Doubly-Fed Induction Generators (DFIGs) play a crucial role in variable-speed wind energy systems, as they efficiently convert energy, require only partial-scale converters, and are easily adaptable to the grid's changing conditions. Historically, Rotor-Controlled DFIGs (RC-DFIGs) manage torque by utilizing back-to-back converters on the rotor, with the stator directly connected to the grid. Recent research has focused on SC-DFIGs and their ability to alter stator-side values, albeit through direct fixed-frequency rotor excitation. This offers the potential for hardware simplification and enhanced resilience. This research initiates the examination of configurations across sub-synchronous, synchronous, and super-synchronous operational modes with emphasis on voltage dips and reactive power transients in HVDC Light–integrated wind energy systems. We don't use static benchmarks; instead, we examine how each dominating topology reacts to changing grid conditions, such as rapid voltage sags and reactive power transients. A unified dq-axis model is created to make sure that all effects are captured with the right level of detail. This model enables us to closely study and accurately predict electromagnetic torque response, rotor current behavior, and harmonic distortion. Our simulations demonstrate that SC-DFIGs are more effective for handling dynamic transients, rotor current management, and harmonic suppression. These changes enhance the low-voltage ride-through (LVRT) capabilities, a requirement for modern grid standards. Additionally, an economic case study of a 3.3 MW wind turbine reveals that SC-DFIGs can reduce costs by approximately 13.7% due to their absence of slip-ring assemblies and the ease of their construction. These findings collectively indicate the practical feasibility of SC-DFIGs for HVDC Light–connected wind farms, hybrid AC–DC systems, and flexible frequency transmission networks.