Current issues in the management by dispatching of the operating regime and maneuvering with long electric lines in the national power system

2018 ◽  
Author(s):  
Silvia-Maria Diga ◽  
Nicolae Diga ◽  
Adelaida-Mihaela Duinea
Keyword(s):  
Power System ◽  
Operating Regime ◽  
National Power

scholarly journals Impact of Development of Infrastructure for Charging Electric Vehicles on Power Demand in the National Power System

2019 ◽  
Vol 29 (1) ◽  
pp. 66-91 ◽  
Author(s):  
Łukasz Szabłowski ◽  
Paweł Bralewski
Keyword(s):  
Power System ◽  
Electric Vehicles ◽  
Calculation Model ◽  
Distribution Area ◽  
Legal Environment ◽  
Power Demand ◽  
Technical Process ◽  
Electric Cars ◽  
National Power ◽  
The Impact

Abstract The following paper focuses on the electric vehicles sector development and its possible influence on power system load in Poland. The goal is to estimate the increase of power demand resulting from the electric cars charging. First of all, the current legal environment, which provides a framework for the e-mobility sector evolution, was described. Furthermore, the technical process of electric vehicles charging was depicted and the applicable methods of cooperation between e-mobility and power system were proposed. The quantitative analysis of the impact of the electric vehicles charging on the power demand in the National Power System was conducted. The input data and adopted assumption were specified. The structure of the calculation model and the differences between analyzed scenarios were described. The outcome obtained for the National Power System and Warsaw distribution area were presented.

scholarly journals Decarbonising power system with high share of renewables and optionally with or without nuclear, Slovenia case

2021 ◽  
pp. 342-342
Author(s):  
Joze Dimnik ◽  
Peter Novak ◽  
Simon Muhic
Keyword(s):  
Power System ◽  
System Analysis ◽  
Energy System ◽  
System Capacity ◽  
Power Sources ◽  
Distributed Power ◽  
Electricity Grid ◽  
National Power ◽  
Analysis Computer ◽  
Winter Time

The aim of this work is to highlight challenges, if there are any, in decarbonising national power system in Republic of Slovenia. National electricity grid was hourly simulated using EnergyPlan - Advanced energy system analysis computer model in circumstances where distributed power sources capacity exceeds peak system demand. The goal was to estimate the influence of 4400 MW distributed power production to the power grid with peak demand of up to 3000 MW, respecting the fact that distributed power sources partly meet demand in summer sunlight time, however modestly meets demand in winter time. Electricity demand in summer and winter time are of the same magnitude of order. Modest system capacity for electricity storage were respected and influence to cross border transmission demand was estimated. Chalenges related to grid stability were shown and how nuclear can improve grid stability is presented.

Modelling CHP within a national power system

Energy Policy ◽  
1993 ◽  
Vol 21 (4) ◽  
pp. 418-429 ◽  
Author(s):  
Poul Erik Grohnheit
Keyword(s):  
Power System ◽  
National Power

scholarly journals Problems related to balancing peak power on the example of the Polish National Power System

2017 ◽  
Vol 66 (1) ◽  
pp. 207-221 ◽  
Author(s):  
Henryk Majchrzak
Keyword(s):  
Power Generation ◽  
Power System ◽  
Peak Power ◽  
Transmission System ◽  
Power Demand ◽  
Peak Loads ◽  
National Power ◽  
Power Balancing

Abstract The article discusses issues related to ensuring secure operation of the National Power System. The tasks of transmission system operators in that scope were presented and the power demand of the Polish National Power System on critical days in terms of power generation and demand was characterized. The article also presents the causes and course of events which took place in August 2015 when there was a critical imbalance in the Polish National Power System leading to the introduction of limitations. Then, the possibilities and types of costs connected with the possibilities of balancing the system in the periods of peak loads were characterized. The summary of the article contains the presentation of conclusions related to power balancing in the power system and reduction of related costs.

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