FPGA based sequential switching control strategy for a three phase inverter

This paper introduces a new sequential switching control strategy for a current control of a three phase inverter. The key idea, presented in this paper, is to integrate the benefits of the variable structure system control design and the event-driven sequential control structures to raise the system performance and to improve the control efficiency. Twofold design covers the switching conditions determination using the Lyapunov stability criteria and the event- driven sequential switching pattern design for the switching of inverter transistors. The proposed control design is applied for the control of three phase permanent magnet synchronous machine.