Mitigating techniques for the operational challenges of a standalone hybrid system integrating renewable energy sources

2017 ◽  
Vol 22 ◽  
pp. 18-24 ◽  
Author(s):  
P.G. Arul ◽  
Vigna K. Ramachandaramurthy
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Renewable Energy Sources ◽  
Energy Sources

Application of the Hybrid System of Solar Energy and Geothermal Heat Pump in Buildings

2011 ◽  
Vol 374-377 ◽  
pp. 137-140
Author(s):  
Hua Zhang ◽  
Hui Zhang
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Heat Pump ◽  
Hybrid System ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Operational Mode ◽  
Geothermal Heat ◽  
Geothermal Heat Pump ◽  
The Way

The hybrid system of solar energy and geothermal heat pump (GHP) can put the advantages of the two renewable energy sources together and make up the deficiencies of each other. The concept and the development of the hybrid system are introduced; the work principle and the operational mode of the system are analyzed. Through the introduction of two instances, this paper analyzes the way of the system in buildings and the saving potential applying the hybrid system.

scholarly journals GENERALIZED APPROACH FOR FEASIBILITY STUDY OF HYBRID SYSTEMS WITH RENEWABLE ENERGY SOURCES

2018 ◽  
pp. 64-73
Author(s):  
Ivan Bachev ◽  
Boris Demirkov ◽  
Ludmil Stoyanov ◽  
Vladimir Lazarov ◽  
Zahari Zarkov ◽  
...  
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Hybrid System ◽  
Energy Exchange ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Storage Devices ◽  
Wind Generators ◽  
Photovoltaic Generators

The purpose of this work is to assess the energies produced by a hybrid system composed of photovoltaic generators and wind turbines. This study aims to develop a method, which could facilitate the sizing of photovoltaic and wind generators in a given hybrid system. The proposed method could also help with the sizing of storage devices in the hybrid system, which provide energy for the consumer in moments when the primary renewable energy source is lacking or for sizing the energy exchange with the grid.

scholarly journals Adaptive Fuzzy Controller Design for Solar And Wind Based Hybrid System

2018 ◽  
Vol 7 (2.24) ◽  
pp. 283 ◽  
Author(s):  
M Rathaiah ◽  
P Ram Kishore Kumar Reddy ◽  
P Sujatha
Keyword(s):  
Fuzzy Logic ◽  
Renewable Energy ◽  
Hybrid System ◽  
Fuzzy Logic Controller ◽  
Fuzzy Controller ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Solar Pv ◽  
Adaptive Fuzzy ◽  
Adaptive Fuzzy Logic

Renewable Energy Resources plays an active role in standing against   global warming and reduce the use of conventional energy sources. Hybrid systems formed by combining the renewable energy sources are efficient relatively. The intent of this paper is to furnish endurable power for frontier and far-off places with hybrid-system of architecture. The intended system embodying DFIG and solar PV based wind turbine. In solar systems, control mechanism is essential for improving the performance. This paper proposes a method of incremental conductance approach based MPPT Adaptive Fuzzy Logic Controller for grid connected PV system which is composed of a boost converter and a three phase inverter. Adaptive Fuzzy Logic Controller provides fast response and better %THD compared to Fuzzy and PI controllers. In solar system, MPPT will magnify solar output power value. The DFIG has two controllers Grid-Side Control (GSC) and Rotor-Side Control (RSC). The rated rotor speed and DC-link voltage are regulated by RSC and GSC through PI, Fuzzy Logic Controller and AFLC strategies. By using simulation studies performed by three control strategies, %THD analysis is carried out.  

scholarly journals Cost Reduction of Hybrid System Using Current Loop Control for Inverter and Wind Variation Control

2019 ◽  
Vol 5 (9) ◽  
pp. 12-20
Author(s):  
Megha . ◽  
Ranjeeta Khare
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Power Efficiency ◽  
Renewable Energy Sources ◽  
Voltage Control ◽  
Energy Sources ◽  
Current Loop ◽  
Loop Control ◽  
System Cost ◽  
Hybrid Renewable Energy System

The hybrid renewable energy system (HRES) is a combination of renewable and conventional energy sources. It can also combine two or more renewable energy sources operating in standalone mode or in network mode. In this work two models have been created in with we have proposed a model of hybrid system in which inverter is controlled by a designed internal current loop controller and wind variations are adjusted using a algorithm. It was found to be that the proposed system gives 1150 VA output which is considerably more than the 1000VA output of the system with basic voltage control. The efficiency is enhanced from 68 % to 70%.  The system cost was found to be 70483.53 units in the system having basic voltage control and with the internal current loop control, it was reduced to 66795.26 units. Thus it can be drawn from this work that while designing an inverter control strategy the proposed internal current loop control can serve the purpose with better results in terms of power, efficiency and system cost.

