User's Manual

65
table 10-1 Parameter description
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Control method
Open loop control: Remote monitoring
background is connected and active instruction
of remote dispatching is sent to the power output
port of the inverter, thereby achieving active
power control.
Closed-loop control:
• In case no Smart Energy Meter is selected,
remote monitoring background is connected,
active instruction of remote dispatching is
used as target value, and active power
compensation ratio is calculated and sent to
the power output port of the inverter. Generally,
this strategy is used for fast and accurate
active power regulation.
• In case a Smart Energy Meter is selected,
remote monitoring background is connected,
active instruction of remote dispatching is
used as target value, active power of the
meter needs to be collected and used as input
parameter, and active power compensation
ratio is calculated and sent to the power
output port of the inverter. Generally, this
strategy is used for anti-backflow or avoiding
zero power feed-in.
Query recovery time*
The Logger4000 receives the remote scheduling
command and will stop querying data during this
time period.
After the remote scheduling command is
executed, you can continue to query the data.
Frame delay*
The delay time of the message after the logger
sends the scheduling command.
Select energy meter/
transformer**
Select Smart Energy Meter / transformer involved
in power regulation.
Communication abnormality
output (%)**
Communication is abnormal, and specified
dispatch output value is delivered.
Error limit (%)**
Adjustment accuracy If the ratio of the difference
between the active power and the target value to
the rated power is within the set error range, the
target value is reached.
User Manual 10 Grid Dispatching