SUN2000-(55KTL, 60KTL) Series
User Manual
2 Overview
Issue 02 (2017-07-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
13
Working Modes
The SUN2000 can work in standby, operating, or shutdown mode.
Figure 2-11
shows the
relationship between the three working modes.
Figure 2-11
SUN2000 working modes
Table 2-4
describes the three working modes shown in
Figure 2-11
.
Table 2-4
Working mode description
Working
Mode
Description
Standby
The SUN2000 enters the standby mode when the external environment does
not meet the requirements for starting the SUN2000. In standby mode:
The SUN2000 continuously performs self-check and enters the operating
mode once the operating requirements are met.
If the SUN2000 enters the shutdown mode after detecting a shutdown
command or a fault after startup.
Operating
In operating mode:
The SUN2000 converts DC power from PV strings into AC power and
feeds the power to the power grid.
The SUN2000 tracks the maximum power point to maximize the PV
string output.
The SUN2000 enters the shutdown mode after detecting a fault or a
shutdown command, and enters the standby mode after detecting that the
PV string output power does not meet the requirements for grid-tied
electricity generation.