24 results on '"Shakirov, Vladislav"'
Search Results
2. Research on wire icing simulation technology considering the weights of meteorological elements.
- Author
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Zhou, Fangrong, Huai, Xiaowei, Yan, Pengcheng, Jiang, Xingliang, Pan, Hao, Ma, Yi, Geng, Hao, Jin, Shuanglong, and Shakirov, Vladislav
- Subjects
EMERGENCY management ,WIND speed ,ATMOSPHERIC temperature ,HAZARD mitigation ,RELIABILITY in engineering ,WIRE ,DISASTER resilience - Abstract
Wire icing seriously threatens the safety and reliability of power systems. Strengthening the simulation study of icing thickness is crucial for disaster prevention and mitigation, as well as the adjustment of power system operation strategies. The meteorological elements, including air temperature, precipitation and wind speed, are the key factors affecting wire icing. In this study, the meteorological elements related to icing thickness are obtained by numerical models, and the relationship between these elements and icing thickness observations is established to develop a model for simulating icing thickness. The model is applied to study typical icing in Yunnan Province, China. The results indicate that the deviation of the simulated icing thickness is about 2 mm, smaller than that from the traditional model. Batch experiments demonstrate that the new model developed in this research is applicable to the vast majority of 238 observation stations in Yunnan Province for icing thickness simulation, and the method can yield lower simulation deviations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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3. Key defining features of establishing and operating industrial and citizen energy communities
- Author
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Popova Ekaterina, Tomin Nikita, Shakirov Vladislav, and Yang Dechang
- Subjects
Environmental sciences ,GE1-350 - Abstract
The aggregation of end-users who produce, consume, and exchange surplus energy within the borders of a shared geographical area manifests a new way of using renewable energy as represented by Energy Communities (EC). At that, both industrial and "residential" community microgrids can be such consumers, which act as a single controlled object in relation to the external power grid. The reasons and objectives of prosumers joining their forces to form an EC differ depending on their predominant type and nature (industrial enterprises, residential buildings, farms, etc.). These include consumers' need for energy autonomy, lowering of otherwise high electricity tariffs, improvement of energy supply resilience and reliability, minimization of urban pollutant emissions, more efficient use of renewable energy sources, etc. This study relies on a general methodology developed by the authors to assess key defining features of the establishing and operating ECs of industrial and community microgrids serving residential loads. We demonstrate how methods of multi-criteria decisionmaking and artificial intelligence can take into account these features in an efficient way so as to maximize the local and system-wide effects of different types of ECs.
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- 2023
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4. Systems studies on power supply diversification in Eastern areas of the Russian Arctic
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Ivanova, Irina, primary, Izhbuldin, Alexander, additional, Tuguzova, Tatiana, additional, and Shakirov, Vladislav, additional
- Published
- 2023
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5. Development of empirical solar radiation models with genetic algorithm and extended validation procedure.
- Author
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Shakirov, Vladislav, Ivanova, Irina, and Tuguzova, Tatyana
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SOLAR radiation ,GENETIC algorithms ,BACKGROUND radiation ,GLOBAL radiation ,DATABASES - Abstract
The strong dependence of the accuracy of empirical solar radiation models on natural and climatic conditions causes their diversity and ambiguity of choice. The paper proposes an approach to choosing two most accurate models from a variety of empirical models designed to estimate global and diffuse solar radiation over the entire territory based on data from several locations. The approach focuses on the improvement of the accuracy and adaptability of models to a variety of natural and climatic conditions. To improve the adaptability of models, their coefficients are determined using a genetic algorithm. In contrast to the least-squares method, the objective function is aimed at minimizing the maximum mean absolute error (MAE) in estimating solar radiation at locations. A new procedure for extended validation of empirical models is proposed to improve their accuracy. In addition to the standard validation based on estimates of global and diffuse radiation, the accuracy of direct solar radiation estimates obtained as the difference between models' estimates is checked. A numerical example is given for the Baikal natural territory. Based on the proposed approach, 18 empirical models are calibrated and the 2 most accurate models are selected. The maximum MAE in estimates of global, diffuse, and direct radiation for nine locations of the territory was 0.51, 0.57, and 0.6 MJ/m
