A Novel Intelligent Control Approach for Wind Energy Conversion Systems with Synchronous Reluctance Generators

This study addresses a significant research gap in the field of wind energy, focusing on the underutilized potential of synchronous reluctance generators (SynRG) in wind power conversion systems (WPCS). Despite notable advancements in wind energy controls, the capabilities of SynRG within these systems have not been fully explored. In response, we introduce an innovative model-free control (MFC) approach, termed intelligent proportional (iP), specifically designed and optimized for WPCS equipped with SynRG. This research encompasses the modeling, control, and simulation of SynRG-based WPCS, aiming to optimize system performance and enhance the quality of grid power supply. The proposed vector control (VC) method utilizes a MFC approach (VC-iP) to address the limitations inherent in traditional VC methods with proportional-integral (PI) controllers (VC-PI). Although widely used for their simplicity, VC-PI methods often lead to power fluctuations and decreased power and current quality, consequently reducing overall system efficiency. In contrast, VC-iP markedly enhances power quality and system efficiency, especially in situations involving fluctuating power demand and variable wind speeds. The efficacy of VC-iP is demonstrated through simulations in two distinct test scenarios that include variations in power demand and random wind speed fluctuations. The results affirm the superiority of VC-iP in maintaining stable, high-quality power output from WPCS. This method notably minimizes fluctuations, improves current quality, reduces harmonic distortion and steady-state error, ensures reliable grid integration, and contributes to a more efficient and sustainable energy system. This study unlocks the potential of synchronous reluctance generators (SynRG) in wind farms by proposing a novel vector control strategy with an intelligent proportional (iP) controller. Compared with traditional proportional-integral (PI) controllers, the iP controller effectively minimizes active and reactive power ripples, thereby improving grid stability and power quality. Simulations showcased its superiority, highlighting reduced steady-state errors and enhanced overall system stability. This approach extends to minimizing total harmonic distortion in grid current, promoting cleaner and more sustainable energy systems. image