Methodology for assessing the impact of regenerative braking energy injection of a direct current railway system on the distribution grid

Araúz, Jesús; Martínez, Sergio

doi:10.1016/j.epsr.2023.109368

Cited by 10 publications

(2 citation statements)

References 46 publications

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“…I23 -China2012 Northern China, 2012 [77], [78]. A subsynchronous oscillation (6)(7)(8) occurred between a wind farm and a series compensated transmission system (PQ). Such phenomena are highly dependent on loading/damping situation that shapes the grid impedance [77].…”

Section: Complexity and Sensitivity Of Oscillatory Incidentsmentioning

confidence: 99%

“…This can be either due to overproduction, e.g. residential rooftop PV systems, or as grid services for example bi-directional charging of electric vehicles or recovery of braking energy in electric public transport [7]. In order to orchestrate the large number of devices in the digitalized power grid of the future, it is necessary that they can safely and reliably exchange data.…”

Section: Introductionmentioning

confidence: 99%

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Survey of Real-World Grid Incidents–Opportunities, Arising Challenges and Lessons Learned for the Future Converter Dominated Power System

Wachter,

Gröll,

Hagenmeyer

2024

IEEE Open J. Power Electron.

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To reach the climate goals set by national and international institutions, a vast transition of the legacy power system is unavoidable. The necessary integration of distributed, renewable generation devices, which are often interfaced with power electronic converters, has a non-negligible influence on the characteristics of the power grid. This is particularly visible during abnormal grid conditions such as faults. For rotating machines, the fast-timescale reaction to these events is mainly determined by physical properties. However, power electronic devices lack this strong coupling and their behavior is generated by the control and automation system, making them a major field of interest during this transition. The present paper provides a survey of real-world incidents, as for example blackouts or oscillatory incidents, that are discussed with respect to the implications for future converter dominated power grids. For typical cascading outages it is shown, where the increasing penetration of distributed, renewable generation and smart grid technologies can be leveraged to increase the system resilience, e.g. by providing grid services through adequate control design or by enabling microgrid concepts. Further, real-world examples of newly emerging challenges driven by power electronic devices are presented. The mechanisms of control system interactions with the neighboring grid and its inherent complex dependency on various factors is illustrated. Lastly, resulting structural developments such as the changed resonance properties of low voltage grids and the increase of harmonic emissions are exemplified.

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Section: Complexity and Sensitivity Of Oscillatory Incidentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Survey of Real-World Grid Incidents–Opportunities, Arising Challenges and Lessons Learned for the Future Converter Dominated Power System

Wachter,

Gröll,

Hagenmeyer

2024

IEEE Open J. Power Electron.

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Hybrid energy storage system and its hardware‐in‐loop platform for 1500‐V metro DC power supply system based on voltage droop control

Lin,

Chen,

Liang

et al. 2023

Circuit Theory & Apps

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SummaryHybrid energy storage technology, which consists of lithium‐ion batteries (LiB) and super capacitors (SC), is an effective way to ensure the safety of power supply and realize energy saving in metro by reusing the braking power. Aiming at the optimal configuration and control of the metro hybrid energy storage system (HESS), an energy management strategy (EMS) based on dual DC/DC architecture and voltage droop method is proposed. And then the control parameters are adjusted in segments by combining the DC bus voltage and values of SOC of LiB and SC. What's more, a hardware‐in‐loop (HIL) simulation platform of Metro DC power supply system is built to verify the control strategy. The experimental results show that HESS could stabilize the metro voltage within a safe voltage of 580 V and achieve 100% braking energy recovery by optimal energy distribution between two different types of energy storage systems, which are only 79.9% and 39.2% in other single energy storage system by contrast. At the same time, the HIL simulation platform can be used to verify the control effect of different configuration capacities and different control strategies of the HESS, helping to provide the optimal solution of HESS for actual subway lines.

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Study on Energy Efficiency of an Electrified Railway Line

Kociu,

Berzi,

Delogu

et al. 2024

Lecture Notes in Networks and Systems

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Methodology for assessing the impact of regenerative braking energy injection of a direct current railway system on the distribution grid

Cited by 10 publications

References 46 publications

Survey of Real-World Grid Incidents–Opportunities, Arising Challenges and Lessons Learned for the Future Converter Dominated Power System

Survey of Real-World Grid Incidents–Opportunities, Arising Challenges and Lessons Learned for the Future Converter Dominated Power System

Hybrid energy storage system and its hardware‐in‐loop platform for 1500‐V metro DC power supply system based on voltage droop control

Study on Energy Efficiency of an Electrified Railway Line

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