Abstract: In order to reduce the ride-through cost of the flexible high voltage direct current（HVDC） system with wind farm integration when a low-voltage fault occurs in the AC main grid, this paper proposes a grid fault ride-through strategy in which the DC energy dissipation equipment and the DC choppers in wind turbines work together. The wind farm will reduce its DC power output with the coordination of the sending-end converter during the grid fault. The DC energy dissipation equipment is only required to limit the DC voltage increase in the early stage of the grid fault before the output power of the wind farm have been reduced. Therefore, this strategy could greatly reduce the volume of the DC energy dissipation equipment. On this basis, the proposed strategy integrates the energy dissipation resistor of the DC energy dissipation equipment into the receiving-end modular multilevel converter, to further reduce the unloading cost. Finally, a simulation example of the flexible HVDC system with wind farm integration is constructed in the PSCAD/EMTDC simulation software, which verifies the correctness and effectiveness of the proposed fault ride-through method.