ABSTRACT The integration of renewable energy sources, particularly wind farms, into modern power systems requires advanced transmission technologies. High voltage direct current (HVDC) systems, especially in multi‐terminal configurations (MTDC), are effective for transferring high power to the grid. However, there are concerns about the interaction of HVDC controllers with other devices of the system, which can lead to instability in the power system. Additionally, the complexity of new systems, due to the integration of power electronics and control systems, increases the potential for interaction with the torsional modes of the wind turbine. This paper conducts a nonlinear modal analysis (NLMS) of hybrid MTDC systems connected to wind farms, examining component interactions and their stability on impact. (NLMS is employed as the primary analytical method. The results obtained from this method are compared with those from linear modal analysis and the fourth‐order Runge‐Kutta (RK4) method.By using the NLMS technique, it reveals insights into complex interactions under various conditions and quantifies how controller parameters affect stability. This research enhances the understanding of dynamics in hybrid HVDC systems and lays the groundwork for future studies and practical applications in resilient power network design and operation.
Ziaei et al. (Wed,) studied this question.