Reliability Improvement of Composite Power System using UPFC
E. Sreeshobha1, E. Vidyasagar2
1Dr. E. Sreeshobha, Department of Electrical Engineering, University college of Engineering(A) Osmania University, Hyderabad (Telangana), India.
2Prof. E. Vidyasagar, Department of Electrical Engineering, University college of Engineering(A) Osmania University, Hyderabad (Telangana), India.
Manuscript received on 28 May 2023 | Revised Manuscript received on 04 June 2023 | Manuscript Accepted on 15 June 2023 | Manuscript published on 30 June 2023 | PP: 94-98 | Volume-12 Issue-5, June 2023 | Retrieval Number: 100.1/ijeat.E41980612523 | DOI: 10.35940/ijeat.E4198.0612523
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Together with quality power supply criteria, Composite Power System (CPS) reliability is also one of the crucial aspects of deciding the security of the CPS for a given load demand. In the current paper, the reliability of CPS is evaluated. The Newton-Raphson (NR) approach is implemented in the Power System Simulation for Engineering (PSSE) software to account for load flows, thereby determining the power available to the load points, and to evaluate the reliability of CPS. The Newton-Raphson NR Method was implemented by considering different contingencies of the CPS. Power available to the load points obtained by the NR method is critical in identifying the successful operating state of the CPS. Expected Load Curtailment (ELC), Number of Load Curtailment (NLC), Expected Energy Not Supplied (EENS), and Severity Index (SI) are the crucial dependability indices that are assessed. The primary objective of the Reliability evaluation of the CPS is to investigate the scope for improving reliability and explore possible schemes to enhance CPS reliability. The Unified Power Flow Controller (UPFC), one of the Flexible AC Transmission Systems, is incorporated into the CPS to analyse the improvement in system reliability. Furthermore, the effect of UPFC on the power-carrying capacity of the lines under contingency conditions, which results in the failure mode of CPS operation, is examined. Improvements in the reliability indices of the system are observed due to the incorporation of UPFC.
Keywords: Composite Power System, EENS, Reliability, UPFC
Scope of the Article: Composite Materials