Power transmission system receiving end alternating current fault ride-through method, device and equipment and storage medium

The invention discloses a power transmission system receiving end alternating current fault ride-through method, device and equipment and a storage medium, and the method comprises the steps: obtaining the fault type of a receiving end power grid under the condition that the receiving end power grid has a fault, and if the fault type indicates that a first fault occurs, executing the step 1; if yes, reducing a first direct current voltage output by the receiving end converter station to the direct current line to a target voltage, and reducing a direct current output by the sending end converter station to the direct current line from an initial current to a target current under the condition that a second direct current voltage output by the sending end converter station to the direct current line is smaller than a first preset voltage, therefore, fault ride-through of the direct-current power transmission system is realized. According to the method, system overvoltage can be prevented, the sending end conve