Each solar panel has a small inverter directly connected to it, called a microinverter. Microinverters are small and lightweight inverters connected to each solar plane. Since each solar plane works independently, a failure at a certain point will not degrade the performance of the entire system.
The inverter is the most critical part of the solar system. Solar panels produce DC output. The inverter converts it into usable AC power. The inverter is also used to monitor the system to analyze its performance. In the case of the central inverter, if one panel is damaged, all solar panels connected to it will lose performance.
Maximum Power Point Tracking (MPPT): MPPT is a technique used to find the specific value of the inverter voltage that generates the most power. For solar systems with micro-inverters, MPPT is applied to each solar panel, thereby improving the overall performance of the system.
There is no single point of failure: If any solar panel or micro-inverter fails, it will not affect the entire system, and the rest of the functional panels can still operate normally.
Panel intelligent monitoring: Since the micro-inverter is attached to each solar panel, a single panel can be monitored, and individual performance reports for each panel can also be obtained.
In the case of a central inverter, it is very difficult to expand the solar system. People have to buy a new central inverter, which can be expensive. On the other hand, it is easier to extend the solar system with microinverters.
Micro-inverters do not require high voltage to operate, thereby improving the safety of solar energy systems and system owners. Microinverters have a longer warranty because they are less affected by high voltage and high power loads.
Compared with the central inverter, the initial cost of the microinverter is higher. Because micro-inverters have a longer service life and simpler installation methods, they are a better choice.
The working principle of the dual micro inverter is exactly the same as that of the conventional micro inverter, the only difference is that the dual micro-inverter is connected to two solar panels instead of one. This can reduce costs, but performance will be affected.