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The main converter of mechanical wind energy into electricity in wind turbines is an electric generator. Typically, such systems use synchronous generators with permanent magnets on the rotor. The main disadvantage of this design is the complexity or the impossibility of adjusting the output parameters of the generator: voltage, power, etc. Known methods and tools aimed at solving this problem relate to cases where the wind speed is constant, ie constant. In real conditions, the nature of the wind is changeable. The average annual wind speed for Ukraine varies between ≈ 5-6 m / s. The current value of wind speed depends on weather conditions, time of day and season. Accordingly, the nature of the output power of the generator will be variable. In this paper, the authors evaluate the effectiveness of the correction of the output power of the generator of the multiplier wind turbine at discrete and random values of wind speed. The main power unit of this study is a magnetoelectric synchronous generator with two-sided arrangement of magnets on the rotor and with axial magnetic flux. To solve this goal, a numerical simulation mathematical model of the system was developed, consisting of a multiplier-free wind turbine and a magnetoelectric synchronous generator with two-way arrangement of magnets on the rotor and with axial magnetic flux in the MATLAB-Simulink software package. The developed simulation model takes into account the change of the output parameters of the generator when the wind speed changes and vice versa, the system in which the change of the initial state of the generator leads to a change in the parameters of the rotor of the wind turbine. The variability and discreteness of wind speed is realized in the MATLAB-Simulink system by generating signals, the values of which at certain points in time are a random variable distributed according to the normal (Gaussian) law with predetermined parameters. Using the developed mathematical model, numerous simulation experiments were performed, which investigated the efficiency of correction of the output power of the studied system when connecting static capacitors to the armature winding of the generator and when applying current to the additional winding of the magnetoelectric generator. When connecting an additional magnetizing capacitance ≈30 μF to the generator terminals, there is an increase in output power by ≈5-10%. When the voltage is applied to the excitation winding Uf = 8 V, there is an increase in the output power of the generator ≈30-40% than without regulation. Therefore, it is a more efficient way to correct the output power of the magnetoelectric generator. The developed mathematical model can be used in further research to synthesize the control law of the additional winding of the magnetoelectric generator for the most efficient conversion of mechanical wind energy into electrical energy.

There are many power plants like thermal, solar, hydro, nuclear etc. but there are some disadvantage of it like CO2 emission pollution, problem of global warming requirement of fuels cost etc. To avoid such factors we developed system is biomass power plant to meet the demands of electricity and environment concern day by day price of fuels that fact to which motivate to use renewable energy. Biomass is renewable in nature, carbon neutral and has the potential to provide large productive employment in rural areas. It is considered as one of the promising sources for generation of power / energy using commercially available thermal and biological conversion technologies. The fossil fuels are depleting very fast, it is very important to replace fossil fuels with best alternative fuel modes which will be available for requirement in abundance at the same time if it is ready at one’s disposal is a eminent balance to the environment. The sanctification for this need is the bio mass power plant; on finding the major advantage of bio mass power plant is the fuel which is agricultural waste (rice husk, wood, etc.) segregation available in unnumbered tons around the world. It is very important to utilize this in the context of energy. It is also found that the sulphur content in the biomass is very less when compared with coal. The wood fuels contains very little ash (-1% or less), so increasing the ratio of wood in biomass coal blends can reduce the amount of ash that must be disposed. In biomass power plants, wood waste or other waste is burned to produce steam that runs a turbine to make electricity, or that provides heat to industries and homes. Fortunately, new technologies including pollution controls and combustion engineering have advanced to the point that any emissions from burning biomass in industrial facilities are generally less than emissions produced when using fossil fuels (coal, natural gas, oil), biomass is burned in a combustor or furnace to generate hot gas, which is fed into a boiler to generate steam, which is expanded through a steam turbine or steam engine to produce mechanical or electrical energy. In this paper were performed comparison of traditional synchronous generator with electromagnetic excitation and permanent magnet generator for autonomous gasoline installation system.

