Control in Multi-Motor Electric Vehicle with a FPGA platform

A new FPGA based platform is presented for controlling a multi-motor electric vehicle (EV). By exploring the FPGA parallel processing capabilities, two induction motor controllers, based on field orientation control and space vector modulation techniques, were merged in a single and compact chip. Implementation issues related with the limited number of dedicated multipliers were overcome using an efficient computational block, based on resource sharing strategy. The developed IP Cores were carefully optimized to fit in a low cost XC3S1000. Experimental results, obtained with a multi-motor EV prototype, demonstrate the proper operation of the proposed propulsion system.