Performance Improvement of DFIG-based WECS with Non-Linear Load penetration using Additional DSTATCOM

The reactive power inadequacies associated with the Doubly-Fed Induction Generator-based Wind Energy Conversion System (WECS), when connected to the AC grid with the proliferation of non-linear load, results in poor power quality and deterioration in system performance. This paper addresses this challenge using an additional distributed static compensator (DSTATCOM) controlled by a novel adaptive algorithm. The proposed adaptive algorithm estimates the load current’s active and reactive weight components by considering changes associated with the system. The proposed algorithm is simulated in MATLAB, and the results are validated using the different case studies. The case studies verified the proposed algorithm’s effectiveness in improving the system’s performance by mitigating PQ issues as per the IEEE 519-2014 and EN 50160 international standards.