Communication Scheme of Master-Slave Control System for Cascaded Inverter

This paper proposes a master-slave control system communication scheme for cascaded inverter based on FPGA. The communication between master and slave controllers of cascaded inverters is the precondition of coordinated control. Firstly, through the analysis of functional requirements of master-slave control system, the communication protocol, hardware equipment and overall communication scheme are designed in detail. And then the state machine conversion process, transceiver module, error detection module and system communication stability are designed and tested. Finally, an experimental prototype is built to verify the effectiveness and practicability of the master-slave communication scheme.