Simulation Research of Low-Voltage Modules of Rectifier in 3kV Railway Substation

Szymański, J.; Żurek-Mortka, Marta; Sachan, Sulabh; Acharjee, Dulal

doi:10.1109/stpec49749.2020.9297803

Cited by 1 publication

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Assuming ideal converter switches, the AC and DC side power is equal as given in Equation (15). Equations ( 16) and (17) show that by regulating the d component of the AC side current of the converter (I d ), the DC voltage (V DC ) can be controlled.…”

Section: Inverter Operationmentioning

confidence: 99%

See 1 more Smart Citation

Cost‐effective upgrade of the Dutch traction power network: Moving to Bi‐directional and controllable 3 kV DC substations for improved performance

Panda

Poikilidis

Nguyen

2023

IET Electrical Syst in Trans

View full text Add to dashboard Cite

Traction power networks can significantly influence a country's national grid due to their significant power consumption and numerous coupling points. To modernise the ageing Dutch traction power networks and enhance their impact on the utility grid, this study explores practical and cost-effective approaches for upgrading existing 1.5 kV DC traction substations (TS) in the Netherlands into 3 kV bi-directional DC TS. After evaluating the benefits of a 3 kV bi-directional DC, two novel topologies are proposed that re-use the existing substation's components and reduce the need for higher investments. These topologies incorporate parallel voltage source converters (VSCs) to recuperate braking energy from the DC grid and transfer it back to the AC grid. Furthermore, the study investigates additional use cases for the VSCs, including improving DC TS's reliability during faults, reducing harmonics through active power filtering, compensating for reactive power, and supporting the integration of renewable energy sources into the DC grid. A comprehensive control strategy for the VSCs is also proposed based on a thorough analysis of their working methodology and functional modes. The feasibility and effectiveness of the proposed solutions are validated through scenario analysis relevant to the Netherlands' traction network, utilising both a Simulink model and an Opal-RT real-time simulator. This study serves as a starting point for the various stakeholders of the Dutch traction network in their journey towards modernising the current traction power supply. It has the potential to serve as a reference for reusing existing railway infrastructures to provide ancillary services and support the energy transition. K E Y W O R D Spower harmonic filters, PWM power convertors, rectifier substations, regenerative braking, traction | INTRODUCTIONThe rail transportation is one of the most efficient means of public transportation. Railway electrification in the 1800s was an important step in decarbonising the transportation sector, as electrification is crucial for the sustainability and efficiency of a country's transportation system. It leads to lower operating costs, reduced greenhouse gas emissions, and improved train performance, contributing to a more sustainable future for the transportation sector. In the future, electrified railways will be the only viable option for sustainability, making the interconnection between these systems and the national power grid

show abstract

Section: Inverter Operationmentioning

confidence: 99%

“…Series connection of LV rectifiers to achieve a higher output voltage has been seen to stabilise load voltage and introduce lesser alternative distortion voltage at the load side [15]. Series connected 6‐pulse rectifiers are used in the railway lines east of Algeria [16].…”

Section: Introductionmentioning

confidence: 99%