The common types of inverters on the market today are pure inverters, micro inverters and so on.
The main function of a pure inverter is to convert direct current (DC) to alternating current (AC), and its design goal is to focus on a single inverter task, i.e., to convert DC power from some kind of DC power source (e.g., solar panels, battery storage systems, fuel cells, etc.) to AC power that meets the requirements of the grid standard or other power-using equipment.
Micro-inverters are suitable for small systems or occasions with severe localized shadowing, and can achieve maximum power tracking at the component level. It is small and lightweight, easy to install in various locations of the PV array without considering the series-parallel relationship between components, and the system expansion can be achieved by simply increasing the number of microinverters accordingly.
Some of the inverters are pure sine wave inverters, which are capable of delivering pure sine wave AC power comparable to the utility grid, which is of extremely high quality and suitable for connecting all types of AC loads. Pure sine wave inverters are capable of driving loads of various natures, including inductive loads (e.g., motors) and capacitive loads (e.g., capacitors), and can support complex mixed load situations.