Problems of functioning and development of a new electricity market model in Ukraine (according to the scientific report at the meeting of the Presidium of NAS of Ukraine, February 3, 2021)

The main requirements for the volume of ancillary services in the IPS of Ukraine are considered. In particular, the requirements for the frequency maintenance reserve and frequency recovery reserves. The influence of renewable energy sources (RES) on the balance of production and consumption of electricity is shown. The place of hydroelectric power plants in the modern conditions of functioning of the IPS of Ukraine and the structure of the ancillary services market is considered. It is shown that in fact, according to the existing structure of production facilities in the IPS of Ukraine, only HPP and HPSP units are able to balance the fast-changing load schedule of renewable energy sources due to their high maneuverability. Features of operation of HPP units in normal and emergency modes are given. Prospects for the development of ancillary services in the IPS of Ukraine are identified. The need to update the regulatory framework was noted according to the results of the analysis of the peculiarities of the functioning of the IPS of Ukraine,. It is noted that it is necessary to clarify the Transmission System Code in terms of updating the requirements for the minimum required reserves for frequency control in the IPS of Ukraine given the growing share of unregulated RES in the structure of production capacity. Some measures are proposed to increase the level of operational security of regimes in the conditions of further development of RES and plans for synchronization of UES of Ukraine with ENTSO-E energy systems.

Section: актуальні проблеми забезпечення оес україни ресурсами регулю...unclassified

Current Problems of Providing Frequency and Power Regulation Resources to Ips of Ukraine

Olefir¹,

Babich²,

Blinov³

2022

“…Сегмент ринку електричної енергії «на добу наперед» (РДН) є сегментом на якому здійснюється купівля та продаж електричної енергії за маржинальними цінами з її постачанням на наступний день після проведення торгів [2]. За умов незадовільних результатів прогнозування в учасників ринку виникає значний небаланс електричної енергії, яку потрібно докуповувати на балансуючому ринку, що вочевидь призводить до збільшення її вартості.…”

unclassified

Determination of Electrical Losses Based on Nodal Electrical Load Forecasts

Shymaniuk¹,

Miroshnyk²,

Blinov³

2023

This study proposed the use of forecasting methods based on artificial neural networks for calculating and forecasting energy losses. The calculation of energy losses was performed on the CIGRE test network. Several approaches were developed to determine energy losses: prediction of electrical energy losses using artificial neural networks, and calculation of losses using nodal load prediction based on artificial neural networks, which were compared with the classical method of calculating losses based on summer and winter peak load coefficients. Depending on forecasting problems, when using artificial neural networks, the amount of electrical energy losses in distribution networks decreased by three times compared to the calculation of losses using coefficients.

“…Основним завданням в сфері стандартизації на базі концепції Smart Grid є забезпечення дотримання єдиних вимог щодо інформаційного обміну та комунікацій на всіх ієрархічних рівнях енергосистеми та ринку електричної енергії [6]. Безпечне, надійне та економічне енергопостачання тісно пов'язано зі швидкою, ефективною та надійною комунікаційною інфраструктурою енергосистеми, тому проектування та побудова комунікаційних мереж потребує такої ж високої надійності, як і системи електропостачання.…”

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Implementation of Basic International Smart Grid Standards in Ukraine: Current State

Kyrylenko¹,

Denysiuk²,

Зайцев³

et al. 2023

In this paper, the main components of the basic model of the Smart Grid architecture according to the standard IEC TR 63097:2017 "Smart Grid Roadmap" are considered. The list of basic and particularly important international standards, which have a significant impact on the application of Smart Grid, has been identified and analyzed. A group of standards describing the basic principles of Smart Grid systems application is selected. These groups are unifying and allow to eliminate contradictions between other existing standards, to ensure their consistency. The development of a strategy and the creation of a road map for the adoption of modern European and international standards in Ukraine in the field of Smart Grid substantiated. A list of relevant directions and functional systems necessary for the implementation of the components of the Smart Grid concept is given. These directions require a detailed analysis to establish priority levels during the implementation of relevant modern European and international standards in Ukraine, taking into account the specifics of the Ukrainian electricity market.