Qcells Q.HOME CORE H Series, Руководство пользователя

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Features
24
• Reactive Power Response : The inverter supports the reactive power response mode according to
the grid code to support the grid system.
-
Volt-var : The inverter outputs the reactive
power by the response curve according to the
grid system voltage. This response is supported
only in Australia and New Zealand.
RE
A
C
TIVE PO
WER LE
VEL, Q/S (%)
ra
te
d
−60
Absorbing
Supplying
−50
−40
−30
−20
−10
0
V
V1
V
V2
V
V3
V
V4
10
20
30
40
50
60
INVERTER VOLTAGE, V
-
Cos Φ (P) curve : If the output power is
generated 50% or higher, the inverter outputs
the lagging reactive power according to the
active power response curve. This response is
supported only in Germany.
P/P
Emax
1 0.5 0.2
0.95
cos
Φ
0.95
1
over-excited
under-excited
8.4 Battery Management
• Backup SOC : The minimum SOC that the battery maintains in order to supply power to the load in
the case of Off grid.
- Battery SOC < Backup SOC (On-grid mode): Q.HOME CORE does not discharge the battery but
only performs charging operation.
• Charge Management : If the PV power is greater than the load power, the inverter charges the
battery. If the battery SOC reaches 100 %, the battery converter stops its operation not to be
overcharged.
•
Discharge Management
: Discharge Management effectively prevents the battery from being
damaged due to overcharge. If the battery SOC (State of Charge) reaches 5 % or the Backup SOC,
it limits the battery discharge.
• Cell balancing : If the inter-cell potential difference exceeds the threshold voltage, the PCS
automatically starts cell balancing control to prevent the battery from damage due to the potential
difference among battery cells.
• Parallel Connection : In the Q.SAVE parallel connection, internal module relays is not connected
if voltages are different between each battery module. Then, the battery management system
automatically controls charging/discharging power of each battery to achieve the identical Q.SAVE
voltage. When the voltage of each module becomes equal, the internal relays are connected.
Q.SAVE #1 Q.SAVE #2
Battery module
Relay board Relay board
BAT
IN
BAT
IN
BAT
OUT
BAT
OUT
Battery module