2 day, respectively. The least-squares method of calibration yielded higher estimates of the maximum MAE: 0.64, 0.64, 0.88 MJ/m2 day. The estimates of the developed models are more accurate compared to those provided by ERA5 and NASA POWER databases. [ABSTRACT FROM AUTHOR]- Published
- 2023
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6. Development of empirical solar radiation models with genetic algorithm and extended validation procedure
- Author
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Shakirov, Vladislav, primary, Ivanova, Irina, additional, and Tuguzova, Tatyana, additional
- Published
- 2022
- Full Text
- View/download PDF
7. Multi-criteria placement and capacity selection of solar power plants in the 'Baikal-Khövsgöl' Cross-Border Recreation Area
- Author
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Ivanova Irina and Shakirov Vladislav
- Subjects
Environmental sciences ,GE1-350 - Abstract
The problem of power supply to remote consumers in the “Baikal-Khövsgöl” Cross-Border Recreation Area, associated with the high length and low reliability of power lines is discussed. The assessment of the modes of the power distribution grid showed that the introduction of new consumers in this territory will lead to unacceptable voltage deviations, even taking into account the installation of reactive power compensating devices. Since the area under consideration has a high solar energy potential, it is advisable to use distributed solar generation. The choice of locations and capacities of solar power plants is a multi-criteria optimization problem. Four criteria are proposed: total voltage deviation, total active power losses, reliability and capital costs for construction. An algorithm for multi-criteria optimizationis developed and implemented as a program in the MATLAB, which consists in sequential verification of the feasibility of installing additional power of solar power plants at the consumers of each of the substations under consideration. For each variant, the electric grid mode is assessed using the Power system analysis toolbox program. Solutions for the choice of locations and capacities of solar power plants are obtained, providing high scores by criteria in accordance with the given criteria importance coefficients.
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- 2020
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8. Siting and sizing of wind farms taking into account stochastic nature of generation
- Author
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Shakirov Vladislav, Kurbatsky Victor, Tomin Nikita, and Guliyev Huseyngulu
- Subjects
Environmental sciences ,GE1-350 - Abstract
The article deals with the problem of the negative impact of wind farms stochastic generation on power grid. One of the ways to reduce the stochasticity of the wind farms generation is their geographically distributed siting. A technique for sizing and distributed siting of wind farms from the standpoint of the influence on the variability of the total generated power is proposed. Modeling of wind power generation with hourly detailing is carried out using the developed Wind-MCA software based on data from archives of long-term observations of ground-based weather stations. The optimal distribution of wind turbines in potential locations is based on a genetic algorithm. The objective function is the coefficient of variation of the power generated by all wind farms in the sites under consideration, depending on the number of wind turbines in their composition. The genetic algorithm is implemented using the built-in MATLAB function. The proposed technique is applied to assess the capacity options and sites for wind farms in the Zabaykalsky Krai. The solution providing the minimum value of the coefficient of variation of the wind farms generated power and high value of the wind farms capacity utilization factor has been obtained.
- Published
- 2020
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9. Decision Making Support for Selecting Structure of Generating Capacities at Development of Local Power Supply Systems
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Nefedov Alexander and Shakirov Vladislav
- Subjects
Environmental sciences ,GE1-350 - Abstract
This paper considers the problem of multi-criteria option selection for the purpose of developing generating capacities for local power supply systems. The authors suggest a 2-stage method of multi-criteria analysis. At the 1st stage one conducts a multi-criteria selection of the most prospective power generation technology. At the 2nd stage one conducts a multi-criteria assessment of options for power station capacity ratio on the basis of the selected efficient technology of power generation. At the first stage the authors suggest a modified method of hierarchy analysis allowing for the decrease in the number of requests to a decision-maker (DM). At the second stage the authors use the modified method TOPSIS with the application of value functions for calculating non-linear change of the DM preferences in relation to the assessment of options by the criteria.
