Browsing by Author "Narmania, Davit"

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    Actual matter of public enterprises’ management
    (Ivane Javakhishvili Tbilisi State University Press, 2018) Narmania, Davit
    State/public owned enterprises are important entities in public service delivery. They differ significantly from the private enterprises. State owned enterprises, as a public service providers, need a specific management approach. Various indicators and tools are used to assess the efficiency such enterprises. Efficient management means efficiency using of managerial functions (planning, organization, motivation, leading and control). Additionally, instruments and functional subsystems (HR, communication, marketing, financial and operations management) for those function realization need separate study. There are often required transparency and accountability by public enterprises, as well as corporate social responsibility (CSR)
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    Covid 19 pandemic influence on construction business in Georgia
    (Ivane Javakhishvili Tbilisi State University Press, 2021) Narmania, Davit; Zurashvili, Nino
    Construction business is essential business field in many countries. The business field shows development and sustainability of the economy of the country. Developed countries are trying to ensure the environment that would be convenient for construction business entities. Covid 19 pandemic had very bad influence on the economies of the countries in the world. Many companies failed and stopped functioning. Many jobs were lost because of the limitation of Covid 19 pandemic in the whole world. In Georgia because of Covid 19 pandemic government set limitations and rules to avoid spreading the virus. This had negative influence on the economy. Many jobs were lost. Many companies has stopped functioning. Also, construction business had difficulties because of the pandemic limitations.
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    Defined contribution pension system and management challenges in Georgia
    (Ivane Javakhishvili Tbilisi State University Press, 2019) Narmania, Davit; Chokheli, Eka; Keshelashvili, Giuli; Kharkheli, Manana; Sardlishvili, Nino; Topuria, Beka; Iluridze, Gvanca
    The work provides discussion of the defined contribution pension reform process. In particular, it studies the process of modification of the existing social pension system and formation of the defined contribution pension system, as well as the European experience of pension systems reformation and expected risks of defined contribution pension system. It analyses the process of defined contribution pension system management and public attitude towards these processes.
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    The improvement ways of SCADA system management in power energy
    (Ivane Javakhishvili Tbilisi State University Press, 2023) Narmania, Davit; Seturidze, Rusudan; Maghradze, Murtaz; Davitaia, Shorena; Machitidze, Mikheil
    The development of technologies in the world has played a big role in the improvement of energy management. The level of development of electric energy has a great influence on the dynamics and arrangement of the country’s productive forces, creating a necessary prerequisite for raising the standard of living of the population and improving working conditions. The level of the national economy and the energy supply of the population largely depends on the energy industry. Its development rates and scales have a decisive influence on the final results of the country’s economic development. Supervisory Control and Data Acquisition (SCADA) is an important and relevant component of the electric power industry, which provides real-time monitoring and management of electricity production, transmission and distribution. The main purpose of the SCADA system is the management and operation of technological automated processes. SCADA system includes hardware and software components. The equipment collects data from the transformers on the power plant and provides them to the field controllers, which in turn transmit the data to the first and second level systems, And they, in turn, process and display information through a corresponding graphical interface on the video wall or at the operator’s workstation. SCADA systems also record the status and corresponding changes of all processes occurring in the power system. The control functions of the SCADA system ensure remote monitoring and management of the power plant and substation by the dispatcher, sending the necessary parameters from the control panel to the devices and relays in the station, to carry out data collection and their analysis for management decisions. “Georgian State Electrosystem” is one of the leading companies in the implementation of modern information systems. The function of GSE is to maintain system stability and reliability in both short and long term periods. There was implemented in GSE the project of updating software and hardware components of Supervisory Control and Data Acquisition system on the basis of SINAUT SPECTRUM 7 (SIEMENS), which was due to the rapid development of the electrical network, what followed was the addition of new energy facilities to the system and the correspondingly increased amount of incoming data. The old hardware was not designed for a such large load and therefore caused overloading of servers/hardware, which, in turn, was a hindering factor for efective dispatch management and control. Within the framework of the scientific research, the significance of the installation of the SCADA system in the electric power industry and the analysis of its development stages were highlighted. The introduction of the SCADA system contributed to the development of dispatch management and control, which reduced the number of technological accidents and made the energy sector stable in Georgia. The introduction of the substation management system ensured full local control of the substations. The software and hardware upgrade of the SCADA system facilitated complete remote monitoring and management of power stations and substations. Based on the above scientific research, the following recommendations were developed: • In the Automatic Generation Control module of the SCADA system in Georgian State Electrosystem, it is recommended to integrate several regulatory power plants, which will ensure the stability of the power system, increase overflow control, add more stability and reduce electricity overflow losses; • For the stable functioning of dispatch management and control, it is recommended to establish a backup dispatch center, which will be located at a remote location and will work in parallel with the central dispatch center. Accordingly, in the event of faults in the communication network of the SCADA system, there will be no complete loss of access to energy facilities, which will add more stability to the electric energy of Georgia and prevent the occurrence of emergency situations. • It is recommended to widely implement energy saving systems, through which it is possible to control the imbalance of electricity. If the mentioned recommendations are taken into consideration, the energy system of Georgia will become stable and efective. This scientific research will be useful for the energy companies where the SCADA system is introduced or implemented.
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    Ways of improving the management of the supervisory control and data acquisition (SCADA) automated system in electric power
    (IJDR, 2023) Seturidze, Rusudan; Narmania, Davit; Maghradze, Murtaz; Davitaia, Shorena; Machitidze, Mikheil
    The purpose of the scientific paper is to analyze the issues of improving the management of the supervisory control and data acquisition (SCADA) automated system in electric power, which includes a comparative analysis of the development stages of the SCADA system, the use of cloud technologies, the introduction of modern digital applications that serve for real-time recording, control, monitoring of energy objects and others. It ensures significant development of the field of electric energy. Supervisory control and data acquisition (SCADA) automated system improvement methods in electric power within the framework of the research project, the issues of supervisory control and data acquisition (SCADA) automated system (SCADA) management improvement issues were analyzed and research questions were developed. 101 respondents were interviewed. The data was collected electronically, through an online survey of employees working in different structural units of the Georgian state electro system, who were users of the SCADA system. The survey will study the issues of improving the management of the supervisory control and data acquisition (SCADA) automated system in electric power, which ensures the reduction of the number of technological accidents, the sustainability of the sector, the improvement of the quality of management and the speed of work in electric power. If the recommendations obtained as a result of the research are implemented, the energy system will become more stable and efficient. The mentioned study will be useful for the electric power companies of different countries where SCADA system is introduced or implemented. The article was written within the framework of the Ivane Javakhishvili Tbilisi State University research project "Ways to improve the supervisory control and data acquisition (SCADA) automated system in electric power". A comparative analysis of the development stages of the SCADA system in terms of each component of the system is discussed in the scientific paper. The implementation of the research results will affect the development of the professionalism of SCADA users, as well as provide simplification, speed and high quality of the work of the management link of the personnel. Accordingly, this will contribute to the improvement of the field of electric energy.