Hybrid active damping control method for grid-connected inverter

The invention discloses a hybrid active damping control method for a grid-connected inverter, and belongs to the technical field of grid-connected inverter control, and the method comprises the steps: collecting a capacitor voltage and an inverter side current, enabling a phase-locked loop to obtain the phase angle information of a control system through locking the capacitor voltage, information collected by an inverter side current sensor is used for judging whether the device is in an overcurrent state or not and performing closed-loop control on output current; the inverter side current and the capacitor voltage are respectively used for feedback and feedforward, and are used for controlling the modulation process of the system after being superposed with the output of the current loop. Compared with an existing active damping control method, the method only needs a capacitor voltage sensor and an inverter side current sensor. The two sensor elements are basic sensor elements for phase information detecti