Pengendalian 3-Axis Reaction Wheel Satelit LAPAN-TUBSAT A1 Menggunakan Kendali PID Teroptimasi Algoritma Genetika

Authors

  • Yulio Ramadhan Program Studi Teknik Fisika, Universitas Nasional
  • Hari Hadi Santoso Program Studi Teknik Fisika, Universitas Nasional
  • Erna Kusuma Wati Program Studi Teknik Fisika, Universitas Nasional

DOI:

https://doi.org/10.47313/jig.v21i1.581

Keywords:

Algoritma genetika, ADCS, LAPAN-TUBSAT A1

Abstract

Reaction wheel merupakan aktuator aktif yang digunakan pada subsistem Attitude Determination and Control System (ADCS) Satelit, pada penelitian ini pengendalian reaction wheel disimulasikan dengan menggunakan kendali PID dan penalaan menggunakan Algoritma Genetika dengan populasi awal sebanyak 100 populan, laju crossover 0.8, konstanta mutasi 0.01, kriteria penghenti adalah 50 generasi dengan fitness function berdasarkan indeks performansi PID yaitu ITAE. Pengendalian Reaction Wheel pada lingkar tertutupnya dengan kendali PID yang teroptimasi Algoritma Genetika memiliki karakteristik respon transien yaitu rise time 11 detik, setlling time 91 detik, overshoot 33.2% dengan indeks performansi ITAE sebesar 481.9479. Dengan menggunakan simulator Smart Nanosatellite Attitude Propagator (SNAP) berbasis MATLAB, dilakukan simulasi dinamis menggunakan model 3-axis reaction wheel sebagai aktuatornya. Satelit LAPAN –TUBSAT A1 digunakan sebagai objek pengendalian, dilakukan simulasi dengan menskenariokan bahwa satelit dalam keadaan tumble memiliki inisial kecepatan sudut [0.5 0.5 0.5] °/detik kemudian dilakukan detumbling yaitu membuat kecepatan sudut satelit menjadi [0 0 0]°/detik. Sumbu roll dan yaw memiliki error yang cukup besar yaitu direntang 1 rad/s dan -1 rad/s sedangkan sumbu pitch memiliki error kecil direntang 1.5x10−3 rad/s dan −1.5x10−3 rad/s.

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Published

2019-04-09

Issue

Vol. 21 No. 1 (2018): Volume 21 Edisi 1 Tahun 2018

Section

Articles

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