- Published
- 2019
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10. Two-step procedure for multi-criteria choice of generating-capacity structure in remote areas
- Author
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Nefedov Aleksandr and Shakirov Vladislav
- Subjects
Environmental sciences ,GE1-350 - Abstract
The paper dwells upon the problem of multi-criteria choice of ways to develop generating capacities to supply power to remote consumers. We herein propose a two-step multi-criteria analysis method: choosing promising power-generation technology first, and then specifying the generating-capacity structure. The paper describes the structure of the proposed multi-criteria methods: the interval TOPSIS method for Step 1; for Step 2, an upgraded analytic hierarchy process based on identifying the structure of the decision maker’s preferences. We demonstrate the use of this method with evidence from the Penzhinsky District, Kamchatka Krai. Thermal power plants, hydroelectric power plants, diesel power plants, as well as solar and wind power are analyzed as power sources. Step 1 includes: analyzing the potential power-supply loads in a specific area; formulating alternative power-generation technology; formulating goals and criteria; criterion-based evaluation of alternative options using objective and subjective models; multi-criteria evaluation of alternatives; analyzing the sensitivity of results and the selection of promising technology. Step 2 includes: formulating goals and criteria on the basis of the selected power-generation technologies; formulating the available alternatives; criterion-based evaluation of alternatives; multi-criteria evaluation and final decision-making.
- Published
- 2019
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11. Methodical approach to the estimation of possible energy production by wind and solar power plants using weather station data
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Shakirov Vladislav
- Subjects
Environmental sciences ,GE1-350 - Abstract
The expediency of using several sources of information on climate factors for estimating the potential of wind and solar energy is substantiated. Specific features of the methodology and developed software for estimating the generation of energy by wind power plants based on weather stations open access data are considered. The possibility of taking into account the results of aerodynamic modeling of the flow of the terrain by the wind flow is realized. The methodology is implemented in the form of a computer program called Wind-MCA. It includes a module for analyzing wind power potential, a module for analyzing wind turbines, an economic analysis module, and a multi-criteria analysis module. Specific features of the methodology and developed software for estimating the generation of energy by solar power plants based on data on the transparency of the atmosphere, temperature and cloudiness are considered. The technique is implemented in the form of a computer program called Sun-MCA. The estimation of the wind energy and solar energy potential of several settlements in the central zone of the Baikal region is carried out taking into account the climate change in the region.
- Published
- 2019
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12. An analysis of wind and solar power variability to assess its implications for power grid
- Author
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Shakirov Vladislav
- Subjects
Physics ,QC1-999 - Abstract
The paper discusses the problem of parallel operation of wind and solar power plants with the power system associated with the influence of power fluctuations on the power quality and stability. A brief assessment of the prospects for the commissioning of the wind and solar power plants in Russia and a description of the associated negative impacts on the power system is given. A methodology for assessing the possible energy production of wind and solar power plants using raw data from weather stations is presented. Based on the methodology, an assessment of some regions of Russia in relation to the variability of wind speed and cloudiness is made. The wind power duration curves are given. An analysis of possible deviations of solar power under the influence of cloudiness is carried out. The effect of geographical aggregation of wind or solar power output to increase the guaranteed power generation and reduce the negative impact on the stability of the energy system is shown.
- Published
- 2019
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13. Multicriteria assessment of biomass gasification‐based hybrid energy systems in remote areas
- Author
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Shakirov, Vladislav, primary and Kozlov, Alexander, additional
- Published
- 2022
- Full Text
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14. Systems studies on power supply diversification in Eastern areas of the Russian Arctic.
