The measurement and control devices at converter stations

crucial for sending data to dispatch monitoring centers

require regular calibration.However

the structures and communication protocols of measurement and control devices at converter stations differ significantly from those used in conventional substations

making them incompatible with traditional calibration instruments.Early models without liquid crystal displays complicated data reading and manual calibration.Moreover

the high number of converter stations and extensive deployment of redundant measurement and control setups contribute to substantial on-site calibration workload and low efficiency.In response to these problems

this paper proposes the design of an intelligent calibration instrument tailored for measurement and control devices at converter stations.This device offers a comprehensive

fully automated calibration method

addressing both hardware and software requirements.