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An optimization approach to finding roots of systems of nonlinear equations

Khamisov O., Kolosnitsyn A. An optimization approach to finding roots of systems of nonlinear equations // IOP Conference Series: Materials Science and Engineering. Vol.537. No.4. ID: 042007. 2019. DOI: 10.1088/1757-899X/537/4/042007 We describe and test an approach to finding roots ...

Теги: optimization , computational experiment , local search techniques , nonconvex optimization problem , optimization approach , optimization problems , stationary points , system of nonlinear equations , systems
Раздел: ИСЭМ СО РАН
Integration of the storage battery categorization process into the task of optimizing the equipment of stand7alone energy systems with renewable energy sources [ИНТЕГРAЦИЯ ПРОЦЕCCA КAТЕГОРИЗAЦИИ ЭЛЕКРОХИМИЧЕCКИХ НAКОПИТЕЛЕЙ ЭНЕРГИИ В ЗAДAЧУ ОПТИМИЗAЦИИ CО

... relationship between generation equipment and the total storage battery capacity. An analysis of the research findings was made, followed by ap/ propriate conclusions, their visual representation and assessment of their reliability and potential use in optimization/focused research on stand/alone energy systems. © 2019 Tomsk Polytechnic University, Publishing House. All rights reserved. входит

Теги: battery storage categorization , battery storage degradation , optimization , renewable energy sources , system studies
Раздел: ИСЭМ СО РАН
Unified heat supply organization: Mathematical modeling and calculation

Penkovskii A., Stennikov V., Postnikov I. Unified heat supply organization: Mathematical modeling and calculation // Energy Procedia. Vol.158. 2019. P.3439-3444. DOI: 10.1016/j.egypro.2019.01.930 Organizational model of the heat energy market on a unified heat supply organization is considered. An equilibrium mathematical model is proposed for the liberalized tariff setting conditions based on a microeconomic monopolistic market model. This mathematical model allows for taking into account energy...

Теги: equilibrium , heat market , heat supply system , liberalization , monopoly , optimization , commerce , phase equilibria , engineering constraints , heat supply systems , modeling and calculations , monopolistic markets , organizational modeling
Раздел: ИСЭМ СО РАН
Investigating the efficiency of a steam-turbine heating plant with a back-pressure steam turbine and waste-heat recovery

..., with waste heat recovery. The mathematical model of а steam-turbine heating plant has been developed to perform one design calculation in the nominal mode and several verification calculations in characteristic modes with different thermal loads. Optimization calculations of the unit were carried out for two regions with different climatic conditions and different fuel prices. The optimal design parameters of the equipment, the parameters of the working fluid and coolants at all points of the ...

Теги: steam-turbine heating plant , mathematical modeling , optimization , efficiency of heat power equipment , steam turbine with back pressure , waste-heat recovery
Раздел: ИСЭМ СО РАН
Power Losses Minimization in Radial Distribution Networks by Capacitor Allocation Using Hybrid Evolutionary Computation Technique

... research presents a framework to solve the shunt capacitors' optimal allocation and sizing problem in radial distribution networks (RDNs) by a hybrid algorithm, named as Differential Evolution Cuckoo Search Algorithm (DECSA) which combines two efficient optimization methods, namely, Differential Evolution (DE) and Cuckoo Search algorithm (CSA), together. Loss sensitivity factor (LSF) is employed to determine the preferred capacitors' installation positions. The hybrid algorithm DECSA is developed to ...

Теги: cuckoo search , differential evolution , radial distribution networks evolutionary algorithms , shunt capacitors , electric load flow , learning algorithms , optimization , reactive power , cuckoo search algorithms , cuckoo searches , evolutionary computation techn
Раздел: ИСЭМ СО РАН
Модифицированный метод динамического программирования для оптимизации гидравлических режимов распределительных тепловых сетей

Луценко А.В., Новицкий Н.Н. Модифицированный метод динамического программирования для оптимизации гидравлических режимов распределительных тепловых сетей // Вычислительные технологии. Т.23. №6. 2018. C.47-63. DOI: 10.25743/ICT.2018.23.6.006 Предложена оригинальная модификация метода динамического программирования, предназначенная для оптимизации гидравлических режимов распределительных тепловых сетей, опирающаяся на специальные свойства задачи. Продемонстрировано, что предложенная модификация метода...

Теги: теплоснабжающие системы , распределительные тепловые сети , гидравлический режим , оптимизация , heat supply systems , distribution heating networks , hydraulic mode , optimization
Раздел: ИСЭМ СО РАН
Cyber Security-Oriented Smart Grid State Estimation

Kolosok I., Gurina L. Cyber Security-Oriented Smart Grid State Estimation // E3S Web of Conferences. Vol.69. ID: 02004. 2018. DOI: 10.1051/e3sconf/20186902004 Development of Smart Grid involves the introduction of Wide Area Measurement System (WAMS), which provides the use of information, computing and digital technologies for measuring, transmitting and processing operating parameters when solving control problems. In this regard, the increased vulnerability to cyberattacks of the control system...

Теги: electric power system measurement , electric power system planning , electric power systems , electric power transmission networks , estimation , information use , network security , optimization , smart powe
Раздел: ИСЭМ СО РАН
Combined generation and transmission capacity market model for dispersed systems

... (print): 9781538614884. DOI: 10.1109/EEM.2018.8469766 The paper develops a capacity market model for dispersed electric power systems (EPS) characterized by long distances and low transfer capabilities of transmission lines. The model includes discrete optimization of an optimal generation set considering network limitations. Potential competition and generation development are integrated into the model. Forming investment price signals is discussed as far as the capacity price is not calculated by ...

Теги: capacity market , dispersed electric power systems , generation expansion , transmission expansion , commerce , electric lines , electric power systems , electric power transmission , expansion , optimization , power markets , capacity markets , discrete optimization
Раздел: ИСЭМ СО РАН
Search for a market equilibrium of Cournot-Nash in the competitive heat market

Penkovskii A., Stennikov V., Mednikova E., Postnikov I. Search for a market equilibrium of Cournot-Nash in the competitive heat market // Energy. Vol.161. 2018. P.193-201. DOI: 10.1016/j.energy.2018.07.086 The paper is concerned with a «Single-buyer » heat market model. A mathematical model is developed. In this model, optimal distribution of heating load among heat sources, that corresponds to the Nash equilibrium is determined based on the Cournot approach. The mathematical model makes it possible...

Теги: cournot-nash equilibrium , heat market , heat supply system , optimization , «single buyer» model
Раздел: ИСЭМ СО РАН
Mathematical Modeling of the Heat Energy Market on a Single Heat Supplier Basis

Penkovskii A.V., Stennikov V.A. Mathematical Modeling of the Heat Energy Market on a Single Heat Supplier Basis // Thermal Engineering . Vol.65. No.7. 2018. P.443-452. DOI: 10.1134/S0040601518070078 Organizational models of the heat energy market on a Single Heat Supplier basis (SHS) operating in free (liberalized) and regulated tariff environments are considered. An equilibrium mathematical model is proposed for the liberalized tariff setting conditions based on a microeconomic monopolistic market...

Теги: heat energy market , heat supply , mathematical modeling , optimization , single heat supplier , circuit theory , commerce , costs , hydraulic equipment , hydraulic machinery , iterative methods , mathematical models , solar buildings , economic characteristics , engin
Раздел: ИСЭМ СО РАН


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