- Author
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Ivanova, Irina, Izhbuldin, Alexander, Tuguzova, Tatiana, Shakirov, Vladislav, Voropai, Nikolai, Stennikov, Valery, and Senderov, Sergey
- Subjects
LIQUEFIED natural gas prices ,DIESEL fuels ,COAL gas - Abstract
The paper addresses the energy supply problems in the eastern areas of the Russian Arctic. The sequence and relations of the main stages of research focusing on the comprehensive substantiation of feasible energy technologies in the areas with off-grid power supply are indicated. The description of the model tools developed by the authors and the structure of the information-analytical system are given. Findings indicate the conditions for the competitiveness of centralized and decentralized power supply and competitive prices for liquefied natural gas to replace coal, crude oil, and diesel fuel. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
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15. Technical and economic model of an autonomous complex for production of «green» hydrogen and its testing on the example of Mongolia and Japan
- Author
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Popov, Sergei Petrovich, Shakirov, Vladislav Albertovich, Kolosnitsyn, Anton Vasilyevich, Maksakova, Daria Vladimirovna, and Baldynov, Oleg Alexandrovich
- Subjects
Materials Science (miscellaneous) ,математическое программирование ,Management, Monitoring, Policy and Law ,Geotechnical Engineering and Engineering Geology ,возобновляемые источники энергии ,технико-экономические модели ,estimating costs ,liquefied hydrogen ,Fuel Technology ,водородные технологии ,technical and economic model ,солнечная энергия ,ветровая энергия ,автономные комплексы ,Economic Geology ,сжиженный водород ,стоимостные оценки ,renewable energy sources ,Waste Management and Disposal ,hydrogen technologies - Abstract
Актуальность. Представлена технико-экономическая модель комплекса по производству сжиженного водорода с энергоснабжением исключительно от возобновляемых источников энергии. Модель позволяет проводить сравнение технико-экономических показателей производства «зелёного» сжиженного водорода в различных локациях, учитывая их природно-климатические и технико-экономические условия. Особенностью предлагаемой модели является рассмотрение основных технологических процессов производства, преобразования и хранения водорода с учетом годового почасового профиля возможной генерации энергии возобновляемыми источниками и графика отгрузки сжиженного водорода в качестве товарной продукции. Использование модели актуально на стадии предпроектных исследований по созданию водородных производств в регионах, имеющих высокий потенциал ВИЭ, но при этом удаленных от электроэнергетической инфраструктуры; позволит повысить обоснованность оценок для принятия инвестиционных решений. Цель: разработать технико-экономическую модель такого комплекса и осуществить проверку её работоспособности на примере оценки нормированной стоимости производства «зелёного» сжиженного водорода для выбранных локаций в Монголии и Японии. Объекты: автономный комплекс по производству «зелёного» водорода. Методы. Основу модели составляет оптимизационная задача математического программирования, решение которой позволяет определить уровень и структуру затрат на производство сжиженного водорода с использованием солнечной и ветровой энергии. Результаты. Для проверки работоспособности модели были получены сравнительные оценки нормированной стоимости производства товарной продукции - 10 тыс. т/год сжиженного «зелёного» водорода для локаций в Монголии (восточное побережье оз. Хубсугул) и Японии (прибрежные районы префектуры Ямагата), составляющие соответственно 10,8 и 13,4 $ /кг. The relevance. The paper presents a technical and economic model of a liquefied hydrogen production complex supplied only by renewable energy. The model compares technical and economic indicators of «green» liquefied hydrogen production in different locations subject to their climate, technical and economic conditions. The unique characteristic of the proposed model is that it considers the main technological processes for hydrogen production, conversion and storage, taking into account the annual hourly profile of possible renewable energy generation and shipping schedule of liquefied hydrogen as a commercial output. Employing the model will be relevant at the stage of pre-feasibility studies devoted to the creation of hydrogen energy productions in regions with high renewable energy potentials and remote from power infrastructure and allow enhancing reasonableness of estimations when taking investment decisions. The main aim: to develop a technical and economic model of such a complex and to test it by estimating the levelized cost of «green» liquid hydrogen for selected locations in Mongolia and Japan. Object: the autonomous complex for production of «green» hydrogen. Methods. The model is based on an optimization problem that determines the level and structure of costs born to produce liquefied hydrogen using solar and wind energy. Results. For verification of the model the comparative estimations for production of 10000 tonnes per year of the liquefied «green» hydrogen were calculated. The costs for locations in Mongolia (east coast of Lake Hubsugul) and Japan (coastal areas of Yamagata Prefecture) amount to $10,8 per kg and $13,4 per kg, respectively.
