Active over-configuration design method applied to electric energy storage PCS

The invention provides an active over-configuration design method applied to an electric energy storage PCS, and the method comprises the following steps: S1, carrying out reactive matching calculation, defining a first input packet, and outputting various powers of an energy storage station; s2, judging whether the PCS active overmatching ratio value after reactive matching calculation of the output result in the step S1 is greater than or equal to the PCS active overmatching ratio minimum set value or not; s3, system matching calculation is carried out, a second input packet is defined, and an output result is a parameter of a battery of the energy storage power station; s4, judging whether the actual calculated value of the battery active overmatching ratio of the output result of the step S3 is greater than or equal to the minimum set value of the battery active overmatching ratio and less than or equal to the maximum set value of the battery active overmatching ratio; s5, optimizing matching calculation,