The paper presents the results of testing and research of the characteristics of a controlled autonomous magnetoelectric synchronous generator with a magnetic shunt. Structurally, the studied generator is a modified asynchronous machine in which the rotor is made with permanent magnets and an additional system in the form of a magnetic shunt. By adjusting the winding current of the magnetic shunt, the output voltage of the generator is regulated. The following characteristics were investigated: the no-load characteristic during operation with permanent magnets and when the winding current of the magnetic shunt changes with forward and reverse polarity. Also, the external characteristic for active and active-inductive loads; the control characteristic when the load current changes at a constant generator voltage. Analysis of the obtained characteristics makes it possible to determine the limits of regulation of the external characteristic, which is ≈40% relative to the main magnetic flux. The obtained regulation depth allows maintaining the stability of the external characteristic for power factors not exceeding 0.9, which is the usual passport value for autonomous power plants based on synchronous generators. Comparison of the data of research conducted on the experimental setup shows sufficient convergence for engineering and practical tasks. The maximum quantitative difference is 9.3%, which suggests the adequacy of the previously developed mathematical model. The control characteristic, constructed experimentally at constant generator voltage, is the control law of the magnetic shunt winding for the studied generator. The investigated version of a synchronous generator with a magnetic shunt should be used for autonomous power plants, renewable energy systems, and autonomous power supply systems.

In this paper a problem of using audiovisual mass media in political activity is investigated. The authors focus on the advantages of audiovisual media over print one: easier accessibility for consumers, a impact on their subconscious, much faster delivery of information messages to the public. These features of audiovisual media have led to their widespread use in politics, which has made political activity more effective. The main conclusions of this paper are that audiovisual media began to be used in politics shortly after their emergence. In accordance with the main stages of development of audiovisual media: cinema, television, the Internet — there was an improvement in technology for their use in politics. At the stage of cinema, anti-democratic (totalitarian) forces acquired a leading role in the use of audiovisual media, which began to use them as an effective means of political propaganda. At the stage of television, the primacy shifts to democracy, which was due to the pluralistic nature of democratic systems, in which the acquisition of power is due to free and competitive elections. At the stage of the Internet, when a large mass of ordinary citizens have the opportunity to publish their political views, opinions, projects in the electronic network, there are two mutually exclusive trends: autocratic regimes limit their citizens' access to the world information space, but at the same time try to destructive influence on the democratic world. The authors emphasize that this article is only their first attempt to outline the main directions of research on the impact of audiovisual media on the development of political activity. Due to the limited volume of this publication, some aspects of the problem were not reflected, which are planned to be covered in future publications.

This paper is devoted to elucidating the interdependence between freedom of the press and democracy. The author emphasizes that just as modern democracy is impossible without a free press, so freedom of the press is a phantom phenomenon in autocratic regimes, and draws attention to two aspects of this problem: the role of the media in ensuring transparency of political elections and government control. He criticizes the understanding of press freedom as an absolute phenomenon and emphasizes that the institution of the press even in today's most democratic societies experiences various external (from governments and oligarchy) and internal (from media owners and editors) pressures that affect its activities. However, the multiparty system in a democracy requires the publication in the press of different positions and views, as different publications give their sympathy to different political forces, both ruling and opposition. Political pluralism gives birth to the phenomenon of objectivity of the information field. Publication of different positions, different points of view on current social issues, allows consumers of media information to compare them and draw their own conclusions on this basis. While arguing that freedom of the press is a relative concept, the author notes that in a democracy it may be restricted in the interests of national security, territorial integrity or public order in order to prevent riots or crimes, to protect public health, to protect reputation or the rights of others, to prevent the disclosure of information obtained in confidence, or to maintain the authority and impartiality of justice. However, this restriction must meet three conditions: it must be strictly in accordance with the law, have just and legitimate goals, and be necessary and adequate to achieve such goals.

This paper is devoted to the analysis of the role of governmental and non-governmental mass media in the functioning of public relations. The actuality of this theme is due to the problem of the formation of civil society in the new democracies. The aim of this publication is functional comparison of governmental and non-governmental mass media, and coverage of their functions in the context of interaction between the state and civil society. The methodology of this study is based on a comparative analysis of the social functionality of governmental and non-governmental media. The authors distinguish the main differences between governmental and non-governmental media, which are the differences between their founders, forms of ownership, sources of funding, editorial control and the implementation of social functions. They note that governmental and non-governmental media perform the same social functions, the most important of which are informational, communication, adaptation, agitation, mobilization, integration, control. However, in governmental and non-governmental media, these functions have different connotations. Governmental media operate in the information space of the country from the standpoint of the state, while non-governmental ones operate from the standpoint of civil society. Instead, the activity of governmental media is aimed at civil society, and the activity of non-governmental media is aimed at the state. The main aim of governmental media activity is to form socio-political support for authorities. The most important tasks of the non-governmental media are to bring to the attention of the authorities the problems that concern civil society, to inform the government about the needs, interests and desires of citizens. The relationship between governmental and non-governmental media is determined by the nature of the political regime. The more democratic political regimes cause the greater role of non-governmental media in regulating of public relations. The novelty of this work is that its authors try not to oppose the functions of governmental and non-governmental media, as was the case in previous publications on this topic, but to show the specifics implementation by them of the same functions. The practical significance of the work is due to the fact that it opens a new direction in the study of the problem of interaction of the media with the state and civil society.

