Research on improved LADRC for three-phase VSR based on GI-ESO

In order to improve the anti-interference ability of the three-phase voltage-type PWM rectifier (VSR), an improved linear auto-disturbance-rejection control scheme based on GI-ESO based three-phase voltage-type PWM rectifier in a static coordinate system is proposed, the solution solves the problem that the three-phase voltage type PWM rectifier fluctuates excessively when the load is suddenly added and unloaded. Then, a simulation model of the system was built in the Simulink environment of Matlab, and a simulation model based on linear active disturbance rejection control in a synchronous coordinate system was built at the same time for a comparative analysis. Through simulation verification, the effectiveness of the adopted control scheme was obtained verification.