APsystems 4305109902 Microinverter Night Consumption Instructions
- June 5, 2024
- APsystems
Table of Contents
APsystems 4305109902 Microinverter Night Consumption
APsystems Microinverter Night Consumption
According to the feedback of some installers, a fairly high current can still
be detected when th APsystems microinverter stops working at night. If the
current is multiplied by the grid voltage, it results in a power loss value
greater than 20W, which is actually the Apparent Power. The real power
consumption
charged by the electric power company
= Apparent Power* Power Factor.
The following terms are used to describe energy flow in a simulated AC grid-tied system:
- Active Power (P): Watt [W] , active power is the real consumed power by load which is measured and charged by the electricity company.
- Apparent Power (S) = Grid Voltage*Grid Current
- Power Factor (PF) = Real power (P) / Apparent power (S)
The calibrated AC Power Analyzer is applied to this experiment. A DS3 microinverter is connect to the local grid (220VAC) without being in operation, to simulate night consumption.The real power consumption (active power) in the microinverter is calculated based on the following :
- P= S X
- PF = 226.583
- 0.09314
- 0.00063 = 13.2mW
The result is consistent with the value “0.013W” on the AC Power Analyzer.