Configure System Settings - GE DMC490 Software Configuration Manual

DMC490 Microgrid Controller Software Configuration Guide

Configure System Settings

System Settings are used to configure isochronous or droop control.
» To configure System Settings:
Navigate to Configuration > MGC > Settings >
• System Settings
• Boiler asset
• Heat Load asset
System Settings
Setting Description
System Specify a name for the system.
Active Mode Specify the microgrid operation mode to use. An example of
mapping is as follows:
1. Dispatchable isochronous load share (default)
2. Renewable in isochronous
3. Single dispatch in isochronous (CHP)
4. Grid in isochronous
When you have two wind turbines, battery storage, hydro, a
backup diesel generator, and a grid connection, all four modes
potentially apply.
In this case, because the grid connection exists, the grid
behaves like an isochronous machine, and hydro in
isochronous mode or dispatchable in isochronous mode cannot
be selected.
Isochronous When connected to a grid, the grid compensates for any
Margin Plus1 (%) imbalance between load and generation in the microgrid,
behaving like an isochronous machine for the microgrid.
Isochronous
However, for islanded microgrids, there is a need for an
Margin Plus2 (%)
isochronous machine to maintain load-generation balance and
Isochronous
stabilize the microgrid for instantaneous load and renewable
Margin Plus3 (%)
generation variations above or below the forecasted values.
Isochronous
Such an isochronous machine provides reserve margins in both
Margin Plus4 (%)
positive and negative directions to address the deficit or
Isochronous
surplus of power, respectively. These margins are defined as a
Margin Minus1
percent of the total load in the microgrid and need to be
(%)
defined for both grid-connected and islanded microgrids.
Isochronous Configure the margins for a microgrid, for both power deficit
Margin Minus2 (the plus margin) and power surplus (the minus margin).
(%)
The numbers 1 to 4 in these setting names correspond to the
following microgrid operation modes. Configure all values. The
Isochronous
higher the variation in power generation, the greater the
Margin Minus3
margin.
(%)
40
Range Default
4 to 20 DMC490
characters MGC
1 to 4 1
0% to 100% 0.2%