Power Quality Information modeled in IEC 61850

IEC 61850 is a powerful standard – also for describing the exchange of Power Quality Information.

IEC 61850 has been extended to support many advanced power quality applications like those defined in IEC 61000-4-30 and EN 50160. IEC 61850-7-4 Edition 2 defines logical nodes, that support modeling and configuring event sequencing with additional quality reporting and waveform recording.

Excerpt of logical nodes for power quality:

• Harmonics (MHAI)
• Flicker (MFLK)
• Imbalanced power calculations (MADV)
• Frequency variation (QFVR)
• Current transient (QITR)
• Current unbalance variation (QUIB)
• Voltage transient (QVTR)
• Voltage unbalance variation (QVUB) and
• Voltage variation (QVVR).

Click HERE for a nice summary published by Schneider Electric.
Click HERE for a draft list of Logical Nodes for Power Quality (this content was used as input to the development of IEC 61850-5 Edition 2 and IEC 61850-7-4 Edition 2).