Section 7.0 Power Flow Scenarios; Initial System Configuration: Battery On Dc2; Pv Array On Dc3 - Ideal Power Stabiliti Series Quick Start Manual

2. Stand-alone voltage-forming mode. This is otherwise described as a "free-standing"
microgrid or nanogrid. No interaction with a utility-grid is enabled or allowed.
Detailing #1 above ("blink-less" grid interactive voltage-following / voltage-forming) is beyond the
scope of this document, and will be detailed in a separate Application Note.

SECTION 7.0 POWER FLOW SCENARIOS

Initial System Configuration: Battery on DC2; PV Array on DC3

1. Connect an external 24 Vdc power supply, and/or a 480 Vac grid connection.
2. Connect to the Modbus interface and observe the following:
a. Confirm that Port 1 (AC1), Port 2 (DC2), and Port 3 (DC3) Control Methods are IDLE (0).
b. Set p3_v_ll_min_limit = – 20 Vdc to minimize nuisance trips of the Converter due to low
PV voltage.
c. Set p3_pv_min v_setpt = minimum PV Array startup voltge – system will not attempt
MPPT start until this voltage is sensed
d. Set p3_v_ll_max_limit = maximum maximum PV Array voltage – system will shutdown
automatically if this voltage is sensed.
e. Set p2_v_ll_min_limit = minimum battery voltage at lowest SoC – system will shutdown
automatically if this voltage is sensed.
f. Set p2_v_ll_max_limit = maximum battery voltage at lowest SoC – system will shutdown
automatically if this voltage is sensed.
3. Power down external 24 Vdc power supply and/or open AC disconnect.
4. Connect Battery to DC2 and PV array to DC3 as detailed in the Installation and Operations
Manual.
5. Apply power to all ports (close external AC and DC Disconnects).
The Stabiliti™ Series PCS has numerous options with regards to system configuration and
power transfer options. Reviewing the following use cases will demonstrate the flexibility and
capabilities of the 30C3 Multiport PCS.
We begin with a sequence of DC-only test cases, followed by voltage-forming (microgrid), and
lastly voltage-following (grid-tied) applications. Note that a few of these use cases have detailed
Control Method configuration instructions. Use these examples as guidance for other use cases.
Lastly, the noted roles of DC2 and DC3 may be reversed. Both of these DC power ports have
the same Control Method capabilities.
Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
Page 22 of 28