Perancangan Sistem Kontrol Pada Battery Energy Storage System (BESS) Untuk Sistem Generator Turbin Angin

Kurniasari, Sovi Aprila (2019) Perancangan Sistem Kontrol Pada Battery Energy Storage System (BESS) Untuk Sistem Generator Turbin Angin. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada sistem generator turbin angin, daya yang dihasilkan bergantung kepada kecepatan angin yang menggerakkan turbin. Pemanfaatan turbin angin sebagai pembangkit listrik terkendala karena karakteristik angin yang cenderung tidak teratur, fluktuatif, dan bervariasi. Salah satu metode yang bisa digunakan untuk mengatasi fluktuasi kecepatan angin adalah dengan memanfaatkan energy storage system (ESS) terutama Battery Energy Storage System (BESS). Baterai memiliki kapasitas penyimpanan energi tertentu sehingga energi yang masuk harus lebih kecil daripada kapasitas baterai. Baterai memiliki batas saat proses charge-discharge. Perbedaan arus yang dihasilkan oleh generator dengan batas arus yang diperbolehkan untuk charging ke baterai dapat menyebabkan penurunan lifetime pada baterai. Dengan demikian, diperlukan adanya suatu sistem kontrol untuk melakukan regulasi supply arus ke baterai, sehingga permintaan beban dapat terpenuhi dan dapat mencegah terjadinya overcharge dan penurunan lifetime pada baterai. Pada penelitian ini, arus yang masuk ke baterai dijaga agar tetap berada pada range operational nya yaitu maksimum sebesar 15A. Sistem kontrol pada BESS menggunakan kontroler PI dengan besar gain Kp yaitu 10 dan Ki juga bernilai 10. Dari penelitian yang telah dilakukan didapatkan hasil yaitu untuk perubahan nilai kecepatan angin dari 9 m/s - 17 m/s pada sistem generator turbin angin, diperoleh besarnya nilai arus untuk proses pengisian baterai yaitu rata-rata sebesar 14,9A dengan nilai error sebesar 0,53%, maximum overshoot sistem yaitu sebesar 0,11% dengan settling time yaitu sebesar 0,25 detik. ============== In a wind turbine generator system, the power generated depends on the wind speed that drives the turbine. The use of wind turbines as power plants is constrained due to wind characteristics that tend to be irregular, fluctuating and varied. One method that can be used to overcome wind speed fluctuations is by utilizing energy storage systems (ESS), especially Battery Energy Storage System (BESS). The battery has a certain energy storage capacity so the incoming energy must be smaller than the battery capacity. The battery has a limit during the charge-discharge process. The difference in current generated by a generator with a current limit that is allowed to charge to the battery can cause a decrease in battery lifetime. Thus, there is a need for a control system to regulate the current supply to the battery, so that load demands can be fulfilled and can prevent overcharge and decrease the lifetime of the battery. In this study, the current entering the battery is kept in its operational range, which is a maximum of 15A. The control system on BESS uses a PI controller with a gain of Kp which is 10 and Ki is also worth 10. From the research that has been done the results are for changes in the value of wind speed from 9 m / s - 17 m / s to the wind turbine generator system, obtained the current value for the battery charging process is an average of 14.9A with an error value of 0.53%, the maximum overshoot system is 0.11% with a settling time of 0.25 seconds.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Sistem Generator Turbin Angin, Battery Energy Storage System (BESS), Kontroler, Wind Turbine Generator System, Battery E nergy Storage System (BESS), Controller =========================================================== Wind Turbine Generator System, Battery Energy Storage System (BESS), Controller.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3030 Electric power distribution systems
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters.
Divisions: Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: SOVI APRILA KURNIASARI
Date Deposited: 04 Feb 2019 02:16
Last Modified: 04 Feb 2019 02:16
URI: http://repository.its.ac.id/id/eprint/61569

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