68
⚫
自检状态
Self-inspection Status
逆变器开始并网运行前对自身硬件进行检测的状态，该状态需要
检测：
PV
绝缘阻抗、直流电压采样、交流电压采样等关键量。
This state indicates that the inverter is testing its hardware before the
inverter starts grid-connected operation; key factors need to be tested
under this state, including
PV
insulation resistance,
DC
voltage sampling
and
AD
voltage sampling.
⚫
运行状态
Running status
在此状态下，逆变器处于并网运行状态，将光伏阵列的直流电能
变换为交流电并入电网，并且逆变器始终以最大功率跟踪方式向电网
输送最大电能。
Under this state, the inverter is in a grid-connected operation state,
and converts the
DC
electric energy of the
PV
array into the
AC
electric
energy injected into the grid in the maximum power tracking mode.
5.1.2
模式转换
Mode Conversion
The operating mode switch of the system is shown in Figure 5-1.
