AUTHOR=Luo Ke , Jiao Yingying , Zhu Jiawei TITLE=Corrigendum: Perturbation Observer Based Fractional-Order Control for SMES Systems Based on Jellyfish Search Algorithm JOURNAL=Frontiers in Energy Research VOLUME=10 YEAR=2022 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.887998 DOI=10.3389/fenrg.2022.887998 ISSN=2296-598X