Voltage amplitude limiting type fault current suppression method and device for network-forming type current converter

The invention relates to the technical field of operation control of a power grid construction type voltage source converter, and particularly provides a voltage amplitude limiting type fault current suppression method and device for a network construction type converter. Comprising the following steps: calculating a natural value of a current instantaneous rise rate based on an alternating current side current of a network-forming converter, a power grid voltage and an internal potential reference signal generated by a power synchronization loop; performing direct amplitude limiting on the natural value of the current instantaneous rise rate based on a specific logic condition to obtain a corrected value of the current instantaneous rise rate; and based on the current instantaneous rise rate correction value, correcting the differential mode voltage of the alternating current side of the network-building type current converter. According to the technical scheme provided by the invention, the fault current su