System Research in Energy最新文献

{"title":"Theoretical justification of the necessity of payment for capacity in IPS","authors":"B.A. Kostyukovskyi, T. Nechaieva","doi":"10.15407/srenergy2022.02.064","DOIUrl":"https://doi.org/10.15407/srenergy2022.02.064","url":null,"abstract":"One of the most important tasks to be solved in the context of the Integrated power systems (IPS) development is to ensure balance reliability. Its successful solution is possible only if the electricity market is financially balanced the sufficiency of the revenues of energy companies for running a business of electricity production and providing auxiliary services, as well as providing an opportunity for investors to justify the feasibility of implementing projects for the development of generation and the implementation of demand-driven management measures to ensure the IPS balance reliability. When the IPS works according to the rules of the liberalized electricity market, it is impossible to guarantee the owners of generating companies and demand-driven management systems a profit at the level at which they will consider their work on this market expedient in the absence of special mechanisms for providing relevant guarantees, for example, a \"green\" tariff for power plants on renewable energy sources. Сertainly, without the presence of such mechanisms, it is impossible to justify the feasibility of implementing investment projects for the development of generating capacities and the implementation of measures for managed demand management. This creates significant risks in terms of ensuring balance reliability requirements in the IPS, whose activity is regulated according to the rules of the liberalized electricity market, in the long term due to the possibility the occurrence of a general deficit of generation capacity or insufficient maneuverability of the IPS. The emergence of a deficit will be due to the lack of interest on the part of the owners of generating companies and demand-driven management systems in maintaining the generating units and corresponding systems in an affordable state, which do not bring sufficient profit, as well as due to the lack of investment in the construction of new capacities. Taking into account the above, the purpose of the performed studies, the main results of which are given in the article, was the scientific justification of the need to introduce capacity payment as a key prerequisite for ensuring the IPS balance reliability based on the analysis of their objective properties and features of the functioning of liberalized electricity markets, as well as the appropriate mechanisms for its implementation. Keywords: power system, electric power generation, electricity market, capacity payment, power system balancing reliability","PeriodicalId":307644,"journal":{"name":"System Research in Energy","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133509761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Consumption forecast of petroleum products in Ukraine by the main types of economic activity","authors":"O. Maliarenko","doi":"10.15407/srenergy2022.02.031","DOIUrl":"https://doi.org/10.15407/srenergy2022.02.031","url":null,"abstract":"The article presents a mathematical model of demand forecasting for petroleum products with a comprehensive method with the allocation of features of collection and preparation of initial data to forecast their consumption. The mathematical model allows you to predict the consumption of petroleum products in the country (Top-level) and types of economic activity (Down-level) for transport transportation and for transformation into electricity and heat. The purpose of the study is to calculate the prognosis of petroleum products for further compilation of the balance of petroleum products, clarification of methodological approaches to the formation of initial data and the predictive evaluation of the need for petroleum products in the energy sector, provided The expediency of forecasting the total consumption of petroleum products in the country and the enlarged economic activity is noted, since the structure of oil consumption changes significantly depending on the prices for its types and available vehicles. The normative method was used to forecast petroleum products at TOP and Down levels. The forecasts obtained at two levels at significant differences in the results were usually agreed by the vector method of Kulik. Since the form of statistical reporting by type of economic activity for 2020 is not provided by the State Statistics Committee, the initial data on the sectors of the economy were formed from the energy balance By 2040 at the levels of the country and types of economic activity for different structures of the economy: the base 2020 and the forecast. The structural and technological potentials of energy saving in the consumption of petroleum products have been evaluated. It is expected to increase the consumption of petroleum products in the energy sector to restore the country's economy during the post -war period. Keywords: forecast, consumption, petroleum products, economy structure, energy saving potential","PeriodicalId":307644,"journal":{"name":"System Research in Energy","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124116293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Software and information complex for district heat supply systems modeling","authors":"Viktor Denysov","doi":"10.15407/srenergy2022.01.038","DOIUrl":"https://doi.org/10.15407/srenergy2022.01.038","url":null,"abstract":"Software and information complex for modeling of the heat supply systems functioning, which allows ensuring the optimal selection of aggregates and their operation modes. It will ensure the production and redistribution of energy in accordance with the schedule of consumers. Simulation of optimized operating modes of a self-sufficient heat supply system for a cottage village based on local energy resources and with minimal use of external energy sources was performed. The use of the software and information complex made it possible to calculate the parameters that provide optimized coverage of the heat load schedule of the cottage village based on local energy resources. The simulation performed using the example of the predicted values of the installed thermal capacity of the power units and the actual ambient temperature schedule. The developed new software and information complex provides an opportunity for hourly simulation and research of optimal modes of operation of heat units of autonomous heat supply systems. In the developed software and information complex, a model of optimization of operating modes is applied, which belongs to the class of problems of optimal loading of generating capacities of power systems with the criterion of minimizing costs for production, accumulation and consumption of heat and electricity. An example of simulation results using the heat load schedule for the selected day of March 20, 2018 is given. The obtained results indicate a decrease in the specific cost of hourly heat supply with an increase in the part of thermal energy supplied at the expense of renewable energy sources, and accordingly, a decrease in the part of gas, and in the general case of any other generation based on fossil fuel technologies, in the total volume of heat supply. Thus, the effectiveness of the use of renewable energy sources based on local energy resources as part of the heat supply system of the cottage village confirmed. Keywords: autonomous heat supply, efficiency of renewable energy sources based on local energy resources","PeriodicalId":307644,"journal":{"name":"System Research in Energy","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128589745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}