scholarly journals 100 YEARS OF ELECTRIFICATION: HISTORICAL EXPERIENCE AND MODERN CHALLENGES

2020 ◽  
Vol 1 (3) ◽  
pp. 5-13
Author(s):  
Vladimir V. Avdanin
Keyword(s):  
Power System ◽  
Transmission Lines ◽  
Power Plants ◽  
Comparative Method ◽  
Electric Power System ◽  
Hydroelectric Power ◽  
Local Power ◽  
Middle Volga Region ◽  
General Plan

Basing on the principles of historicism and objective analysis the article examines the features and problems of implementing two state electrification plans: GOELRO plan adopted 100 years ago, under which the construction of local power plants in the Middle Volga region began, and the General Plan for the USSR Electrification, approved in 1932, which laid down the main solutions to radically redevelop the industry and agriculture of the region on the basis of using the sources of hydroelectric power, constructed on the Volga. In this regard, the historical and comparative method made it possible to highlight the main stages in creation and development of the power system of the Chuvash Republic, which since the mid 1950s has acted as a central a link in the country’s unified electric power system. The idea of creating energy hubs of the Volga Cascade, which in the years that followed provided the rise of industrial and agricultural production of the region, was based on the need for the priority development of the integrated power grid taking into account a strictly defined sequence of regional power plant construction, however, these aspects of implementing the electrification plans are not exampled in the domestic historical literature devoted to the reform of the energy industry. The article notes the pivotal role of scientific and technical cooperation between Leningrad and Cheboksary power engineers and instrument makers in solving the most complicated tasks in times of peace and during the war, it considers the contribution of Chuvash power engineers, who provided the construction and modernization of dozens of trunk transmission lines, which made it possible to fully implement the country’s electrification plan and to ensure energy security of the region.

scholarly journals Use of maneuverable properties of hydroelectric power plants and hydro-accumulating power plants for improving reliability and operating efficiency of electric power systems of commonwealth countries (using example of power plants of Russia and the Republic of Uzbekistan)

2020 ◽  
Vol 216 ◽  
pp. 01139
Author(s):  
Yu.S. Vasilyev ◽  
V.V. Elistratov ◽  
I.G. Kudryasheva ◽  
M.M. Mukhammadiyev ◽  
B.U. Urishev
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Electric Power System ◽  
Operating Efficiency ◽  
Hydroelectric Power ◽  
Current Increase ◽  
Pump Station

The possibilities of using shunting properties of HPP units, HAPS (Hydro-accumulating power system) for energy storage and redistribution, as well as Pump Station as a consumer of the regulator in night load dips to increase the reliability of the electric power system (EPS) in the conditions of the current increase in the share of non-nondestructive capacities in Russia and Uzbekistan and the implementation of programs for the development of renewable energy sources, primarily the construction of wind and solar power plants, were considered.

scholarly journals Development of an intelligent system for integrated management of hydroelectric cascade modes

2019 ◽  
Vol 124 ◽  
pp. 05019 ◽  
Author(s):  
A.G. Rusina ◽  
Dzh Kh Khudzhasaidov ◽  
O.V. Naumov ◽  
A.N. Gorlov
Keyword(s):  
Power System ◽  
Power Plants ◽  
Intelligent System ◽  
Integrated Management ◽  
Hydroelectric Station ◽  
Software Tool ◽  
Electric Power System ◽  
Hydroelectric Power ◽  
Operating Modes ◽  
Hydroelectric Power Plants

The paper deals with an isolated electric power system (EPS) based on hydroelectric power plants. The analysis of the existing methods and approaches for investigation of modes of EPS which comprise hydroelectric power plants is presented. A mathematical model of a hydroelectric station cascade has been developed, which allows taking into account the hydraulic connection during calculation of electrical modes. A software tool for optimization the operating modes of hydroelectric power plants as part of the power system was developed. It uses redistribution the load between hydraulic units both inside the station and between hydroelectric complexes of cascade hydroelectric stations. The task of modeling power consumption and load graphs of EPS with specific properties, based on the application of artificial intelligence methods, is considered.

scholarly journals Transient Impact Analysis of High Renewable Energy Sources Penetration According to the Future Korean Power Grid Scenario

