scholarly journals Analysis of the Operating Modes of the Stationary Energy Storage Device in DC Railway Power Supply System

2021 ◽  
Vol 51 (1) ◽  
pp. 91-104
Author(s):  
Marek Skrzyniarz ◽  
Artur Rojek ◽  
Włodzimierz Kruczek ◽  
Kamil Mike ◽  
Łukasz Mroczkowski ◽  
...  
Keyword(s):  
Energy Storage ◽  
Laboratory Tests ◽  
Power Supply System ◽  
Supply System ◽  
Measuring System ◽  
Storage Device ◽  
Operating Modes ◽  
Traction Substation ◽  
Special Measuring ◽  
Electric Traction

Abstract This article analyzes the operating modes of the energy storage. The aim was to conduct laboratory tests in conditions similar to real energy storage and to analyze its basic electrical parameters. A special measuring system has been created for laboratory testing. Real tests took place in the traction substation in Mińsk Mazowiecki, where the energy storage was included in the traction substation system. Based on the laboratory tests carried out and in real conditions it was found that the use of energy storage in the electric traction supply system is justified. It is adapted to work as a device supporting the operation of the traction substation and the section cabin.

scholarly journals Research of Operation of Predictive Controllers of Distributed Generation Plant in Power Supply System with Energy Storage

2021 ◽  
pp. 448-458
Author(s):  
Yuri N. Bulatov ◽  
Andrey V. Kryukov ◽  
Konstantin V. Suslov
Keyword(s):  
Energy Storage ◽  
Distributed Generation ◽  
Power Supply ◽  
Power Supply System ◽  
Electric Energy ◽  
Synchronous Generator ◽  
Supply System ◽  
Storage Device ◽  
Energy Storage Device ◽  
Predictive Controllers

The article discusses the power supply system of an industrial enterprise, which included a turbine generator plant operating on the basis of a synchronous generator equipped with predictive voltage and rotor speed controllers, as well as a high-power electric energy storage device. A description of the models of this plant, predictive controllers and energy storage, as well as the results of modeling when the system goes into an isolated mode of operation are given. Simulation was performed in MATLAB environment using Simulink and SimPowerSystems packages. The purpose of the work was to study the behavior of the proposed predictive controllers during the transition of the power supply system to the island (isolated) mode. Based on the results of computer simulation, it was concluded that the use of predictive controllers improves the damping properties of the system. The use of an energy storage device that is automatically connected to the network when the voltage drops, allows to reduce the overvoltage at the terminals of the generator during its unloading, as well as to reduce the required mechanical power on the turbine shaft in comparison with a permanently connected device. Predictive controllers can be recommended to increase the stability of distributed generation plants when switching to an isolated mode. It is advisable to conduct further research in the direction of creating algorithms for coordinated operation of controllers

scholarly journals The study of the isolated power supply system operation with controlled distributed generation plants, energy storage units and drive load

2022 ◽  
Vol 23 (5) ◽  
pp. 184-194
Author(s):  
Yu. N. Bulatov ◽  
A. V. Kryukov ◽  
K. V. Suslov
Keyword(s):  
Control System ◽  
Energy Storage ◽  
Distributed Generation ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Storage Unit ◽  
Energy Storage Unit ◽  
Operating Modes ◽  
Speed Controller

THE PURPOSE. Investigation of the operating modes of an isolated power supply system with controlled distributed generation plants, energy storage units and a drive load. Determination of the influence of the proposed prognostic controller of a distributed generation plant on the control parameters and quality indicators of the control process under various operating modes of an isolated power supply system.METHODS. The studies were carried out on a computer model of an isolated power supply system of an industrial enterprise with a turbine generator plant, a wind generator plant and a high-power electric storage unit, for which a fuzzy control system and a prognostic controller were used. The simulation was performed in MATLAB using Simulink and SimPowerSystems packages.RESULTS. The article describes a computer model of an isolated power supply system, as well as a structural diagram of the proposed autoprognostic speed controller. The simulation results showed that the combined use of an energy storage unit and an auto-prognostic generator rotor speed controller makes it possible to ensure the stability and survivability of an isolated power supply system, increasing its damping properties. The use of a fuzzy control system of a wind-generating plant made it possible to ensure its stable operation in all considered modes.CONCLUSION. The auto-prognostic speed controller, which does not require special settings, and the energy storage unit provide high quality control indicators in normal and emergency modes. It is advisable to conduct further studies to coordinate the actions of the control system of the electric energy storage unit and the auto-prognostic speed controller of the distributed generation plant.

Improvement of grounding system of DC traction substation in railway power supply system

2012 ◽  
Author(s):  
Hitoshi Hayashiya ◽  
Norio Koguchi ◽  
Hiroshi Yamamoto ◽  
Takashi Ozaki ◽  
Takashi Sakurai ◽  
...  
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Grounding System ◽  
Traction Substation

Suggestions in Ensuring the Safety of UPS Power Supply

2012 ◽  
Vol 461 ◽  
pp. 772-774
Author(s):  
Xue Mei Dai ◽  
Yu Fu
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Storage Device ◽  
Practical Application ◽  
Constant Frequency ◽  
Uninterruptible Power Supply ◽  
Uninterruptible Power ◽  
Main Component

UPS (Uninterruptible Power System) is an energy storage device, and it is also a uninterruptible power supply which contains the inverter as the main component and works at the constant voltage constant frequency. it is playing an increasingly important role. Some suggestions are mainly proposed to ensure the safety of UPS power supply system in this paper, which make the UPS power supply system really play the role of escort in the practical application.

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