Network-Side Power Optimization Control Considering Photovoltaic and Energy Storage Connection to RPC-Type Traction Power Supply System

Multi-source power supply for electrification of the railroad is essential for having a sustainable energy supply to drive critical EMU loads. Firstly, the working theory of railway power conditioner (RPC) is analyzed, and the “optical-storage-locomotive-network” model is built. Secondly, the specific working mode is proposed. Thirdly, the energy flow under various modes of the RPC converter are analyzed, and a cooperative control scheme for compensating the output power of the traction network by the photovoltaic storage system through the railway power conditioner is presented. Finally, the cooperative control scheme is verified and analyzed by Starsim HIL real-time test platform.