03511ntm a2200349 i 4500 0 0 lcc 0 0 REF 20000 20000 REF 2022-04-28 0 KK .P43 2021 r Thesis T000001850 2022-06-09 00:00:00 1 2022-04-28 THESIS 0 0 lcc 0 0 REF 20000 20000 REF 2022-04-28 0 CD13091 T000001851 2022-04-28 00:00:00 1 2022-04-28 THESIS 97105 97111 MY-KuUP 20251125110041.0 t||||fr|||| 000 0 220428s2021 my a|||frm||| 000 0 eng d THE0009352(Local) hardback UMP eng UMP rda KK .P43 2021 r Thesis Peddakapu Kurukuri, author. Frequency deviations stabilizations in restructured power systems using coordinative controllers / Peddakapu Kurukuri Kuantan, Pahang : UMP, 2021 © 2021 xvi, 189 pages : illustrations (some color) ; 30 cm. + 1 CD ROM text rdacontent text rdacontent unmediated rdamedia computer rdamedia volume rdacarrier computer disc rdacarrier text file PDF rda College of Engineering Thesis (Doctor of Philosophy) -- Universiti Malaysia Pahang – 2021 Modern restructured power system faces excessive frequency aberrations due to the intermittent renewable generations and persistently changing load demands. An efficient and robust control strategy is obligatory to minimise deviations in the system frequency and tie-line to avoid any possible blackout. Hence, in this research, to achieve this target, automatic generation control (AGC) is utilized as a secondary controller to alleviate the changes in interconnected restructured systems at uncertainties. The objective of AGC is to quickly stabilize the deviations in frequency and tie-line power following load fluctuations. This thesis addresses the performance of AGC in two-area restructured power systems with many sophisticated control strategies in the presence of renewable and traditional power plants. As per literature of research work, there are quite a few research studies on AGC of a restructured system using optimized coordinative controllers. Besides, investigations on advanced optimized-based coordinative controller approaches are also rare to find in the literature. So, various combinations of two degrees of freedom (2DOF) controllers are utilized as supplementary controllers to diminish the frequency deviations. Nevertheless, the interconnected tie-lines are typically congested in areas with huge penetration of renewable sources, which may reduce the tie -line capability. Therefore, distinct FACTS controllers and ultra-capacitor (UC) are integrated into two-area restructured systems for strengthening the tie-line power and frequency. Further, new optimization techniques such as cuckoo search (CS), bat algorithm (BA), moth-flame optimization (MFO) are utilized in this work for investigating the suggested 2DOF controllers and compared their performance in all contracts of restructured systems. As per the simulation outcomes, the amalgamation of DPFC and UC with MFObased 2DOF PID-FOPDN shows low fluctuation rate in frequency and tie-line power. Besides, the settling times (ST) of two areas are 9.5 S for ΔF1, 8.2 S for ΔF2, and 10.15 S for ΔPtie. The robustness of the suggested controller has been verified by ±25% variations in system parameters and loading conditions. College of Engineering Dissertations Universities and colleges Dissertations Theses lcc THESIS