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Power Flow Results Are Not Adjusted To SCADA Values (Doc ID 2864199.1)

Last updated on MAY 03, 2022

Applies to:

Oracle Utilities Network Management System - Version to [Release 2.5]
Oracle Network Management for Utilities - DMS - Version to [Release 2.5]
Information in this document applies to any platform.


On : version,

Power flow is not adjusted to SCADA values

Real-time power flow kW and kVAR values did not adjust to the SCADA values at metering points causing power flow to be incorrect.
Customer confirmed that the SCADA data quality was good with no suspect values.

For example: Metered SCADA at the regulator VR44 indicates per phase real power of 1.64 MW (222A), 2.06 MW (281A) and 2.06 MW (260A) respectively.
However, the power flow results in the device details dialog for the same device indicates a discrepancy with 2.18 MW (306A), 2.62 MW (375A) and 2.39 MW (329A).
Ideally, the load profile on downstream devices must be adjusted to reflect values close to the SCADA metered loads for an accurate power flow.
Power flow results in the device details dialog do not match the load recorded by the metered SCADA at the device location.

Loading must be adjusted to reflect values close to the SCADA for an accurate power flow.

How To Repeat

  1. Find a device that has SCADA measurements that are scaled for DMS process. Eg:
     a device that has MW and MVAR inputs, so the rules apply a scaling factor of
     1000 to convert to the KW and KVAR numbers used in the Power Flow engine.
  2. Note the device's handle
  3. Restart PFService
  4. Once PFService is running issue the following command:
    Action any.PFService show_scada <device handle>
  5. Verify the measurements shown in the log for KW and KVAR are not over-scaled.




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