Development of a comprehensive approach to determining the rational parameters of an onboard capacitive energy accumulator for a subway train

Sulym, A.; Fomin, Oleksij; Khozia, P.; Palant, Oleksii; Stamatin, Vyacheslav

doi:10.15587/1729-4061.2019.183304

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…Коефіцієнт потужності 1 означає, що вся потужність використовується ефективно, тоді як значення нижче 1 вказують на те, що деяка кількість енергії не використовується. [10,11]. З наведених графіків можна зробити такі висновки.…”

Section: аналіз стану питанняunclassified

Calculation of instantaneous line current of a three-phase network with an isolated neutral

Demianenko

2022

Bull. Nat. Tech. Univ. "KhPI". Ser.: Energy: Reliab. Energy Eff

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The article focuses on the study of methods for calculating instantaneous line currents in a three-phase network with an isolated neutral, which is critical for improving the reliability, efficiency, and accuracy of monitoring and diagnostics of electrical systems. The developed method extends the capabilities of standard approaches to diagnostics and analysis, and it allows for more accurate analysis of instantaneous parameters in electrical networks and detection of faults in the operation of high-voltage electrical installations. The study used an integrated approach to analyzing and modeling the operating and emergency modes of a subway traction substation using a three-phase rectifier. Detailed power supply modeling and analysis of the harmonic components of line currents and voltages in the high-voltage network were performed. Various operating scenarios are modeled, including normal and emergency conditions when one of the diodes in the rectifier fails. It was found that the harmonic composition has significant changes in the event of a diode failure, which can be used to diagnose the condition of the equipment. The results can be used to optimize the design, operation, and maintenance processes in the urban electric transport sector and other industrial systems, reduce the risk of unforeseen accidents, and ensure the stability of electricity supply. Modeling has shown the effectiveness of the proposed method for detecting emergencies and improving the efficiency of traction substation maintenance. The proposed recommendations will help to improve the efficiency, energy efficiency, and reliability of electrical systems, in particular in the industrial sector and large infrastructure projects, providing a more stable and secure power supply.

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Section: аналіз стану питанняunclassified

Calculation of instantaneous line current of a three-phase network with an isolated neutral

Demianenko

2022

Bull. Nat. Tech. Univ. "KhPI". Ser.: Energy: Reliab. Energy Eff

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Theory development for determination of rational parameters of the capacitive energy storage for a metro train

Sulym¹

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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In the article a comparative analysis of existing methodologies and approaches on the parameters determination of the capacitive energy storages for a metro train with energy recovery systems was performed, disadvantages of each of them were determined. A complex approach for estimation of the on-board capacitive energy storage parameters was proposed; the point of approach consists in determination of the rational power and energy capacity for two parameters of the storage system at once – mass and payback period. The complex approach is based on theoretical researches, which require simulation of the metro train equipped with recuperation system operation by mean of developed software. The objective function was represented and boundary values for the power and energy capacity during determination of the rational parameters of the on-board capacitive energy storage using a complex approach were specified. The recuperation system with rational parameters of the on-board capacitive energy storage for specified service conditions in Public Utility Company “Kyiv Metropolitan” and chosen research metro train was specified. Amount of energy stored due to the installation of the energy storage system with rational parameters was estimated.

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Analysis of Management Strategies for Energy Exchange Processes in the Electric Rolling Stock with On-Board Capacitive Energy Storages

Sulym

Khozia

2021

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)

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Development of a comprehensive approach to determining the rational parameters of an onboard capacitive energy accumulator for a subway train

Cited by 4 publications

References 10 publications

Calculation of instantaneous line current of a three-phase network with an isolated neutral

Calculation of instantaneous line current of a three-phase network with an isolated neutral

Theory development for determination of rational parameters of the capacitive energy storage for a metro train

Analysis of Management Strategies for Energy Exchange Processes in the Electric Rolling Stock with On-Board Capacitive Energy Storages

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