21,6 to 23,4 MJ/m2, which is of great advantage for the proyect.KeyWords.- Solar energy, irradiance, photovoltaic system and electric power.

Numerical Investigation of Thermoelectric Topping Cycle in Coal Fired Power Plant Boiler

2016 ◽  
Author(s):  
Armin Silaen ◽  
Bin Wu ◽  
Chenn Zhou
Keyword(s):  
Power Generation ◽  
Electrical Power ◽  
Flame Temperature ◽  
Three Dimensional ◽  
Rankine Cycle ◽  
Generation Process ◽  
Steam Turbines ◽  
Steam Temperature ◽  
Low Efficiency ◽  
Topping Cycle

Traditional fossil fuel power generation process typically has low efficiency. Large amount of the energy loss in Rankine cycle steam turbines (ST) is due to the temperature difference between the combustion flame temperature ∼2250 K (adiabatic) and the high pressure steam temperature up to 900 K. This paper investigates the potential of harvesting this energy to produce additional electrical power using solid-state thermoelectric (TE) power generators placed into the gap between the flame temperature and the steam temperature. Three dimensional (3D) numerical model of a simplified TE module is developed. Different dimensions of fin added to the TE module were investigated to maximize the additional electrical power generation without sacrificing the boiler efficiency.

scholarly journals Analisis Kelayakan Penggantian Nozzle Soot Blower pada PT. PJB UP Paiton Unit 1 dan 2

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Cecilia Intan Wijayanti ◽  
Wahyudi Sutopo
Keyword(s):  
Net Present Value ◽  
Financial Analysis ◽  
Ideal Condition ◽  
Generation Process ◽  
Present Value ◽  
Operational Analysis ◽  
High Consumption ◽  
New Type ◽  
Low Efficiency ◽  
The Ideal

<span class="fontstyle0">High electricity demand requires power companies to maintain the efficiency of every generation process. One factor affecting the efficiency of the production system is the reliability of the machine. Nozzle is a sparepart of the tool used to clean slaging on the wall of the boiler is Soot Blower . Soot Blower's current condition consumes steam nearly 400,000 kg/year from the ideal condition 332,000 kg/year. The high consumption of steam causes the high cost of coal and low efficiency Soot Blower. One alternative that can be offered is to replace the Nozzle with a new type that has a lower pressure that is Nozzle Gemini. The new alternative compared based on operational analysis that see comparison from preference matrix weight and financial analysis that see comparison on 10 year projection by Net Present Value(NPV), IRR and PP analysis. And it is known on both analysis of Gemini Nozzle usage is feasible to be applied.</span>

scholarly journals Transformer Less Self-Commutated PV Inverter

2021 ◽  
Vol 10 (8) ◽  
pp. 1-4
Author(s):  
Maithili P ◽  
Kanakaraj J
Keyword(s):  
Power Generation ◽  
High Efficiency ◽  
Low Cost ◽  
Photovoltaic Effect ◽  
Electrical Energy ◽  
Power Demand ◽  
Solar Pv ◽  
Pv System ◽  
Pv Inverter ◽  
Low Efficiency

The power demand is increased day by day and generation of electrical energy from non-renewable sources are not able to meet the demand. An alternate energy sources are the only solution to meet the power demand. The power generation from solar energy with photovoltaic effect is plays a major role. This Solar PV system has low efficiency. The power semiconductor devices and converter circuit along with inductive / magnetic circuit. The Inverter circuit have an influence on photovoltaic power generation to improve the level of output voltage along with efficiency. In this paper a new transformer less DC-AC converter is proposed, and it has high efficiency, requires less cost when compares with conventional inverter with transformer. Transformer less self-commutated photovoltaic inverter is reflected the advantages of central and string inverters. It gives high output power and low-cost converter. These transformer less DC-AC converter is connect with Boost/Buck-Boost converter for the better output. So, this proposed DC-AC converter topology is not required mechanical switching and it is lighter in size. The PV technology has low efficiency and utilize more cost for generation of power. The proposed transformer less PV inverter is the better choice to increase the usefulness and reduce the charge rate of this PV system.

