Background:
In a project in Liaoning, a 28KTL inverter with no command and power limit was displayed. The inverter was connected to the background and Huawei SmartLogger.
Problem Analysis
According to the inverter logs, there are two data about the energy yield of the inverter every day.
,
The time synchronization between the NMS and the SmartLogger is incorrect. The SmartLogger time is changed, causing abnormal energy yield.
Cause: The time synchronization between the NMS and the SmartLogger is faulty. As a result, the energy yield data is abnormal, and the calculation result is abnormal.
Solution: Adjust the time on the back-end NMS to be the same as that on the SmartLogger.
