Rindho Saputra, Prestian (2023) Desain Sistem Kontrol pada Inverter untuk Antisipasi Beban Non-Linear saat Power Sharing. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Jika terjadi perubahan konsumsi beban pelanggan pada sistem suplai, maka konsistensi tegangan dan frekuensi suplai akan terganggu. Penelitian ini mengusulkan metode PI-LQR dengan modifikasi Sliding Mode Control untuk desain sistem kontrol yang mampu menjaga nilai tegangan dan frekuensi pada nilai konstan. Sistem kelistrikan berbasis Energi Baru Terbarukan (EBT) memiliki inverter sebagai converter DC/AC. Sistem Inverter memiliki sumber dan beban listrik yang terdesentralisasi dan biasanya beroperasi, terhubung, dan sinkron dengan sistem kelistrikan lainnya. Untuk dapat sinkron dengan sistem kelistrikan lainnya, maka diperlukan tegangan sumber EBT yang sama. Untuk itu diperlukan inverter yang berfungsi untuk merubah tegangan DC menjadi tegangan AC yang kemudian disalurkan ke sistem grid, baik off-grid maupun on-grid. Sedangkan untuk memenuhi kebutuhan energi saat terjadi perubahan beban non-linear pada sistem kelistrikan, teknik power sharing saat pola operasi paralel dapat diubah. Sistem pendekatan model sumber EBT dan beban dengan tegangan dan arus digunakan untuk mengumpulkan hasil percobaan ini. Hasil penelitian, yang dilakukan pada simulasi Matlab/Simulink yang menggunakan kombinasi desain kontrol power sharing dan sliding mode control (SMC), menunjukkan bahwa pada beban seimbang, nilai frekuensi terendah adalah 49.983 Hz, dan pada beban tidak seimbang, nilai frekuensi terendah adalah 49.982 Hz. Studi ini menemukan bahwa metode PI-LQR-SMC memiliki kinerja kontrol yang lebih baik daripada metode PI dan PI-LQR.
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If there is a change in customer load consumption in the supply system, the consistency of supply voltage and frequency will be disrupted. This study proposes the PI-LQR method with a modified Sliding Mode Control for the design of a control system that is able to maintain constant voltage and frequency values. The New Renewable Energy Source (RES)-based electricity system has an inverter as a DC/AC converter. Inverter systems have a decentralized source and load of electricity and usually operate, connect, and synchronize with other electrical systems. To be able to synchronize with other electrical systems, the same EBT source voltage is needed. For this reason, an inverter is needed that functions to convert DC voltage to AC voltage, which is then distributed to the grid system, both off-grid and on-grid. Meanwhile, to meet energy needs when there is a non-linear load change in the electrical system, the power sharing technique can be changed when the parallel operating pattern is changed. The EBT source and load model approach system with voltage and current is used to collect the results of this experiment. The results of the study, which were carried out in Matlab/Simulink simulations using a combination of power sharing and sliding mode control (SMC) control designs, show that at a balanced load, the lowest frequency value is 49,983 Hz, and at an unbalanced load, the lowest frequency value is 49,982 Hz. This study found that the PI-LQR-SMC method had better control performance than the PI and PI-LQR methods.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | power sharing, paralel, sliding mode control |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1007 Electric power systems control T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2692 Inverters |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20101-(S2) Master Thesis |
| Depositing User: | Prestian Rindho Saputra |
| Date Deposited: | 24 Jul 2023 01:02 |
| Last Modified: | 24 Jul 2023 01:02 |
| URI: | http://repository.its.ac.id/id/eprint/98974 |
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