- Published
- 2022
16. Multicriteria assessment of biomass gasification-based hybrid energy systems in remote areas.
- Author
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Shakirov, Vladislav and Kozlov, Alexander
- Subjects
- *
RENEWABLE energy sources , *BIOMASS , *DIESEL fuels , *BIOMASS gasification , *SOFTWARE maintenance , *MULTIPLE criteria decision making , *OPERATING costs - Abstract
This study proposes an approach to multicriteria assessment of biomass gasification-based hybrid energy systems in remote areas using the modified SMARTS method. This approach involves comparing two groups of hybrid energy systems: those based on biomass gasification and those based on diesel generation, which is already widely used in remote areas. The hybrid energy system configurations are developed using the HOMER software in terms of the maintenance schedule of biomass gasifiers. Alternatives are compared according to the criteria of economic, technical, environmental and social efficiency. The proposed modification of the SMARTS method uses both crisp and interval weights of criteria and criteria estimates for decision making under uncertainty of the preferences and input data, especially in terms of initial capital and operating costs, feedstock and diesel fuel prices. The final choice of a hybrid energy system is based on the relative dominance indicator. Two case studies of isolated rural settlements show that biomass gasifiers when supplemented with diesel generation and other renewable energy sources are the best sustainable solution as compared with other feasible alternatives. These conclusions are robust to sufficiently significant changes in preferences and input data. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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17. Design and optimal energy management of community microgrids with flexible renewable energy sources
- Author
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Tomin, Nikita, primary, Shakirov, Vladislav, additional, Kozlov, Aleksander, additional, Sidorov, Denis, additional, Kurbatsky, Victor, additional, Rehtanz, Christian, additional, and Lora, Electo E.S., additional
- Published
- 2022
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18. Directions for Transition to Low-Carbon Energy in the Baikal-Khuvsgul Transboundary Territory: Background, Conditions, Effects
- Author
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Ivanova, Irina, primary, Shakirov, Vladislav, additional, Maysyuk, Elena, additional, and Ivanov, Roman, additional
- Published
- 2022
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19. ВЫБОР ТОПЛИВА ДЛЯ ТЕПЛОВЫХ ЭЛЕКТРОСТАНЦИЙ В РАЙОНАХ НОВОГО ОСВОЕНИЯ С УЧЕТОМ ФАКТОРА НЕОПРЕДЕЛЕННОСТИ
- Author
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Shakirov, Vladislav Albertovich
- Subjects
уголь ,Operations research ,Computer science ,Materials Science (miscellaneous) ,media_common.quotation_subject ,Population ,Fuzzy set ,thermal power plants ,Thermal power station ,Analytic hierarchy process ,ComputerApplications_COMPUTERSINOTHERSYSTEMS ,Context (language use) ,Management, Monitoring, Policy and Law ,тепловые электростанции ,uncertainty of the initial information ,Production (economics) ,Relevance (information retrieval) ,многокритериальный выбор ,education ,Waste Management and Disposal ,multi-criteria choice ,media_common ,coal ,education.field_of_study ,принятие решений ,неопределенность ,Ambiguity ,Geotechnical Engineering and Engineering Geology ,топлива ,Fuel Technology ,интервальный анализ ,Economic Geology ,теория нечетких множеств ,fuel - Abstract
Актуальность исследования обусловлена трансформацией методологии обоснования развития энергетики от централизованного государственного планирования к новой парадигме многостороннего процесса принятия решений и создания механизмов их реализации в условиях многокритериальности, множественности несовпадающих интересов, неопределенности исходной информации и условий дальнейшего развития. Новые условия обоснования решений исследуются в разрезе строительства тепловых электростанций в удаленных районах нового освоения, где в качестве топлива рассматриваются местные энергоресурсы. Выбор топлива определяет экономические и технические показатели электростанций, их экологические и социальные воздействия. Для обоснования выбора топлива тепловых электростанций с позиций многочисленных критериев в условиях неопределенности исходной информации и будущих условий развития необходимо создание новых методических подходов. Цель: предложить методику многокритериального выбора топлива тепловой электростанции в районах нового освоения с учетом фактора неопределенности. Объекты: месторождения органического топлива в удаленных районах нового освоения. Методы: мультипликативный метод анализа иерархий, метод многокритериальной теории полезности, методы интервального анализа, методы теории нечетких множеств. Результаты. Проведен обзор современных методических подходов в задачах обоснования выбора топлива для электростанций. Предложена модификация метода мультипликативного анализа иерархий, которая позволяет учесть неопределенность исходной информации и неоднозначность предпочтений лица, принимающего решения, а также существенно снизить количество запросов информации. На основе модифицированного метода разработана методика многокритериального выбора топлива для тепловых электростанций в районах нового освоения. Ее применение рассмотрено на проблеме выбора угля в трех пунктах перспективного размещения тепловой электростанции в