Networked interactive solar panels over the roof photovoltaic system (PVS) and its cost analysis at Tashkent state technical University

Abstract

There is great potential for generating solar energy using unused space on roofs and vacant lots around buildings. Small amounts of energy generated by each individual household, industrial building, commercial building, or any other type of building can be used to partially meet the needs of the building's residents, and the surplus, if any, can be fed to the grid. To use the existing roof space of buildings, SPV systems on the roof of buildings can be installed to replace DG generators installed to provide the minimum load required to operate during load shedding. TSTU has a large unused roof area from both residential and office buildings. Therefore, it has a huge potential for generating solar energy by installing a grid-connected Solar system on the roof. We can reduce a large amount of bills by implementing a solar power plant. The government has also launched various solar energy incentive schemes, this article provides a brief overview of rooftop photovoltaic and small-scale solar generation systems, and discusses various government schemes. Since TSTU has a large scope for this scheme, so the calculation of the design capacity was made for the technological College and one residential building. A method has been developed for calculating the capacity of Autonomous solar power plants and its elements, which allows us to take into account changes in the load during the day and thereby accurately determine the required capacity of the battery and eliminate unjustified overestimation of the power of power plant elements and increase the cost of the Autonomous solar power plant itself.

Marmara Bölgesindeki Bir Konteyner Limanı İçin Fotovoltaik Enerji Sistem Kurulumunun Tekno-Ekonomik ve Çevresel Analizi

“…Bu durum, ülkemizde en az güneş ışınımı alan Karadeniz ve Marmara Bölgelerinin bile PV sistemler ile elektrik üretimi açısından daha etkin değerlendirilmesi gerektiğini ortaya koymaktadır. Dünyada ve ülkemizde bina çatılarında güneş enerjisinden elektrik üretimine yönelik çok sayıda sayısal ve deneysel çalışmalar [13][14][15][16][17][18][19][20][21] yapılmıştır. Dondariya ve arkadaşları tarafından Hindistan'da yapılan bir çalışmada; şebekeye bağlı çatı üstü PV sistemin fizibilitesini incelenmiş olup 20 adet 320 Wp nominal güçteki mono-kristal silikon sistem ile yılda 1528.125 kWh / yıl enerji üretilerek, mevcut elektrik ihtiyacının yaklaşık %41'inden fazlasının karşılanabildiği gösterilmiştir [22].…”

New solutions for controlled compensating devices

“…First of all, these are methodological issues of calculating the installed power and determining the location of compensating devices, protecting capacitors from overloads in nonlinear circuits, etc. [7,11,15,[19][20][21].…”

“…The executive unit is made in the form of a thyristor T and a voltage relay (KV) and a resistor -R1 connected in parallel, through which the thyristor power electrodes are connected to the network. The regulating unit is made in the form of a saturable current transformer (TA), the primary winding of which is connected in series to the load, and the secondary winding through a series-connected diode and resistor -R2 -to the control electrode of the thyristor of the executive unit [7,11,[18][19][20][21].…”

Development of contactless switching devices for asynchronous machines in order to save energy and resources

“…In the world, by improving the dynamic modes of operation of technological machines and mechanisms, elements of the electromechanical system with modern control devices, improving the elements of the electromechanical system, using control methods, energy efficient technologies are created, renewable energy in industry [13][14][15][16][17][18][19][20][21]. The use of such energy-saving technologies saves not only electricity and material resources, but also provides resource-saving [1][2].…”