Studi Keamanan Sistem Interkoneksi 500 KV Jawa-Bali Ditinjau Dari Kestabilan Steady State Dengan Mempertimbangkan Voltage Sensitivity

Afkari, Muhammad Adib (2022) Studi Keamanan Sistem Interkoneksi 500 KV Jawa-Bali Ditinjau Dari Kestabilan Steady State Dengan Mempertimbangkan Voltage Sensitivity. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kebutuhan pasokan listrik yang semakin meningkat setiap tahun perlu diperhatikan guna mencegah gangguan kelistrikan akibat ketidakstabilan sistem. Seiring dengan perubahan beban diperlukan adanya analisis kestabilan steady-state yang sangat penting bagi perencanaan operasi sistem tenaga listrik. Salah satu cara yang dapat digunakan untuk menentukan batas kestabilan steady-state adalah dengan menggunakan Kurva-PV dan Kurva-QV. Kedua kurva tersebut akan menunjukkan batasan daya pada beban sebelum terjadinya collapse pada sistem. Kestabilan steady-state juga perlu mempertimbangkan voltage sensitivity untuk meningkatkan
nilai keandalan sistem interkoneksi 500kV Jawa-Bali. Pada simulasi voltage sensitivity, terdapat 5 bus 500 kV yang memiliki sensitivitastegangan paling besar yaitu Cibinong, Tambun, Depok, Bekasi, dan Gandul. Sehingga direkomendasikan untuk pemasangan capasitor bank pada bus tersebut. Pada studi keamanan kestabilan steady-state sistem interkoneksi 500 kV Jawa-Bali melalui kurva PV dan kurva QV, sistem masih dalam batas aman. Hal itu ditunjukkan melalui nilai beban existing yang lebih kecil dari titik voltage collapse. Sehingga sistem tidak mengalami collapse ketika terjadi penambahan beban secara terus menerus. Batasan transfer
daya steady-state didapat melalui simulasi kurva-PV dengan memperhatikan titik voltage collapse dan juga batasan tegangan PLN 0,9 p.u. Dari hasil simulasi didapatkan bahwa margin terdekat antara batas aman transfer dengan transfer daya existing berada pada Bus Kediri 500 kV dengan nilai selisih 3186 MW.
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The need for electricity supply that increases every year needs to be considered in order to prevent electrical disturbances due to system instability. Along with the changes required, there is a steady-state stability analysis which is very important for planning the operation of the electric power system. One way that can be used to determine the steady-state stability limit is to use the PV-curve and the QV-curve. The two curves will show the power limit of the load before the system collapses. Steady-state stability also needs to consider voltage sensitivity to increase the value of the Java-Bali 500kV interconnection system. In the voltage sensitivity simulation, there are 5 500 kV buses that have the greatest voltage sensitivity, namely Cibinong,
Tambun, Depok, Bekasi, and Gandul. Hence, it is recommended to install a capacitor bank on the bus. In the safety study of the stability of the 500 kV Java-Bali interconnection system through the PV curve and QV curve, the system is still within safe limits. This is indicated by the value of the existing load which is smaller than the point of collapse stress. So that the system does not collapse when there is a continuous increase in load. Steady-state power
transfer limits are obtained by simulating the PV-curve by considering the voltage collapse point and also the PLN voltage limit of 0,9 p.u. From the simulation results, it is found that the closest margin between the safe transfer limit and the existing power transfer is on the 500 kV
Kediri Bus with a difference of 3186 MW.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Kestabilan Steady-State, Kurva-PV, Kurva-QV, Voltage Sensitivity, Collapse, Steady-State Stability, PV-Curve, QV-Curve, Voltage Sensitivity.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive.
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	- Davi Wah
Date Deposited:	05 Dec 2022 07:04
Last Modified:	06 Dec 2022 07:22
URI:	http://repository.its.ac.id/id/eprint/95138

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