What are inverters (Inverter)? Inverter is to convert Direct current (DC) into Alternating current (Alternating current). AC, household appliances, directly connected to sockets), in most cases the input DC voltage is normally low, while the output AC is equal to the voltage supplied by the grid, namely 120V, or 240V depending on the country.
Inverters can be used as standalone devices for applications such as cable solar power generation, or work as a backup power source for separately charged batteries. Another configuration is when it is part of a larger circuit, such as a power supply unit, or a UPS. In the case of power, it comes from the rectified alternating current in the UPS, in the case of power failure, it comes from the battery.
The inverter used in photovoltaic products and MPPT for maximum power tracking. By adjusting the DC voltage and output current, the element always operates at the maximal operating point and outputs the maximum power under current temperature and sunshine conditions. When the sunshine intensity and ambient temperature change, the input power of the photovoltaic module displays nonlinear changes. The photovoltaic module is neither a constant voltage source nor a constant current source, and its power changes with the change of the output voltage, which has no relationship with the load.
In addition, some inverters have two-way inverter function, not only DC to AC, but also AC to DC function, but typically above 2KW will be used, the reason is that the cost with this function will be greater.
The application scenarios of inverter are also many, such as: solar energy building (BIPV), photovoltaic power station, household lighting power supply, petroleum, ocean, meteorological field, communication/communication field, transportation field, user solar power supply and so on.