Yang, L., Yang, J., Gao, M., Watson, A., & Wheeler, P. (2021). Current Control of LCL-Type Shunt APFs: Damping Characteristics, Stability Analysis, and Robust Design against Grid Impedance Variation. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9(4), 5026-5042. https://doi.org/10.1109/JESTPE.2020.3017551