Simulation and Analysis of a Single-Bus DC Industrial Power Distribution System with Rotating Load Regenerative Energy Feedback

Compared to AC power distribution systems, DC power distribution systems offer higher power supply reliability, easier integration of renewable energy sources (RESs) and energy storage devices, and fewer power conversion stages. As a result, they are expected to be widely adopted in industrial power distribution systems, data centers, residential buildings, and other fields in the future. This paper conducts a simulation of a single-bus DC industrial power distribution system (IPDS) comprising a grid-connected inverter, a photovoltaic (PV) system, a battery energy storage system (BESS), resistive loads, constant power loads (CPLs), and a three-phase induction motor (IM). Firstly, the topology of the IPDS is proposed. Secondly, the control strategies of each converter in the system and the hierarchical control architecture of the IPDS are presented. Thirdly, multiple operating scenarios including the IM's power energy feedback of the IPDS are simulated based on the real-time simulation equipment Typhoon HIL404 and its software THCC. Finally, the analysis and discussion of the simulation results are conducted.