Yandulskiy, O., Hulyi, V., Nesterko, A., Kovalenko, M., & Tymokhin, O. (2025). Improving the efficiency of secondary load frequency control in a power system considering internal tie-line power exchanges. Eastern-European Journal of Enterprise Technologies, 4(8 (136), 6–15. https://doi.org/10.15587/1729-4061.2025.336113