Three-Phase Inverter Control Strategy Based on Improved PSO Algorithm

With the increasingly serious energy problems and the extensive use of new energy sources, how to ensure that the new energy power generation system has good grid-connected stability has become a new research hotspot. The optimization of the control strategy of the output stage inverter of a power electronic transformer (PET) based on the improved particle swarm algorithm (PSO) is mainly discussed. By introducing the improved PSO algorithm, the paper solves the problem of parameter tuning of the traditional PID controller. It verifies the effectiveness of the optimized control strategy in improving the dynamic and static performance of the system, disturbance immunity, and harmonic distortion rate.