System for adjusting electric energy quality of isolated network and capacitive energy storage equipment thereof

The utility model discloses a system for adjusting the electric energy quality of an isolated network and capacitive energy storage equipment thereof, and the capacitive energy storage equipment is applied to the isolated network. Comprising a capacitor bank used for storing and releasing energy, at least one rectifying circuit used for converting alternating-current electric energy and direct-current electric energy, a direct-current switching circuit electrically connected between the capacitor bank and the rectifying circuit, and at least one filtering circuit electrically connected with the rectifying circuit and used for filtering input current, the transformer is electrically connected with the filter circuit and used for boosting or reducing voltage of input electric energy, and the high-voltage switch circuit is electrically connected between the transformer and a medium-voltage bus of an isolated network. The capacitive energy storage device ensures stable operation of a power grid under power supply