Comparison of renewable integration schemes for AC railway
The results from the case study demonstrate that the proposed scheme in which the RES is connected to a three‐phase railway power network generates the smallest power losses
However, to design the emergency power supply scheme for PV and battery systems and identify whether the collaborative integration of PV and battery systems can further change the railway energy supply system to achieve the long-term stable full-power traction of locomotives, the above-mentioned problems are worth deep research and solving.
To mitigate voltage unbalance (VU) and eliminate the neutral sections while reducing the energy consumption of railways, a flexible traction power supply system (FTPSS) with the power hub is proposed.
The railway power-supply system's stability is impacted by these energy fluctuations. An energy-storage system (ESS) is included to the ERMS as a buffer hub for each power system in order to address this issue.
Most studies on the integration of PV and battery into electrified railways focus on RPC grid compensation of traction power and harmonic governance. However, it is necessary to make RPC multifunctional, and few of the literature studies the coordinated control scheme of PV and battery for emergency train traction.
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