Analysis of Under Frequency Load Shedding System

Antonius  Rajagukguk; Edy  Ervianto; Firdaus Firdaus; Rian  Dika

doi:10.31258/ijeepse.7.1.46-54

Antonius Rajagukguk Universitas Riau, Pekanbaru, Indonesia
Edy Ervianto Universitas Riau, Pekanbaru, Indonesia
Firdaus Firdaus Universitas Riau
Rian Dika Universitas Riau, Pekanbaru, Indonesia

DOI: https://doi.org/10.31258/ijeepse.7.1.46-54

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pdf downloaded: 141 times

Keywords: Frequency Stability, Load Shedding, Under Frequency Load Shedding, Power Balance

Abstract

Load shedding is a protection scheme to maintain the stability of the electric power system. When there is an imbalance between the power generated and the load power, load shedding will release the load to restore power balance. This research aims to design and analyze the load shedding system at Private Company to see whether it is running well and meets the PRC-006-5 standard regarding the frequency operating limit, which must be in the range of 49.42 Hz to 50.58 Hz. The method that will be used in this research is to carry out testing with software and then analyze the power and frequency response due to the generator being removed from the system. The testing mechanism that will be carried out is to simulate the effect of a lack of power for the load supply on the load shedding system. From the research results, it is known that the existing load shedding scheme needs to be evaluated. Evaluation is carried out on steps 1 and 2, so that the load shedding limit for step 1 becomes 49.5 Hz and the pickup time for step 4 becomes 400 ms.

References

V. Pardede and M. Pujiantara, “Evaluasi Koordinasi Proteksi pada Sistem Kelistrikan PT. Pertamina RU II Dumai Akibat Integrasi dengan Jaringan PT. PLN,” vol. 10, no. 1, 2021.

T. Skrjanc, R. Mihalic, and U. Rudez, “Principal Component Analysis (PCA)-Supported Underfrequency Load Shedding Algorithm,” Energies (Basel), vol. 13, no. 22, p. 5896, 2020.

A. D. Priasmoro, “Skripsi Studi Static Under-Frequency Load Shedding Akibat Kondisi Transient Pada Sistem Kelistrikan PT. Petrokimia Gresik Aga Dia Priasmoro,” 2017.

S. Thaha, A. Rosyid Idris, and Nurjannah, “Analisis Pelepasan Beban (Load Shedding) Menggunakan Under Frequency Relay (UFR) Pada Gardu Induk Panakkukang,” 2021.

M. Rafsanjani, Retno, A. Diantari, S. Tinggi, and T. Pln, “Studi Laju Penurunan Frekuensi Pada Sistem Kelistrikan Sumatera Bagian Utara Dengan Skema Pelepasan Beban,” vol. 9, no. 2, 2019.

C. Li et al., “Continuous Under-Frequency Load Shedding Scheme for Power System Adaptive Frequency Control,” IEEE Transactions on Power Systems, vol. 35, no. 2, pp. 950–961, 2020.

C. Li, Y. Sun, and Y. Yu, “An Under-frequency Load Shedding Scheme with Continuous Load Control Proportional to Frequency Deviation,” IOP Conf Ser Mater Sci Eng, vol. 199, p. 012074, 2017.

S. Thaha, A. Adiyanti, Usman, and A. R. Sultan, “Implementasi Over Load Shedding (OLS) Pada Interbus Transformator (IBT) #3 31.5 Mva Dan IBT #5 31.5 MVA Di GI Tello 150/66 kV Untuk Menjaga Keandalan Suplai Ke GI Borongloe, GI Daya Dan GI Mandai Sarma,” vol. 19, no. 1, pp. 64–70, 2022.

E. M. Sartika, R. Sarjono, And R. S. Restianto, “Simulasi Sistem Otomasi Load Shedding menggunakan Prediksi Beban,” ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika, vol. 7, no. 1, p. 180, 2019.

G. Cai, S. Zhou, C. Liu, Y. Zhang, S. Guo, and Z. Cao, “Hierarchical under frequency load shedding scheme for inter-connected power systems,” Protection and Control of Modern Power Systems, vol. 8, no. 1, p. 34, 2023.

C. Ahendyarti and D. P. Utama, “Studi Skenario Kendali Load Shedding Sistem Tenaga Listrik PT Chandra Asri Petrochemical Tbk,” Jurnal Ilmiah Setrum, vol. 11, no. 1, pp. 179–187, 2022.

C. Li et al, “Continuous Under-Frequency Load Shedding Scheme for Power System Adaptive Frequency Control,” IEEE Transactions on Power Systems, vol. 35, no. 2, pp. 950–961, Mar. 2020.

S. S. Banijamali and T. Amraee, “Semi-Adaptive Setting of Under Frequency Load Shedding Relays Considering Credible Generation Outage Scenarios,” IEEE Transactions on Power Delivery, vol. 34, no. 3, pp. 1098–1108, 2019.

B. Potel, V. Debusschere, F. Cadoux, L. De, and A. Garcia, “Under-frequency Load Shedding Schemes Characteristics and Performance Criteria.”

N. Nuswantara, W. G. Ariastina, and A. A. N. Amrita, “Studi Kestabilan Sistem dan Pelepasan Beban (Load Shedding) Standar IEEE di PT. Pertamina (Persero) Refinery Unit IV,” 2017.