scholarly journals IMPLEMENTACIÓN DE UN SISTEMA FOTOVOLTÁICO EN EL DISTRITO DE SAN BORJA, PARA APROVECHAR LA ENERGÍA SOLAR DURANTE LOS MESES DE VERANO

2016 ◽  
Vol 26 (1) ◽  
pp. 115
Author(s):  
Harry A. Rivera Tito
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Electric Power ◽  
Solar Power ◽  
Electrical Power ◽  
Photovoltaic System ◽  
Pv System ◽  
Carbon Dioxide Co2 ◽  
Coast Region

RESUMENEn este trabajo exponemos un método para abastecer de energía eléctrica a un grupo de personas que habitan en el distrito de San Borja – Lima, a través de un Sistema Fotovoltaico (SFV), lo cual no es común en la zona. Esto ayudará a disminuir los niveles de emisión de dióxido de carbono (CO2) a la atmósfera. Se ha determinado mediante el Atlas Solar del Perú que la potencia solar en la región de la costa alcanza al día un promedio, en el mes de marzo, de 6 a 6,5 kW.h/m2, si convertimos este dato a energía, es equivalente de 21,6 a 23,4 MJ/m2, lo cual es provechoso para el proyecto.Palabras clave- Energía solar, irradiancia, sistema fotovoltaico y energía eléctrica. ABSTRACTThrough this work we explain a method to provide electrical power to a group of people living in the district of San Borja - Lima, through a PV system, which is not common in the area. This would help to reduce emission levels of carbon dioxide (CO2) to the atmosphere. It has been determined by the Solar Atlas of Peru that the coast region solar power reaches 6 to 6,5 kW.h/m2 per day, average in the month of March, if we convert this data to energy is equivalent to 21,6 to 23,4 MJ/m2, which is of great advantage for the proyect.Key Words.- Solar energy, irradiance, photovoltaic system and electric power.

DEVELOPMENT OF THE SIMULATION AND CONTROL SYSTEM FOR AN INTEGRATED SOLAR ENERGY GENERATION AND STORAGE

2020 ◽  
pp. 133-142
Author(s):  
L. M. Abdali ◽  
V. V. Kuvshinov ◽  
E. A. Bekirov ◽  
F. M. Al-Rufaee
Keyword(s):  
Energy Storage ◽  
Power Plants ◽  
Solar Power ◽  
Storage System ◽  
Electrical Energy ◽  
Energy Storage System ◽  
Photovoltaic Systems ◽  
Generation Process ◽  
Generation System ◽  
Partial Shading

When photovoltaic stations operate, providing large populated areas of the planet, and generating significant amounts of electrical energy, problems often arise due to the inconstancy of the flux of incident solar radiation. This leads to failures in the operation of electrical networks and rapid wear of equipment. By equipping such facilities with new systems for the control and monitoring of photovoltaic parameters, it is possible to significantly increase the generation of electrical energy supplied to the general or local power system, and improve the efficiency of the electrical installations located at the solar power plant. The proposed work presents a general approach to modeling and controlling the operation of photovoltaic systems (PV systems). The necessary data for modeling are provided by manufacturers in the form of tables. The processing of this data provides experimenters and engineers with a convenient way to investigate the problems of integrating photovoltaic systems into uninterruptible generation installations to supply individual consumers. The two-stage power conversion system (PCS) proposed in this article works in conjunction with a photovoltaic generating system. The electrical energy storage system (BESS system) uses rechargeable batteries and can be connected to the DC circuit by means of a bidirectional converter. Thus, the BESS system may provide some auxiliary services that may be needed to improve operational efficiency during the generation process. This article describes a special system of uninterrupted operation (FRT-system), which allows you to create the possibility of uninterrupted operation and the generation of electrical energy by the generation system, in case of incorrect operation of individual nodes (for example, with partial shading of solar modules). The operation of an integrated generation system, an electric energy storage system (BESS-system) and a photovoltaic system (PV-system), together with the corresponding control systems simulated on Matlab platforms and the simulation results confirm the efficiency of the controller. When introducing the proposed systems at existing and under construction solar power plants (SPP), it is possible to significantly improve the efficiency of their work and increase the generation of electricity for consumers.

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