6.5. DC source DGN additions
Fri, 2024-04-05 13:56 — RV-C Admin
Justification:
The following additions are proposed to the DC Source status and configuration DGNs
| Attachment | Size |
|---|---|
| 6.5. DC Source DGN Additions.docx | 24.4 KB |
OBJECTION On
OBJECTION
On DC_SOURCE_CONFIGURATION_COMMAND_4
Current Time Constant / Voltage Time Constant.
There are several algorithms that can be used to smooth and sample this sort of data. It isn't clear which is intended, and for no algorithm is there enough information here to fully describe the parameters. From the Name and Description, I would guess that Exponential Smoothing is what is intended. From the Unit, I would assume a Moving Average. In the first case, there are two parameters of interest - the sampling rate and the smoothing factor. In the latter case, only the sampling rate is required.
These are just two possibilities - there are lots of other algorithms available. Intuitively, a Moving Average would be more appropriate for Current, Exponential Smoothing for Voltage, but there are a number of factors to consider.
I suggest something like:
Bits 3.0-3.3 Current Smoothing Algorithm 0 = Single Sample. 1 = Moving Average. 2 = Exponential Smoothing.
Bits 3.4-3.7 Voltage Smoothing Algorithm . . . .
Byte 4 Current Sample Rate (0.1 sec)
Byte 5 Current Smoothing Constant
Byte 6 Voltage Sample Rate (0.1 sec)
Byte 7 Voltage Smoothing Constant