Posters

Abstract

The work focuses on optimizing the system configuration of offshore wind farms to enhance efficiency and meet European Connection Conditions (ECC). The study evaluates three configurations for reactive power and voltage control: Fixed Shunt Reactor with STATCOM (Case 1), Variable Shunt Reactor (VSR) with STATCOM (Case 2), and Mechanically Switched Reactors (MSRs) with STATCOM (Case 3). Case 1 uses fixed shunt reactors permanently connected to the wind farm, providing constant reactive power consumption. This configuration is the most economical but lacks operational flexibility. In contrast, Case 2 features VSRs equipped with on-load tap changers, allowing dynamic adjustment of reactive power based on wind farm generation. This setup offers better technical performance and flexibility but comes at a higher cost. Case 3 involves MSRs connected to the tertiary of the onshore transformer, which can be switched on or off based on generation. This configuration optimizes reactive power response and reduces STATCOM size but is the most expensive and involves higher maintenance risks. The study includes detailed simulations and a comparative analysis of technical, economic, and risk factors for each configuration. Key aspects evaluated in the study include equipment loading, reactive power capability, voltage control, and equipment sizing. The findings suggest that while Case 1 is the most cost-effective, Case 2 provides the best balance between cost and technical performance. Case 3 offers good flexibility and control but at a higher cost and risk. Overall, the presented work aims to provide insights into the trade-offs between flexibility, cost, and technical performance in selecting reactive power compensation strategies for offshore wind farms. This knowledge is crucial for making informed decisions about optimizing performance, managing costs, and mitigating risks effectively in large-scale offshore wind projects.