Wigaswara, Yoanes Bagus Nugraha (2017) Aliran Daya Optimal Dengan Batas Keamanan Sistem Mempertimbangkan Energy Storage. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan energi listrik adalah sebuah kebutuhan pokok yang harus terpenuhi. Untuk itu dibutuhkan perencanaan operasi sistem tenaga yang baik agar dapat memenuhi kebutuhan beban dengan tepat. Namun, dalam sebuah pengoperasian sistem tenaga listrik tidak dapat terlepas dari sebuah gangguan yang mengakibatkan kegagalan operasi pada sistem. Security Constrained Optimal Power Flow digunakan untuk melakukan perencanaan pembangkitan dengan mempertimbangkan batasan keamanan sistem berupa kontingensi pada saluran di sistem tenaga. Metode quadratic programming digunakan untuk menyelesaikan optimasi tersebut. Kontingensi dapat terjadi pada waktu tertentu dalam suatu rentang waktu operasi dalam sehari. Adanya pertimbangan kondisi kontingensi pada sistem menghasilkan pembangkitan yang berbeda dan biaya pembangkitan yang lebih mahal hingga 0.4% akibat adanya penyesuaian pembangkitan untuk memastikan dispatch ulang yang terjadi dapat memenuhi batasan operasi pada kondisi kontingensi. Ketika terjadi kontingensi re-dispatch dilakukan untuk memenuhi perubahan batasan operasi yang ada, hal inilah yang menyebabkan dibutuhkan penyesuaian pembangkitan agar re-dispatch tidak melanggar batasan ramp rate dan juga kapasitas saluran. Penambahan energy storage ke sistem mempengaruhi pembangkitan selama rentang waktu operasi. Dengan adanya energy storage pada sistem dapat mengurangi biaya operasi pada sistem hingga 1.6% dan membantu ramp rate pembangkit dalam memenuhi batasan operasi kondisi kontingensi, serta menurunkan aliran daya saluran yang mengalami kontingensi hingga 1.2%.
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The need of electricity is a basic need that must be met. For that, the good operation planning of power system is required to statisfied the load needed with a minimal price. However, in an operation of power system, it can’t be separated from a disturbance that leads to contingency which requires to outage the generator or the transmission line on the system. Security Constrained Optimal Power Flow is introduced to peform the operation planning of generation by considering the system security in the form of contingency on the line transmission in power system. Quadratic programming method is used to complete the optimization. Contingency can occur at specific time during the operation time in a day. Considering contingency can affect the generation and operation cost, the cost can be higher to 0.4% than the generation cost without considering contingency. When contingency occurs, generator must perform a re-dispatch to ensure all constraints satisfied, because of that it’s require generated adjustment to ensure, that re-dispatch doesn’t violate the ramp rate and line capacity. The addition of energy storage to the system effect the dispatch of the generator during the operation time. With the energy storage in the system can reduce the operating cost on the system up to 1.6% and help the ramp rate of the plant in meeting the contingency condition operating limits, as well as reduce the power flow of line in contingency up to 1.2%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 621.319 Wig a-1 |
| Uncontrolled Keywords: | security constraint, DCOPF, energy storage, quadratic programming |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Yoanes Bagus Nugraha |
| Date Deposited: | 14 Nov 2017 03:25 |
| Last Modified: | 05 Mar 2019 07:50 |
| URI: | http://repository.its.ac.id/id/eprint/43165 |
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