Situation:
- Solar PV farm has a 1 MW-peak capacity.
- The inverter output is set to 50%.
Overloading of the inverter occurs when the DC power of a PV array exceeds the maximum input rating of the inverter. In this case, the inverter can adjust the DC voltage to reduce the input power, which can be done by increasing the voltage and reducing the DC current. Overloading the DC side of these inverters can void the warranty, so installers should check the maximum DC/AC ratio on the manufacturer's data sheet.
Dear Supawish Vuthiwongvarakorn
Generally, A higher array-to-inverter ratio may work for your system if your solar panels will not produce at their maximum power output due to the factors mentioned above. When this happens, the inverter will limit the amount of energy it's converting, resulting in power losses from your solar panel system.
Hope this helps.
The array operating point will move off the maximum power point and the power out of the inverter will be limited by the inverter, not the array. I also agree with Abdelouadoud and Qamar.
- Badges
- Science topic