The object of this study is electromechanical processes in an autonomous wind power plant with a magnetoelectrical generator. Under actual conditions, the wind speed is constantly changing. The wind turbine works as efficiently as possible only at the rated value of wind speed. When the wind speed changes, the efficiency of converting mechanical wind energy into electrical energy decreases. Controlling the power of the electric generator when the wind speed changes is a relevant scientific and technical task. A maximum power selection control system based on the parameters of an experimental sample of a synchronous magnetoelectric generator has been designed and investigated. A feature of the synthesized control system is that it was developed on the basis of the concept of inverse dynamics problems in combination with minimization of local functionals of instantaneous energy values. The control law provides weak sensitivity to parametric perturbations of the object and carries out dynamic decomposition of the interdependent nonlinear system, which predetermines its practical implementation. Transient processes of the power, voltage, and current of the stator, as well as the voltage and excitation current were established when the wind speed changes from 3 to 8m/s, as well as when the active electrical resistance of the load changes. The results of this study confirm the effectiveness of the maximum power take-off control system when wind speed and load change. When the wind speed changes within 3–8m/s and the load by 50%, the efficiency of converting mechanical wind energy into electrical energy increases by 15–40% compared to the traditional magnetoelectric system. The findings of the current study are recommended for practical use in autonomous power plants based on wind turbines with generators with permanent magnets.

The article analyzes the issues of regularity of development of social relations in the field of labor, and its legal support, highlights the law to work as a subjective right of a person, which creates, first of all, a mechanism for implementing, protecting and protecting the entire system of workers' rights. Freedom of labor should include the possibility for a person to engage in or not to engage in work, and if engaged, to choose freely. Attention is paid to ensuring that everyone enters into labor relations without discrimination to realize their abilities, and regardless of the grounds of labor relations, the state is obliged to create effective organizational and legal mechanisms for labor relations at the level of law, and the absence of such mechanisms employee freedoms. All labor relations should be based on the principles of social protection and equality for all enterprises, institutions, organizations, regardless of ownership, type of activity and industry affiliation, as well as persons working under an employment contract, which, in particular, should be reflected in establishing an exhaustive list of conditions. and the grounds for termination of such relations. Since we are talking about the law to work as a subjective law, as well as legitimate interests arising from this law, the object of protection are subjective laws and legitimate interests enshrined in labor law, which reflect the diversity of labor activities of the parties to the employment relationship. This, in turn, creates a mechanism for the implementation, protection and defense of the entire system of laws of both employees and employers. It is their combination is the main content of the entire system of labor protection in the process of employment, in the process of employment and its termination. Modern conditions in which the state is recognized as social and democratic require that the social approach in law, including labor law, gradually become decisive. The personality of the employee in modern business conditions should play a significant role, relations in the field of hired labor should be reoriented in the social direction, in favor of the employee. Emphasis is placed on the fact that labor policy should be aimed at the active use of legal standards and their further development, taking into account the accumulated legal experience and modern business conditions, which, above all, should be focused on decent work and adequate pay.

In the article there were presented the results of the research of medical physical and chemical qualities of domestic remedy “Decamethoxin®” (Decamethoxinum®), produced by Pilot Manufacturing of Institute of Organic Chemistry of National Academy of Sciences of Ukraine. It was found, that “Decamethoxin®” (DC M) remedy complies physical and chemical requirements (color, transmittance, specific optical rotation, entertainable amount of impurities, sulfate ash, heavy metals, residual amounts of organic substances, the loss of the weight no more than 4.5 %, while desiccation), established for patented exemplar of decamethoxin®. Kinetics of DCM® elution into water medium from medical materials was proved. There was found, that elution of DCM® proceeded long (for 15 days), it was like programmed controlled process, occurring due to diffusion and kinetic mechanisms.