Andrei Pokatilov, senior researcher at Metrosert, has published a new method for calibrating stand-alone merging units (SAMUs) in the IEEE Transactions on Instrumentation and Measurement international scientific journal.
A novel solution allows the synchronization of sampled value (SV) streams generated according to the IEC 61869-9 and IEC 61850-9-2 standards by devices aligned via the precision time protocol (PTP), with measurement data obtained from reference instruments that do not support PTP. Combined with a pre-characterized sampling digital multimeter (DMM), the proposed method allows automated calibration of stand-alone merging units (SAMUs) and achieves exceptionally low uncertainties in phase-error calibration.
This approach significantly reduces the complexity and cost of calibration systems while ensuring maximum precision. This research is an important step towards improving the reliability of digital substations and smart grids.
IEEE Transactions on Instrumentation and Measurement is the official international scientific journal of the Institute of Electrical and Electronics Engineers (IEEE), the world’s largest professional association for engineers, and covers scientific advances in instrumentation and measurement.
Read the full article: A High-Precision and Low-Complexity Framework for Calibration of Stand-Alone Merging Units | IEEE Journals & Magazine | IEEE Xplore