2018 ◽  
Vol 10 (11) ◽  
pp. 4140 ◽  
Author(s):  
Seungchan Oh ◽  
Heewon Shin ◽  
Hwanhee Cho ◽  
Byongjun Lee
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Electric Power ◽  
Power Plants ◽  
Transient Stability ◽  
Impact Analysis ◽  
Renewable Energy Sources ◽  
Electric Power System ◽  
Energy Sources ◽  
The Impact

Efforts to reduce greenhouse gas emissions constitute a worldwide trend. According to this trend, there are many plans in place for the replacement of conventional electric power plants operating using fossil fuels with renewable energy sources (RESs). Owing to current needs to expand the RES penetration in accordance to a new National power system plan, the importance of RESs is increasing. The RES penetration imposes various impacts on the power system, including transient stability. Furthermore, the fact that they are distributed at multiple locations in the power system is also a factor which makes the transient impact analysis of RESs difficult. In this study, the transient impacts attributed to the penetration of RESs are analyzed and compared with the conventional Korean electric power system. To confirm the impact of the penetration of RESs on transient stability, the effect was analyzed based on a single machine equivalent (SIME) configuration. Simulations were conducted in accordance to the Korean power system by considering the anticipated RES penetration in 2030. The impact of RES on transient stability was provided by a change in CCT by increasing of the RES penetration.

scholarly journals Optimization of Short-term Modes of Hydrothermal Power System

2020 ◽  
Vol 209 ◽  
pp. 07014
Author(s):  
Tulkin Gayibov ◽  
Bekzod Pulatov
Keyword(s):  
Power Systems ◽  
Power System ◽  
Power Plants ◽  
Optimal Planning ◽  
Hydroelectric Power ◽  
Short Term ◽  
Planning Period ◽  
Time Intervals ◽  
Large Power ◽  
Integral Constraints

Optimal planning of short-term modes of power systems is a complex nonlinear programming problem with many simple, functional and integral constraints in the form of equalities and inequalities. Especially, the presence of integral constraints causes significant difficulties in solving of such problem. Since, under such constraints, the modes of power system in separate time intervals of the considered planning period become dependent on the values of the parameters in other intervals. Accordingly, it becomes impossible to obtain the optimal mode plan as the results of separate optimization for individual time intervals of the period under consideration. And the simultaneous solution of the problem for all time intervals of the planning period in the conditions of large power systems is associated with additional difficulties in ensuring the reliability of convergence of the iterative computational process. In this regard, the issues of improving the methods and algorithms for optimization of short-term modes of power systems containing thermal and large hydroelectric power plants with reservoirs, in which water consumption is regulated in the short-term planning period, remains as an important task. In this paper, we propose the effective algorithm for solving the problem under consideration, which makes it possible to quickly and reliably determine the optimal operating modes of the power system for the planned period. The results of research of effectiveness of this algorithm are presented on the example of optimal planning of daily mode of the power system, which contains two thermal and three hydraulic power plants..

scholarly journals A Quantitative Study on the Requirement for Additional Inertia in the European Power System until 2050 and the Potential Role of Wind Power

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2309 ◽  
Author(s):  
Christos Agathokleous ◽  
Jimmy Ehnberg
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Plants ◽  
Worst Case ◽  
Study Results ◽  
The Future ◽  
Alternative Sources ◽  
The Eu

A significant amount of conventional power plants in the European power system is anticipated to be replaced by solar and wind power in the future. This may require alternative sources for inertia support. The purpose of the paper is to learn about the consequences on the frequency deviation after a fault in the European power system when more wind and solar are introduced and when wind is considered as a possible provider of inertia. This study quantifies the expected maximum requirement for additional inertia in the future European power system up to 2050. Furthermore, we investigated the possibility of wind power to meet this additional need by providing emulated inertia. The European power system of the EU-28 countries has been clustered to the five synchronous grids, UCTE, Nordic, UK, Baltic and Irish. The future European energy mix is simulated considering twelve different scenarios. Production units are dispatched according to their expected environmental impacts, which closely follow the minimum natural contribution of inertia, in descending order. The available capacity for all the types of production is considered the same as the installed. For all the simulated scenarios the worst case is examined, which means that a sudden disconnection of the largest production unit of the dispatched types is considered. Case study results reveal that, in most cases, additional inertia will be required but wind power may fully cover this need for up to 84% of all simulated horizons among all the scenarios on the UCTE grid, and for up to 98%, 86%, 99% and 86% on the Nordic, UK, Baltic and Irish grids, respectively.

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