Омсукчанском и Северо-Эвенском районах Магаданской области. В качестве критериев сравнения альтернатив используются: стоимость топлива, ущерб от выброса загрязняющих веществ при сжигании топлива, обеспеченность запасами, условия освоения и добычи, воздействие выбросов при сжигании топлива на здоровье населения, обеспечение занятости местного населения. The relevance of the research is caused by the transformation of the methodology for substantiating the development of energy from centralized state planning to a new paradigm for multilateral decision-making and the creation of mechanisms for their implementation in terms of multi-criteria, multiplicity of conflicting interests, uncertainty of initial information and conditions for further development. New conditions for substantiating the decisions are considered in the context of the construction of thermal power plants in remote areas of new development, where local energy resources are considered as fuel. The choice of fuel determines the economic and technical indicators of power plants, their environmental and social impacts. In order to justify the choice of fuel for thermal power plants from the point of view of numerous criteria in the conditions of uncertainty of initial information and future development conditions, it is necessary to create new methodological approaches. The main aim of the research is to propose a methodology of multi-criteria fuel selection for a thermal power plant in the areas of new development taking into account the uncertainty factor. Objects: organic fuel deposits in remote areas of new development. Methods: multiplicative method of the analytic hierarchy process, method of multi-criteria utility theory, methods of interval analysis, methods of fuzzy set theory. Results. The author has carried out the review of modern methodological approaches in the problems of substantiation of the choice of fuel for power plants and proposed the modification of the method of the analytic hierarchy process. It allows taking into account the uncertainty of the source information and the ambiguity of preferences of decision makers, as well as significantly reducing the number of requests for information. On the basis of the modified method, the author developed the technique of multi-criteria selection of fuel for thermal power plants in the areas of new development. Its application is considered on the problem of coal selection in three points of perspective siting of thermal power plant in Omsukchansky and Severo-Evensky districts of Magadan region. The criteria used to compare the alternatives are: fuel cost, pollutant emissions from fuel combustion, fuel reserves, development and production conditions, the impact of fuel combustion emissions on the health of the population, employment of the local population.
- Published
- 2020
20. Distributed Siting of Wind Farms to Minimize Fluctuations in Generated Power
- Author
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Shakirov, Vladislav, primary, Tomin, Nikita, additional, and Kurbatsky, Victor, additional
- Published
- 2021
- Full Text
- View/download PDF
21. Development and Optimal Energy Management of Community Microgrids with Flexible Renewable Energy Sources
- Author
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Tomin, Nikita, primary, Shakirov, Vladislav, additional, Kozlov, Aleksander, additional, Sidorov, Denis, additional, Kurbatsky, Victor, additional, Rehtanz, Christian, additional, and Lora, Electo E. S., additional
- Published
- 2021
- Full Text
- View/download PDF
22. Siting and sizing of wind farms taking into account stochastic nature of generation.
- Author
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Voropai, N., Senderov, S., Michalevich, A., Guliev, H., Shakirov, Vladislav, Kurbatsky, Victor, Tomin, Nikita, and Guliyev, Huseyngulu
- Published
- 2020
- Full Text
- View/download PDF
23. An analysis of wind and solar power variability to assess its implications for power grid.
- Author
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Rehtanz, C., Voropai, N., and Shakirov, Vladislav
- Subjects
SOLAR energy ,WIND power plants ,ELECTRIC power distribution grids ,SOLAR power plants ,ELECTRIC power production - Abstract
The paper discusses the problem of parallel operation of wind and solar power plants with the power system associated with the influence of power fluctuations on the power quality and stability. A brief assessment of the prospects for the commissioning of the wind and solar power plants in Russia and a description of the associated negative impacts on the power system is given. A methodology for assessing the possible energy production of wind and solar power plants using raw data from weather stations is presented. Based on the methodology, an assessment of some regions of Russia in relation to the variability of wind speed and cloudiness is made. The wind power duration curves are given. An analysis of possible deviations of solar power under the influence of cloudiness is carried out. The effect of geographical aggregation of wind or solar power output to increase the guaranteed power generation and reduce the negative impact on the stability of the energy system is shown. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
24. Decision-Making Based on Multi-Attribute Value Theory Under Preference Uncertainty
- Author
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Shakirov, Vladislav, primary
- Published
- 2019
- Full Text
- View/download PDF
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