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Meylikulov, Shakhboz, Fakhriddin, Isayev, Madina, Kochkarova, Muhammadi, Turayev, Musabekov, Zakirjon, Farxodjon, Ochilov, Anarboyevich Nurmanov, Ulugbek. (1404). Dynamic Modeling and State Feedback Control for Enhancing Small Signal Stability in Islanded Microgrids with Diesel Generator Frequency Damping. سامانه مدیریت نشریات علمی, 13(Special Issue), 29-43. doi: 10.22098/joape.2025.18912.2465
Shakhboz Meylikulov; Isayev Fakhriddin; Kochkarova Madina; Turayev Muhammadi; Zakirjon Musabekov; Ochilov Farxodjon; Ulugbek Anarboyevich Nurmanov. "Dynamic Modeling and State Feedback Control for Enhancing Small Signal Stability in Islanded Microgrids with Diesel Generator Frequency Damping". سامانه مدیریت نشریات علمی, 13, Special Issue, 1404, 29-43. doi: 10.22098/joape.2025.18912.2465
Meylikulov, Shakhboz, Fakhriddin, Isayev, Madina, Kochkarova, Muhammadi, Turayev, Musabekov, Zakirjon, Farxodjon, Ochilov, Anarboyevich Nurmanov, Ulugbek. (1404). 'Dynamic Modeling and State Feedback Control for Enhancing Small Signal Stability in Islanded Microgrids with Diesel Generator Frequency Damping', سامانه مدیریت نشریات علمی, 13(Special Issue), pp. 29-43. doi: 10.22098/joape.2025.18912.2465
Meylikulov, Shakhboz, Fakhriddin, Isayev, Madina, Kochkarova, Muhammadi, Turayev, Musabekov, Zakirjon, Farxodjon, Ochilov, Anarboyevich Nurmanov, Ulugbek. Dynamic Modeling and State Feedback Control for Enhancing Small Signal Stability in Islanded Microgrids with Diesel Generator Frequency Damping. سامانه مدیریت نشریات علمی, 1404; 13(Special Issue): 29-43. doi: 10.22098/joape.2025.18912.2465

Dynamic Modeling and State Feedback Control for Enhancing Small Signal Stability in Islanded Microgrids with Diesel Generator Frequency Damping

Journal of Operation and Automation in Power Engineering
دوره 13، Special Issue، 2025، صفحه 29-43    اصل مقاله (3.78 M)
نوع مقاله: Research paper
شناسه دیجیتال (DOI): 10.22098/joape.2025.18912.2465
نویسندگان
Shakhboz Meylikulov* 1؛ Isayev Fakhriddin2؛ Kochkarova Madina3؛ Turayev Muhammadi4؛ Zakirjon Musabekov5؛ Ochilov Farxodjon6؛ Ulugbek Anarboyevich Nurmanov7
1Termez University of Economics and Service, Termez, Uzbekistan.
2Scientific Research Center Scientific Foundations and Problems of the Development of the Economy of Uzbekistan under Tashkent State University of Economics, Tashkent, Uzbekistan.
3Turin Polytechnic University in Tashkent, Tashkent, Uzbekistan.
4Kattakurgan State Pedagogical Institute, Samarkand, Uzbekistan.
5Tashkent State Technical University named after Islam Karimov, Tashkent, Uzbekistan.
6Tashkent State University of Economics, Tashkent, Uzbekistan.
7The Banking and Finance Academy of the Republic of Uzbekistan.
چکیده
Microgrids face significant challenges due to the stochastic behavior of distributed energy resources, which may excite low-damped oscillatory modes and compromise stability. This paper develops a unified small-signal model of an islanded microgrid and proposes a state-feedback controller (SFC) as a power system stabilizer (PSS) to enhance low-frequency damping in the diesel generator subsystem. The controller and inverter control parameters are tuned using a genetic algorithm (GA). Numerical results show that the proposed approach increases the damping ratio of the dominant electromechanical mode from 0.03 to 0.18 (a six-fold improvement) and reduces rotor-speed overshoot by nearly 60% under a 10% disturbance. Time-domain simulations further confirm a 70% reduction in settling time for rotor-angle deviations. These results demonstrate that the optimized SFC significantly improves electromechanical damping and strengthens the small-signal stability margin of the islanded microgrid.
کلیدواژه‌ها
Islanded microgrid؛ small-signal stability؛ state-feedback controller؛ power system stabilizer؛ genetic algorithm؛ diesel generator dynamics
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