Study of Energy Yield on Grid Connected Micro-Inverter Type 2.24 kW PV System Using PVsyst Simulation Software
- PDF / 1,090,993 Bytes
- 7 Pages / 612 x 792 pts (letter) Page_size
- 79 Downloads / 181 Views
R POWER PLANTS
Study of Energy Yield on Grid Connected Micro-Inverter Type 2.24 kW PV System Using PVsyst Simulation Software N. A. Matchanova, *, Kim Oun Seoka, b, A. A. Mirzaeva, M. A. Malikova, and D. Sh. Saidovc aInternational
Solar Energy Institute, Tashkent, 100084 Uzbekistan Institute of Irrigation and Agricultural Mechanization Engineers, Tashkent, 100000 Uzbekistan c Urgench Branch of Tashkent University of Information Technologies, Urgench, 220100 Uzbekistan *e-mail: [email protected]
bTashkent
Received August 6, 2019; revised January 10, 2020; accepted March 12, 2020
Abstract—The output energy characteristics of a 2.24 kW grid-connected micro-inverter type photovoltaic power generation system installed in Tashkent were studied using PVsyst software. In the best conditions, it operated for about 10 h a day and produced 14.65 kW h of power. Although PVsyst predicted 79.7%, the actual performance ratio (PR) was very high, at 95.5%. Analysis of the loss parameters revealed that the module’s temperature influence was the most significant (–8.5%), followed by the inverter’s switching loss (–5.7%). Keywords: photovoltaic system, micro-inverter, solar energy, PVsyst, simulation software DOI: 10.3103/S0003701X20040076
INTRODUCTION Nowadays, socio-economic reforms in Uzbekistan are leading to significant changes in all areas of the country, including in the use of natural resources, the use of innovative technologies and renewable energy sources (RES). It is well known that Uzbekistan is geographically located in favorable climatic conditions for the development of solar energy. The summer climate is cloudless with a sufficiently large number of sunny days, such as more than 300 days, which leads to the use of all types of solar installations [1]. Climatically, in the case of Tashkent, the average solar radiation is high-intensity above 5.33 kW h/(m2 day) [2], and the weather is perfect for solar power due to the clear weather, fewer clouds, and a short rainy season. Geopolitically, Uzbekistan has the right conditions for building large capacity solar power plants with flat, unforested land and many of the barren areas. On the other hand, despite abundant natural energy sources such as gas, oil, and coal, electrical energy is not sufficient in Uzbekistan. It is also known to cause massive power loss due to the aging of power plants and transmission and distribution power facilities. For these reasons, the government has recently decided to increase the renewable energy ratio to 25% by 2030 and build three 100 MW solar power plants by 2021 [3]. Usually, photovoltaic power plants, etc., are installed near consumers, so reducing energy density and improving energy efficiency. One of the advantages of a locally installed photovoltaic system is that it
enhances the performance of the electric system. At the same time, photovoltaic arrays (distributed generation objects) provide the distribution network with energy from the load side, reduce the load of the active power of the feeder, and improve the voltage prof
Data Loading...
