Power Flow Control of a Hybrid Voltage Source Three Level Inverter for Energy Saving of Railway Vehicle Traction System

In this paper, an energy management strategy and a power flow control method are proposed through a 0.75 kW experimental set up with a motor drive system, with consideration of the actual switching. According to the experimental results, the state of charge (SOC) of the energy storage devices (ESD) is kept within the limit with enhancing the output voltage of the inverter. Through these study, a control method for the Hybrid voltage source 3Lv. inverter is expected to be established.