An Adaptive Controlled Superconducting Magnetic Energy Storage for LVRT Improvement of DFIG
摘要
A novel application of the Maximum Versoria Criterion (MVC) algorithm is proposed for the superconducting magnetic energy storage (SMES) device to improve the low voltage ride-through (LVRT) capability for the grid-integrated doubly fed induction generator (DFIG). The MVC is an adaptive filtering algorithm (AFA) and is proposed in this work due to its high convergence speed, low normalized misalignment error (NME) and low computational complexity. The proposed MVC is applied in the voltage source converter (VSC) and the dc-to-dc converter of the SMES device to regulate the proportional-integral (PI) controller with high convergence speed during grid disturbances. To validate the performance of the MVC-PI controller, it is compared with the least mean square (LMS) algorithm and it is applied in the IEEE 39 bus system. The proposed control topology is implemented using MATLAB/Simulink software.