Kendali Arus dan Tegangan Pada Konverter DC-DC Boost Dengan Metode Kaskade Proportional Integral Derivative
Keywords:
Dynamic, steady state, Kaskade PIDAbstract
Kendali diperlukan untuk konverter DC-DC pada implementasi berbagai bidang ketenagalistrikan dan industri. Penelitian ini mengusulkan kendali arus dan tegangan untuk konverter jenis boost berbasis kaskade PID. Tahap pertama yang dimulai dengan model dynamic dan steady state untuk konverter, hingga menentukan fungsi alih sistem dan pengendalian. Kendali kaskade PID dengan metode tuning zigler nichols II. Metode tuning yang dipakai dengan mengimplementasikan nilai gain K pada konverter untuk melihat osilasi sinyal keluaran untuk memperoleh parameter kendali PID (Kp, Ki dan Ti), lalu parameter hasil tuning kemudian dioptimasi kembali untuk mendapatkan peforma kendali yang lebih optimal. Simulasi ditampilkan untuk pembuktian konsep yang telah didesain. Hasil yang didapatkan yaitu kendali tegangan keluaran dapat menyesuaikan dengan tegangan setpoint dengan skenario tegangan sumber yang berubah, kendali arus dapat menjajaki arus referensi dengan skenario beban yang berubah, dan tegangan keluaran dapat menjajaki nilai setpoint yang berubah. Hasil respon kendali tegangan keluaran dan arus yaitu risetime, settlingtime dibawah 0,5s, kurang dari 5%, dan error 5% untuk kendali tegangan.
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