scholarly journals SOLAR INSOLATION CALCULATION PROGRAM IN MATLAB / SIMULINK ENVIRONMENT

2022 ◽  
Vol 1 (15) ◽  
pp. 66-70
Author(s):  
Yuriy Konovalov ◽  
Aleksey Haziev

The article describes the mathematical calculation of the inflow of solar insolation, the device and operation of the insolation calculation program, graphs showing the change in radiation from the influence of weather factors, the location of the installation of solar receivers are ob-tained

2012 ◽  
Vol 4 (1) ◽  
pp. 51-55
Author(s):  
Dominykas Vasarevičius ◽  
Modestas Pikutis

Solar cells generate maximum power only when the load is optimized according insolation and module temperature. This function is performed by MPPT systems. While developing MPPT, it is useful to create a mathematical model that allows the simulation of different weather conditions affecting solar modules. Solar insolation, cloud cover imitation and solar cell models have been created in Matlab/Simulink environment. Comparing the simulation of solar insolation on a cloudy day with the measurements made using a pyrometer show that the model generates signal changes according to the laws similar to those of a real life signal. The model can generate solar insolation values in real time, which is useful for predicting the amount of electrical energy produced from solar power. The model can operate with the help of using the stored signal, thus a comparison of different MPPT algorithms can be provided. Santrauka Saulės elementai didžiausią galią sukuria tik tada, kai apkrova yra parinkta pagal elementą veikiantį saulės energijos srautą ir modulio temperatūrą. Apkrovai parinkti naudojamos didžiausios galios sekimo (DGTS) sistemos. Kintant oro sąlygoms šios sistemos nespėja prisitaikyti prie saulės elemento parametrų. Kuriant ir tiriant DGTS algoritmus tikslinga sudaryti matematinį modelį, imituojantį skirtingomis oro sąlygomis veikiančius saulės elementus. Pateikiami sudaryti saulės energijos srauto (SES), debesų dangos imitavimo ir saulės modulio matematiniai modeliai Matlab/Simulink terpėje. Lyginant modeliuoto debesuotą dieną SES kitimo dėsnius su realiais piranometru pamatuotais rezultatais nustatyta, kad modeliu imituojamas SES atitinka realųjį. Modelyje generuojamos SES vertės realiajame laike yra naudingos prognozuojant saulės jėgainės pagamintos elektros energijos kiekį. Modelyje numatyta galimybė išsaugoti SES signalą, todėl juo galima atlikti tikslų skirtingų DGTS algoritmų veikimo palyginimą. Reikšminiai žodžiai: saulės energija, saulės elementai, didžiausios galios taško sekimas.


2014 ◽  
Vol 9 (4) ◽  
pp. 671 ◽  
Author(s):  
Paolo Giammatteo ◽  
Concettina Buccella ◽  
Carlo Cecati

Author(s):  
A N. Kabanov ◽  
◽  
S.A. Kabanova ◽  

Dendrochronological analysis was carried out in forest cultures of Pinus sylvestris of different ages growing in the green zone of Nur-Sultan city. It was found that the value of the annual radial growth is subject to a cycle with a period of 10-11 years. This is due to climatic conditions, in particular, with periods of solar insolation, which is confirmed by researches of other authors.


2019 ◽  
Vol 2 (1) ◽  
pp. 11-18
Author(s):  
Ravi Kant Rajan ◽  
◽  
C. Bhuvaneswari ◽  
P. Natarajan ◽  
G. Venkatesan ◽  
...  

Author(s):  
Kolyagina N.M. ◽  
Berezhnova T.A. ◽  
Klepikov O.V. ◽  
Kulintsova Ya.V.

Currently, and over the past decade, intensive research is being conducted in the field of organizational, preventive and therapeutic work with weather-sensitive and weather-dependent patients suffering from cardiovascular pathology. One of the most discussed issues in practical medicine is the application of climate conditions, with a fixed frequency and time of exposure. Conditions of influence of climatic factors, in some cases, can exceed the limits of the norm and, accordingly, have a pathological effect on the functional state of a person. Thus, we used data from statistically reliable results of 928 questionnaires processed and analyzed, reflecting the medical and social characteristics of patients with cardiovascular pathology. Direct results were evaluated by analyzing changes in the dynamics of indicators. According to a questionnaire survey, 62% of patients who have chronic diseases and seek medical help for diseases of the cardiovascular system believe that weather factors have a significant impact on their health. of the patients who do not have chronic diseases, 38% gave positive answers to the question about the weather sensitivity of their health. As part of the pilot project to create a system of long-term care for elderly and disabled citizens in the Voronezh region, patients are informed about the sources of obtaining specialized medical weather forecasts in the region; interaction between the parties is organized to conduct sanitary and educational work; medical examinations are organized and conducted; training sessions are organized for relatives of citizens who have lost the ability to self-service. Further organizational, preventive and therapeutic work with weather-sensitive and weather-dependent patients in the Voronezh region is characterized by an increase in the quality of medical care for patients with cardiovascular diseases.


Author(s):  
Dmitriy Krasnov ◽  
Vyacheslav Novoselsky

This work is devoted to the analysis of the possibility of constructing a dynamical model of a helicopter power supply system in the MATLAB SIMULINK program.


Sign in / Sign up

Export Citation Format

Share Document