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NCA Analysis Allows KVAR Output When KVAR is Disabled (Doc ID 2927442.1)

Last updated on FEBRUARY 10, 2023

Applies to:

Oracle Network Management for Utilities - DMS - Version 2.4.0.1.0 to 2.6.0.0.0 [Release 2.4 to 2.6]
Oracle Utilities Network Management System - Version 2.4.0.1.0 to 2.6.0.0.0 [Release 2.4 to 2.6]
Information in this document applies to any platform.

Symptoms

On : 2.4.0.1.0 version,

NCA analysis allows KVAR output when KVAR is disabled

The amount of KVARs output allowed ( Capacity) by the generator is determined by the generator attributes min_leading_pf and min_lagging_pf.
When these attributes are set to 1, this indicated that VAR generation or consumption is disabled ( i.e no capacity )

In the NCA bids, KVAR's may be present but if the min_leading_pf and min_lagging_pf is set to 1 then the generator has no KVAR capacity and the allowed output determined by NCA analysis MUST be set to 0, regardless of the proposed bid value.
This is not happening and the allowed KVAR output is set to the KVAR entered in the proposal


KVAR must be limited to 0 in this circumstance

The issue can be reproduced at will with the following steps:

  1. Find a NCA DER that is not capable of producing reactive power
  2. Set the bid proposal to include reactive power
  3. Run NCA
  4. Ensure the plan recommendation does not include reactive power dispatch and the unit is marked as curtailed
  5. Set the overall bid proposal for a unit to include more KVA than the unit is capable of
  6. Run NCA
  7. Ensure the plan recommendation curtails the unit to its max output and marks the unit as being curtailed


Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
 Fix Description
 Migration
References


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