Coordinated operation of fuzzy‐based TCSC and SMES for low‐frequency oscillation damping in interconnected power systems

Summary Modern power networks are enormously complex and frequently interconnected by weak tie‐lines, which results in a variety of stability issues such as low frequency oscillations (LFOs). LFOs can have negative impact on system tie‐line transmission capacity, resulting catastrophic blackouts if suitable damping control mechanisms not situ. This article demonstrates robust design for inter‐area LFO an system. A new comprehensive approach is presented, integrates the thyristor controlled series compensator (TCSC) superconducting magnetic energy storage (SMES) to improve critical modes. An intelligently designed fuzzy logic (FLC) employing global stabilizing feedback signal constitutes supervisory controller. The obtained based observability modes using participation factor (PF) analysis. Moreover, maiden application recently proposed optimization algorithm, K‐means optimizer (KO), employed simultaneously tune parameters FLC coordinated operation SMES TCSC. To validate robustness scheme, several case studies performed Kundur's two‐area multi‐machine test comparison with residue‐based controller was also done demonstrate superior efficacy KOFLC