ANTI-DRAGGING SYSTEM AND WIND TURBINE GENERATOR SYSTEM

The present disclosure provides reverse dragging systems and wind turbines, the reverse dragging system includes a converter including a first full-bridge (101), a second full-bridge (102) and a DC Link; when the converter of the reverse dragging system is for reverse dragging, the converter is configured as follows: the first full-bridge (101) and the second full-bridge (102) are electrically connected back-to-back through the DC Link; an AC port of the first full-bridge (101) is disconnected from an external AC power supply (2) and is electrically connected with an AC port of the second full-bridge (102); the DC Link is for electrical connection with an external DC power supply; and the AC port of the second full-bridge (102) functions as an output terminal (P2) of the reverse dragging system. The reverse dragging system of the present disclosure has strong load-carrying capacity and can provide stable output performance.