scholarly journals Hybrid System Analysis using Solar and Wind Power

2019 ◽  
Vol 8 (4S2) ◽  
pp. 358-361
Keyword(s):  
Renewable Energy ◽  
Wind Power ◽  
Hybrid System ◽  
System Analysis ◽  
Renewable Energy Sources ◽  
Climatic Conditions ◽  
Energy Sources ◽  
Climate Conditions ◽  
Photo Voltaic ◽  
The One

Combination of Photo voltaic and wind power is the one of the best solution for providing cleaning and nonpolluting energy from two of the most abundant renewable energy sources. A few areas have a wealth of light energy while others have a plenitude of wind. Having a mix Hybrid system enables you to exploit the predominant climate conditions to amplify vitality generation. The electrical vitality (DC control) created utilizing Solar panel can be put away in batteries or can be utilized for providing DC stacks or can be utilized for inverter to encourage AC loads. Solar Energy is accessible just amid the day time while wind vitality is accessible for the duration of the day relying on the climatic conditions. Wind and sun powered vitality are correlative to one another, which makes the framework to create power nearly consistentlys.

scholarly journals Multivariate Analysis of a Wind–PV-Based Water Pumping Hybrid System for Irrigation Purposes

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3231
Author(s):  
Ludmil Stoyanov ◽  
Ivan Bachev ◽  
Zahari Zarkov ◽  
Vladimir Lazarov ◽  
Gilles Notton
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Meteorological Data ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Water Tank ◽  
Water Pumping ◽  
Nutritional Needs ◽  
One Year ◽  
Pv Generation

The Green Deal and increased nutritional needs are driving factors in human activities nowadays. Agriculture is an essential economic sector that can profit from the application of renewable energy sources by the assimilation of off-grid, arid and barren terrains. Power supplied by hybrid systems for water pumping is a solution for overcoming the stochastic character of the renewable energy sources. This paper presents a sizing methodology for a hybrid system with wind and PV generation and water tank storage, based on the consideration of the entire energy conversion chain with energy models and a one-year operation simulation. The PV generator is modeled using a reduced Durisch’s model, while for the wind generator a piecewise interpolation is used. The methodology is applied for sites in Bulgaria with specific agricultural crops and meteorological data. Combinations of PV (different technologies) and wind (different types) generators and water tank capacities are considered and discussed. The combinations are compared on the basis of three criteria: the investment cost, the satisfaction of crop requirements and system oversizing. The possibility for the introduction of battery storage is also examined. The results show some trends in the hybrid system sizing and the possibility to apply the proposed methodology for various sites, generators and crops.

scholarly journals Cost Optimization of Hybrid Energy System in Afghanistan using HOMER

2020 ◽  
Vol 9 (9) ◽  
pp. 172-181
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Renewable Energy Sources ◽  
Cost Optimization ◽  
Energy Sources ◽  
World Bank Group ◽  
Related Factors ◽  
Assistance Program ◽  
Data Set ◽  
Hybrid Energy

This paper presents the Cost Optimization of hybrid energy systems in two of the most important provinces of Afghanistan, electrification of Khulm district (Uljato) for Balkh province and Zendeh Jan district (Hotel Safid) for Herat province is purposed in this study. HOMER (Hybrid Optimization Model for Electric Renewables) pro version 3.23.8 is used for optimization, simulation and sensitivity analysis, HOMER is a great software to design and evaluate technically and financially the options for off-grid and on-grid power systems. Renewable resources for selected areas are analyzed in Global Solar atlas (GSA) and Global wind atlas (GWA} the result is compared with the meteorological tower data set, the GSA/GWA is the online website that provides a summary of solar potential, solar resources, wind speed, wind density, and other related factors globally. it is provided from World Bank Group with funding from the Energy Sector Management Assistance Program (ESMAP). The modeling of the hybrid system is purposed as grid-connected for both sites, the system is designed for 2.348MW and 1.622MW for Khulm and Zendeh Jan district respectively, and 10% of load variability is considered. as a result of the study, the Levelized cost of energy (LCOE) from the hybrid system is obtained 0.0566 USD/kWh and 0.0537 USD/kWh for Khulm and Zendeh Jan district respectively which will be 30 to 50 percent cheaper than the price of electricity that is imported from neighboring countries. The total electricity generation for Khulm and Zendeh Jan districts from solar and wind are 7,988,376 kWh/year and 6,218,710 kWh/year respectively. Accessibility of electricity is the important factor for the economic growth of Afghanistan, more than 1000MW of electricity is imported from neighboring countries that are not sustainable and reliable, while Afghanistan has a great potential of renewable energy sources (REs) whose utilization could help to lessen future supply gaps at a cost level that are economically and financially attractive The development of domestic generation is vital for Afghanistan and renewable energy sources (RES) with great potential can successfully be harnessed to meet these two requirements. Besides these renewable energies (REs) are clean energies, friendly with the environment, free of harmful emissions, and have a great impact on the reduction of global warming and climate change.

Renewable Energy Sources

IEE Review ◽  
1991 ◽  
Vol 37 (4) ◽  
pp. 152
Author(s):  
Kenneth Spring
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Sources
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