Evaluation of Static Synchronous Compensator and Rail Power Conditioner in Electrified Railway Systems Using V/V and Scott Power Transformers

Barros, Luis A. M.; Tanta, Mohamed; Martins, A.; Afonso, João L.; Pinto, J. G.

doi:10.4108/eai.29-3-2021.169164

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…Maintaining the objective of guaranteeing a high level of power quality at the 3-phase supply, additional solutions are employed, e.g. the STATCOM [29][30][31].…”

Section: Literature Reviewmentioning

confidence: 99%

Traction power substation balance and losses estimation in AC railways using a power transfer device through Monte Carlo analysis

Morais

Martins

2022

Rail. Eng. Science

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The high dynamic power requirements present in modern railway transportation systems raise research challenges for an optimal operation of railway electrification. This paper presents a Monte Carlo analysis on the application of a power transfer device installed in the neutral zone and exchanging active power between two sections. The main analyzed parameters are the active power balance in the two neighbor traction power substations and the system power losses. A simulation framework is presented to comprise the desired analysis and a universe of randomly distributed scenarios are tested to evaluate the effectiveness of the power transfer device system. The results show that the density of trains and the relative branch length of a traction power substation should be considered in the evaluation phase of the best place to install a power transfer device, towards the reduction of the operational power losses, while maintaining the two substations balanced in terms of active power.

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“…Maintaining the objective of guaranteeing a high level of power quality at the 3-phase supply, additional solutions are employed, e.g. the STATCOM [29][30][31].…”

Section: Literature Reviewmentioning

confidence: 99%

Traction power substation balance and losses estimation in AC railways using a power transfer device through Monte Carlo analysis

Morais

Martins

2022

Rail. Eng. Science

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“…Various methods have been used to improve the power quality of three-phase power systems in order to maintain the dependability and balance of electrical railway power systems. This entails reducing the impacts of nonlinear traction loads on three-phase power systems [5] through the use of Flexible AC Transmission Systems (FACTS) [6]. In particular, the use of balance transformers (such as Scott, YNvd, Leblanc, and others) has been a prominent technique to addressing this difficulty [7,8].…”

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confidence: 99%

An adaptive controller for power quality control in high speed railway with electric locomotives with asynchronous traction motors

Chaib Ras,

Bouzerara,

Bouzeria

2024

Electrical Engineering & Electromechanics

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Introduction. Power quality in an electric railway system pertains to the dependability, consistency, and purity of the electrical power provided to different components and systems within the railway infrastructure. Assessing power quality offers considerable opportunities to improve the efficiency of railway systems. Problem. Managing the flow of active and reactive power effectively, decreasing harmonic currents, and addressing the negative sequence component are all critical parts of improving power quality for electrified rail systems. As a result, flexible AC transmission systems are the major means of minimizing or decreasing these difficulties. Purpose. This study describes a half-bridge reactive power railway power conditioner (HB-RPC) with a novel Ynev balancing transformer. HB-RPC is made up of four switching devices and two DC capacitors and the compensator’s stability is determined by the operating voltage of the DC-link. Any variations or imbalances in the DC voltage might cause the compensator to operate in an unstable manner. Novelty. Of a novel balanced transformer with HB-RPC in a high-speed railway system with two scenarios. Methods. The study utilized MATLAB/Simulink software for simulation purposes. The system integrates a fuzzy logic controller (FLC) and a PI controller to optimize DC voltage, ensuring its constancy and balance, with the objective of improving the overall stability of the system. Results. The simulation outcomes illustrate the efficacy of the control approach. Through a comparison of results between scenarios (two and four trains) with the PI-based-HB-RPC and the FLC-based-HB-RPC, the system exhibits enhanced stability for the proposed railway system when employing the FLC-based-HB-RPC, compared to a controller based on PI. Practical value. The proposed configuration elucidates its role in enhancing both the dynamic performance of the system and the power quality of the three-phase rail traction chain.

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Evaluation of Static Synchronous Compensator and Rail Power Conditioner in Electrified Railway Systems Using V/V and Scott Power Transformers

Cited by 2 publications

References 29 publications

Traction power substation balance and losses estimation in AC railways using a power transfer device through Monte Carlo analysis

Traction power substation balance and losses estimation in AC railways using a power transfer device through Monte Carlo analysis

An adaptive controller for power quality control in high speed railway with electric locomotives with asynchronous traction motors

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