Simulation of Electrical Characteristics of a Solar Panel

The fast-growing photovoltaic system market leads to the necessity of the informed choice of major energy components and optimization of operating conditions in order to improve energy efficiency. Development of mathematical models of the main components of photovoltaic systems to ensure their comprehensive study is an urgent problem of improving and practical using of the technology of electrical energy production. The paper presents a mathematical model of the solar module implemented in the popular software MATLAB/Simulink. Equivalent circuit of the solar cell with a diode parallel without derived resistance is used for modelling. The serie8s resistance of the solar module is calculated by Newton's iterative method using the data of its technical specifications. It ensures high precision of simulation. Model validity was evaluated by the well-known technical characteristics of the module Solarex MSX 60. The calculation results of the experiment showed that the obtained current-voltage and current-watt characteristics of the model are compatible with those of the manufacturer

Method for selecting parameters and assessing efficiency of wind-diesel power plants for autonomous electrical supply systems

The article presents an original technique for selecting parameters and evaluating the efficiency of wind-diesel power plants for isolated power supply systems. The initial data to perform energy calculations are simulation models of electric load and wind speed. The load is simulated using typical schedules of electric loads of a decentralized consumer, taking into account a random component for each hour of the day. To create a simulation model of the wind, a typical climatic series of wind speeds at a prospective site of the power plant has been constructed according to the data of long-term meteorological observations. The proposed technique was verified through the example of choosing a wind-diesel power plant for the village of Ust-Olenyok of the Republic of Sakha (Yakutia)

Implementation of BIM-technologies in the educational program of the architectural university

BIM-technologies are the dynamically developing trend in a world construction practice. In conditions of a lack of qualified specialists and lack of appropriate educational standards, we offer our practice-oriented methodology for teaching BIM (Building Information Modeling), which is based on the use of new information technologies. Also some projects implemented in BIM and GreenBIM technologies at the Applied Informatics Department are presented

Implementation of BIM-technologies in the educational program of the architectural university

BIM-technologies are the dynamically developing trend in a world construction practice. In conditions of a lack of qualified specialists and lack of appropriate educational standards, we offer our practice-oriented methodology for teaching BIM (Building Information Modeling), which is based on the use of new information technologies. Also some projects implemented in BIM and GreenBIM technologies at the Applied Informatics Department are presented

Influence of the Macroeconomic Environment on Management of the Organization Taking into Account an Import Substitution Factor

In the article tools for a research of an economic macroenvironment of the organization are offered. The expediency of use for this purpose of not cost macroeconomic cost indexes is proved that is especially important taking into account the import substitution policy measures realized in Russia. As an example regularities of dynamics of speed of the address of money supply in the certain countries, in comparison with Russia are revealed, trends of this indicator on the basis of model of a two-level black box are analyzed. Recommendations about a research of economic systems by means of polynomial models which results of application can be used in the analysis and forecasting of processes of economic development taking into account an import substitution factor are formulated

Method for Prediction of the Power Output from Photovoltaic Power Plant under Actual Operating Conditions

Solar photovoltaic technology is one of the most rapidly growing renewable sources of electricity that has practical application in various fields of human activity due to its high availability, huge potential and environmental compatibility. The original simulation model of the photovoltaic power plant has been developed to simulate and investigate the plant operating modes under actual operating conditions. The proposed model considers the impact of the external climatic factors on the solar panel energy characteristics that improves accuracy in the power output prediction. The data obtained through the photovoltaic power plant operation simulation enable a well-reasoned choice of the required capacity for storage devices and determination of the rational algorithms to control the energy complex

The experimental studies of operating modes of a diesel-generator set at variable speed

A diesel generator set working at variable speed to save fuel is studied. The results of experimental studies of the operating modes of an autonomous diesel generator set are presented. Areas for regulating operating modes are determined. It is demonstrated that the transfer of the diesel generator set to variable speed of the diesel engine makes it possible to improve the energy efficiency of the autonomous generator source, as well as the environmental and ergonomic performance of the equipment as compared with general industrial analogues

Development of The Structural and Functional Design of the Laboratory Bench for Experimental Research Diesel Generator Sets on Variable Speed

A diesel generator set working at variable speed to save fuel is studied. A description is provided of a laboratory bench for conducting experimental studies of a variable speed diesel generator set. Its component parts are described, and its technical characteristics are given

THE FACTORS OF IMPACT ON CONTENT AND DYNAMICS OF LEGISLATION EVOLUTION

Purpose: Ensuring the rule of law, human rights, the principles of constitutionalism and the democratization of society, the factor analysis of legislation remains relevant during the period of transformation of state and public institutions. Methodology: The study of factors is present at the theoretical and applied levels: the subject of the theory of law traditionally captures the laws and trends in the formation of the legislative system, primarily in connection with the factors that determine the boundaries and scope of legal regulation. 50 surveys conducted to investigate the factors of impact on content and dynamic of legislation evolution Result: The analysis of the impact factors of influence on the content, structure, and dynamics of the legislation, which is always conditioned by the development of objective and subjective circumstances, is in the focus of the paper. The study of factors is especially relevant in the period of society's and its legal system transformation in the direction of ensuring the rule of law and human rights. Research puts emphasis on the development of forecasting principles of legislation evolution dynamics. Applications: This research can be used for the universities, teachers, and students. Novelty/Originality: In this research, the model of the factors of impact on content and dynamics of legislation evolution is presented in a comprehensive and complete manner

Mathematical model of solar radiation based on climatological data from NASA SSE

An original model of solar radiation arriving at the arbitrarily oriented surface has been developed. The peculiarity of the model is that it uses numerical values of the atmospheric transparency index and the surface albedo from the NASA SSE database as initial data. The model is developed in the MatLab/Simulink environment to predict the main characteristics of solar radiation for any geographical point in Russia, including those for territories with no regular actinometric observations