A New Multi-Motor Traction Drive for Rail Vehicles with On-Board Braking Energy Saver

摘要: This paper suggests an innovative multi-machine coordinated drive system for electric rail vehicles, equipped by onboard supercapacitor to recuperate braking energy. An effective energy management strategy is also presented it reduce both current magnitude of the main supply and dc bus voltage drop during train acceleration. Moreover, applicable model predictive control method introduced speeds its two open-winding Permanent Magnet Synchronous Machines at same time, while considering their voltages currents constraints independently. Simulation results show validity effectiveness proposed topology, feasibility designed controller in terms required computational power memory.