Tag: Grid Protection and Control
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Redundant Networks in DSS
Two topics keep coming up in the CIGRE 2024 B5 discussions: network redundancy and time synchronization. Indeed, these are two fundamental design characteristics that ensure the digital substation (DSS) meets the grid’s high expectations for reliability. This is a summary of my findings related to PRP v. HSR. In a digital substation, trip signals are…
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What’s different between a MU and a PIU?
Continuing to share my learning from attending CIGRE 2024 B5 discussions and reading the latest papers on digital substation… A Process Interface Unit (PIU) and a Merging Unit (MU) are components used in digital substations based on the IEC 61850 standard. They have different roles and levels of complexity, primarily focusing on interfacing with the…