Optimization of distribution systems reliability with the stochastic behavior

Latvian Journal of Physics and Technical Sciences

et al. 2021

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For a country to be able to survive successfully, one of the criteria is a stable electric power supply that meets certain technical parameters. In the European Union, several countries are working synchronously to ensure the safety of electricity systems. In order to achieve such synchronous operation, the European Union has adopted Regulation No. 2016/631, which sets out the requirements for grid-connected generators. The present article develops a model to assess the compliance of generators with the requirements of the Regulation, as well as conducts economic analysis to assess which generators need investment and whether their use will provide economic benefits. In this way, the state can create a priority list, where generators are divided according to their socio-economic benefits. In 2025, the Baltic States plan to become integrated into the Energy Systems Association of Continental Europe and work synchronously with the other European Union countries, disconnected from the current BRELL energy systems. Therefore, the model developed in the article is applied to the case of Latvia to determine the necessary investments, as a result of which alternatives are considered for improving the current situation.

Section: Methodology and Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Methodology for Investment Evaluation in Electricity Generation Modules according to the Requirements of the European Union

Vempere

Jasevics

Latvian Journal of Physics and Technical Sciences

et al. 2021

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“…Special attention has to be paid to welding works, leak proneness, coating integrity and cathodic protection. During the repeated filling, the pressure must not exceed the permissible limit values [19].…”

Section: Starting To Use the Pipelinesmentioning

confidence: 99%

Risk Treatment and System Recovery Analysis of Gas System of Gas and Electricity Network of Latvia

Latvian Journal of Physics and Technical Sciences

Kutjuns

Bode

et al. 2018

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The Latvian natural gas system is interconnected with transmission networks located in Lithuania, Estonia and Russia. Natural gas commercial metering is provided by GMS “Karksi” (Estonia) and by GMS “Kiemenai” (Lithuania). Natural gas is supplied to all larger urban areas in Latvia. Natural gas is supplied to Latvia along the Latvian–Russian pipeline only during the warm period of the year (April–September), and it is accumulated in the underground gas storage facility in Incukalns. During winter, gas from the underground facility is delivered to Latvian customers, as well as transmitted to Estonia and back to Russia. There is also a connection to Lithuania. Out of the gas supply disruption risks that are assessed at different levels, the essential one with a trans-border impact potential consists in the insufficient technical capacity of Incukalns UGS. Given the current technical possibilities, IUGS cannot pass the gas volume required for the Baltic States to compensate the gas supply deficit. The paper performs system recovery analysis after selected critical events. The paper provides a report describing the steps to be followed in order to restore the gas transmission system to normal operation after selected critical events. A very significant region of the power system of Latvia is the central part of Latvia and Riga region, where both of Riga CHPs, as well as Riga HPP, is located. The restoration time of the gas system of Latvia depends on the gravity of the situation and damage in the gas system and may range from several hours to several days.

“…1050 MW, 3 hydro power plants located on the Daugava River with total installed capacity of approx. 1550 MW, 1 wind farm, 4 major customers and 6 distribution network operators [11], [20], [21].…”

Section: Introductionmentioning

confidence: 99%

Consistency Analysis and Data Consultation of Gas System of Gas-Electricity Network of Latvia

Latvian Journal of Physics and Technical Sciences

Kutjuns

Bode

et al. 2018

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In the present research, the main critical points of gas transmission and storage system of Latvia have been determined to ensure secure and reliable gas supply among the Baltic States to fulfil the core objectives of the EU energy policies.Technical data of critical points of the gas transmission and storage system of Latvia have been collected and analysed with the SWOT method and solutions have been provided to increase the reliability of the regional natural gas system.