International Journal of Renewable Energy Research 

About: International Journal of Renewable Energy Research is an academic journal published by Gazi University. The journal publishes majorly in the area(s): Photovoltaic system & Renewable energy. It has an ISSN identifier of 1309-0127. Over the lifetime, 1944 publications have been published receiving 15497 citations. The journal is also known as: IJRER.

MATLAB/Simulink Based Modeling of Photovoltaic Cell

Abstract: This paper focuses on a MATLAB/Simulink model of a photovoltaic cell. This model is based on mathematical equations and is described through an equivalent circuit including a photocurrent source, a diode, a series resistor and a shunt resistor.The developed model allows the prediction of PV cell behavior under different physical and environmental parameters. The model can also be used to extract the physical parameters for a given solar PV cell as a function of temperature and solar radiation. In addition, this study outlines the working principle of PV module as well as PV array.In order to validate the developed model, an experimental test bench was built and the obtained results exhibited a good agreement with the simulation ones.

Challenges of Grid Integration of Wind Power on Power System Grid Integrity: A Review

Abstract: Wind Energy Conversion Systems (WECSs) exhibit variability in their output power as a result of change in their prime movers (wind speed)This introduces a new factor of uncertainty on the grid and poses a lot of challenges to the power system planners and the utility operators in terms of the power system grid integrity ie power system security, power system stability and power quality This paper discusses the various challenges of wind power when integrated into the grid and identifies different mitigating strategies for its smooth integration This paper therefore enables the specifications for mitigation/integration technologies to be appreciated and quantified

Effect of Dust Deposition on the Performance of Multi-Crystalline Photovoltaic Modules Based on Experimental Measurements

Abstract: This paper investigates the dust effect on the photovoltaic module (multi-crystalline) performance (the output voltage and generated power). The degradation of PV performance due to the deposition of different pollutant types, and accumulation has been investigated. Experiments concerning the effects of air pollutants (red soil, ash, sand, calcium carbonate, and silica) on the power generated are conducted and analyzed. The results show that the reduction in PV voltage and power is strongly depending on pollutant type, and deposition level. The results show that the ash pollutant is the most effecting dust particle on the PV module voltage as compared to the other used dust pollutants where high reduction in PV voltage (25%) is recorded when the ash pollutant is used.

A Review on Particle Emissions from Small Scale Biomass Combustion

Abstract: Combustion of biomass fuels in small scale heating appliances is an important source of particle emissions. Majority of the particles is less than 1 µm (micrometer) and emitted directly to the ambient air from the combustion devices . There is a growing concern worldwide about particle emissions from biomass combustion. This review paper has been conducted based on the research articles published in the journals, conference proceedings, and technical reports from the research institutions between the periods from 2000 to 2010. Types of particles, formation mechanisms, their characteristics and available measurement techniques are discussed at the beginning . Particle emission characteristics on small scale biomass combustion from the literature have been discussed in order to provide in depth knowledge as assistance to readers interested in this research field. Finally, the literature data has been summarized into three categories to show how combustion appliances and fuel affect the mass concentrations, number concentrations, corresponding size distributions and chemical compositions. Mass concentrations of particles in the flue gas from small scale combustion appliances reported in the literature to be in the range of 7-67 mg/Nm 3 , while particle number concentrations in the range of 0.8 x 10 7 - 5.5 x 10 9 particles/cm 3 . The dominating chemical compositions of the particle emissions in the fine mode were potassium fraction followed by sulphur, chlorine and sodium and consequently dominating chemical compounds were K 2 SO 4 and KCl. From the literature it is clear that particle emissions from biomass combustion are closely related not only to the fuel properties but also to the combustion conditions and combustion appliances.

A Comprehensive Study on Microgrid Technology

Abstract: Grid connection capability of distributed generation attracts researchers due to the cumulative demand for electricity and environment pollution concern as a new emerging technology for providing reliable and clean power supply. A microgrid comprises distributed generation, energy storage, loads, and a control system that is capable of operating in grid-tied mode and/or islanded mode. As operation modes are shifted, the microgrid should successfully manage the voltage and frequency adjustment in order to protect the grid and any loads connected to the system. Facilitation of the generation-side and load-side management and the resynchronization process is required. This paper presents an overall description and typical distributed generation technology of a microgrid. It also adds a comprehensive study on energy storage devices, microgrid loads, interfaced distributed energy resources (DER), power electronic interface modules and the interconnection of multiple microgrids. Details of stability, control and communication strategies are also provided in this study. This article describes the existing control techniques of microgrids that are installed all over the world and has tabulated the comparison of various control methods with pros and cons. Moreover, it aids the researcher in envisioning an actual situation using a microgrid today, and provides insight into the possible evolvement of future grids. In conclusion, the study emphasizes the remarkable findings and potential research areas that could enrich future microgrid facilities.