SmartLogger1000
User Manual
8 Power Grid Scheduling
Issue 12 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
259
Figure 8-5
Percentage fix limitation
If the inverter needs to run with specified maximum power in certain periods of a day, add setting
records based on site requirements.
When multiple time points are set, the inverter will run with the maximum power specified for the
time point that is earlier than and the closest to the system current time point. For example, if you
add 00:00:00 and 12:00:00 on the WebUI and the system current time point is 14:30:00, the inverter
will run with the maximum power specified for 12:00:00.
8.2.4 Remote Scheduling
The NMS or independent power adjustment device sends scheduling commands over the
communications port that works with Modbus-TCP or IEC104, without the need of user
configuration or operation. The SmartLogger can automatically switch between scheduling
modes and send scheduling commands.
When
Active power control mode
is set to
Remote scheduling
, the SmartLogger receives
the scheduling commands from the upstream NMS, converts them into valid command data
identifiable to the inverters, and then sends the data to all the connected inverters. Based on
the principle of preference of remote scheduling, the SmartLogger sets
Active power control
mode
to
Remote scheduling
after receiving a scheduling command from the upstream NMS.