Method for controlling power electronic hybrid system

The invention discloses a method for controlling a power electronic hybrid system. The method comprises a power electronic hybrid control system comprising an active power filter and a static var compensator, wherein the static var compensator comprises a passive power filter group and a thyristor control reactor (TCR); and the active power filter, the passive power filter group and the TCR access between a power grid and loads connected with the power grid in sequence. The passive power filter and the active power filter are used jointly to perform harmonic suppression on high-voltage busbars; and the static var compensator is used to perform reactive compensation, so that delay compensation and online control are realized, control accuracy is enhanced, tracking performance is improved, electric energy loss of the power grid is reduced, and pollution of the power grid is purified.