Development of a regenerative braking energy utilization device for heavy-haul electrified railways
Year: 2025
Type: article
Abstract: To solve power quality deficiencies in the traction power supply system of heavy-duty electrified railways, such as negative sequences, reactive power, and harmonics, and to make full use of regenerative braking energy, a regenerative braking energy utilization device was developed in this study, with a railroad power conditioner (RPC) capacity of 2 × 5 MVA and an energy storage capacity of 5 MW/350 kWh. The device features a main circuit structure with multi-unit direct parallel connections, which simplifies the transformer winding configuration and reduces the cost of the transformer, leading to an improvement in device availability. For the control of RPC, a "virtual three-phase" control algorithm was proposed to implement negative sequence and reactive power control within the dq axis framework. This algorithm sets clear power quality control goals, ensuring better control performance. Finally, the main functions of the proposed system were verified against key indicators obtained using a reciprocal power-fed test platform, demonstrating high performance.
Authors: KANG Dejian, XIE Baozhen, FENG Wenjie, HU Liang, ZHAO Tongxi, LIN Zhenli, LUO Rui
Language: English
Topic: Power Quality and Harmonics
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7065145893
FWCI:
Cites:
Cited by:
Related to: