What kind of functions did the inverter have in the solar power system

The inverter is an essential part of a PV system, the main function is to transfer the DC power in the battery panel into AC power that used by home appliances, so that to achieve an inverter function. But in addition to the inverter, what else did it carry?

1, MPPT function to ensure that maximize the output power
Solar panel’s current and voltage are changed according to the intensity of solar radiation and the solar cell module itself temperature, and therefore the power output will change too, in order to ensure the maximize of the output power, it is necessary to obtain the maximum possible output power of the solar panels. The inverter’s MPPT tracking function is designed for this feature, also called MPPT tracking maximum power point tracking, As estimates, the configuration of MPPT tracking system compared with the systems that not installed generating capacity MPPT tracking, the output power are higher 50%.
So ,if you wanna more of the PV systems electricity, do not just look at solar panels, how much electricity can be effectively output in the solar panel, it depend on the inverter.
2. anti-alone operation function, to protect the safety of the power grid.
When install the on and off grid solar power system, many people are holding the idea that” Even if the power outage, we can also use it” but they doesn’t know when the power outage, their home PV system will also stop functioning.
The reason for this phenomenon is the inverter have equipped with anti-islanding device, when the grid voltage is 0, the inverter will stop working. Let me explain to you, Anti-islanding device is a necessary means for all the grid-connected inverter. The main function is for the safety of it. Just imagine, when the power outage, power workers have been on the circuit for maintenance, while your home PV power system still continuously upload, it is easy to cause accidents.
If you really want use electricity when power outage, you can consider the off grid solar system,  then, usually the solar panels will store electricity, when you need it, it can be use at usual.3.According to solar panel’s output power automatically operation and shutdown.
When the sun rise in the morning, the intensity of the solar radiation are increasing, when reaches the desired output power, the inverter start to operation. After operation, the inverter will always monitor the output of the solar cell module, as long as the required output power of the solar cell module output power is greater than the inverter operation, the inverter will continue to running; it will stop until sunset, even in the rainy days. When the solar cell module output became smaller, inverter output is closed to 0, the inverter will form a standby state.
It is visible that the inverter played a very important role in the whole run of the system, it’s an indispensable part. Known as the heart of the PV system.