Abstract: To reduce greenhouse gas emissions, the integration of clean energy represented by wind power into the grid has been implemented on a large scale. Addressing the challenges associated with absorbing the high proportion and fluctuating wind power has become an crucial concern for modern power systems. In this context, the flexible adjustment capability of active and reactive power of voltage source converter (VSC) based multi-terminal high voltage direct current (VSC-MTDC) system is incorporated into the security-constrained unit commitment (SCUC). A three-stage scheduling framework, consisting of day-ahead unit commitment, short-term real-time adjustment and rescheduling, is designed. Meanwhile, a three-level iterative solution method is developed based on the column-and-constraint generation algorithm (C&CG). The conservative nature of the traditional two-stage robust unit combination is addressed and wind power consumption is improved. Moreover, to take full advantage of the VSC converter station's ability to independently adjust active and reactive power, the reactive power-voltage is optimized based on the solution of SCUC and solved using the Benders decomposition algorithm, which effectively reduced the system network loss. Finally, an improved IEEE 30-node system is utilized as an example for model’s feasibility and validity verification.