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CIM Issues #5313

Better description for governorSCD

Added by Yang Feng almost 3 years ago. Updated 2 months ago.

Status:
Open
Priority:
Low
Author/Contact Info:
Base Release:
Solution to be Applied To:
CIM18
Solution Version:
Solution Applied By:
Completion Date:
CIM Keywords:
61970-Production
Breaking Change:
Yes
Breaking Change Description:
CIM Impacted Groups:
WG13
Requestor:
Standard(s):
Version:
Clause:
Sub-Clause:
Paragraph:
Table:
Originally Closed in Version:
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Description

The current description is: Governor Speed Changer Droop. This is the change in generator power output divided by the change in frequency normalized by the nominal power of the generator and the nominal frequency and expressed in percent and negated. A positive value of speed change droop provides additional generator output upon a drop in frequency.

We use the term “Governor Speed Changer Droop” One could read this as the droop if the speed changer of the governor. Is this what we want? Could we just say “Governor speed droop”

Then the rest defines “the change in generator power output divided by the change in frequency” which is deltaP/delta_f. I guess this maybe also works, but I see it mostly defined change of frequency divided by change of change of P.
Then we have – normalized, percent, negated,… Maybe we can just write as equation.

The description becomes cumbersome to describe the behavior, could be improved by incorporating an equation.

Decision

19-Sep-2024 Joint TF Hybrid Meetings - Minneapolis:
Reviewed. Below are identified AIs:

AI [Chavdar]: Create a proposal that takes into account the provided documents (linked in an earlier comment). % may vary. Note that we'll also need to have the typical pattern and include the normal* attribute as well.

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