Bo Long Peng Jie Lu Kil To Chong 0001 José Rodríguez 0001 Josep M. Guerrero Robust Fuzzy-Fractional-Order Nonsingular Terminal Sliding-Mode Control of LCL-Type Grid-Connected Converters. 5854-5866 2022 69 IEEE Trans. Ind. Electron. 6 https://doi.org/10.1109/TIE.2021.3094411 db/journals/tie/tie69.html#LongLCRG22