User's Manual

Table Of Contents
SmartLogger3000
User Manual
6 WebUI Operations
Issue 04 (2020-03-11)
Copyright © Huawei Technologies Co., Ltd.
123
Remote Communication Scheduling
The management system 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.
Parameter
Description
Active power control
mode
Set this parameter to Remote communication scheduling.
The SmartLogger parses the scheduling command delivered
by the upper-layer management system to valid instruction
data that can be identified by the solar inverters in the PV
plant and delivers the data to all solar inverters connected to
the SmartLogger.
As the Remote communication scheduling mode has a
higher priority, the SmartLogger automatically changes
Active power control mode to Remote communication
scheduling after receiving a scheduling command from the
upper-layer management system.
Schedule strategy
The value can be Disable, Strategy 1, or Strategy 2.
Disable: The SmartLogger controls the solar inverter to
work at full load and will not receive scheduling
commands sent by the management system.
Strategy 1: Open-loop scheduling policy. That is, the
SmartLogger evenly allocates the power value from the
scheduling and delivers the average value to each solar
inverter, which then operates with the specific power. The
adjustment value delivered by the SmartLogger is
constant. If Adjustment coefficient is set, the power value
will be sent to the solar inverter after being multiplied by
the preset coefficient.
Strategy 2: The customized function is provided for a
specific power plant. Set Overshoot, Adjustment period,
and Adjustment deadband based on the scheduling
requirements of the power plant.
Grid connection with limited power (kW)