Swing-up dan Stabilisasi pada Sistem Pendulum Kereta menggunakan Metode Fuzzy dan Linear Quadratic Regulator

Abstract

Sistem Pendulum Kereta merupakan sistem nonlinear dan tidak stabil yang sering digunakan untuk menguji metode-metode kontrol. Makalah ini membahas desain sistem kontrol swing-up menggunakan Fuzzy Swing-up Controller (FSC) model Mamdani dimana variabel yang dikontrol adalah sudut batang pendulum dan kecepatan sudut batang pendulum. Selain itu, juga memperhitungkan batasan panjang rel dan sinyal kontrol. Untuk stabilisasi batang pendulum pada posisi 0 radian diselesaikan menggunakan Linear Quadratic Regulator (LQR), disusun dari model nonlinear Sistem Pendulum Kereta yang direpresentasikan dalam model fuzzy Takagi-Sugeno (T-S) untuk beberapa titik kerja. Skema kontrol keseluruhan disusun dengan konsep Parallel Distributed Compensation (PDC) yang merupakan kontroler state-feedback yang dinamis. Hasil simulasi dan implementasi menunjukkan bahwa Sistem Pendulum Kereta dapat melakukan swing-up dan mempertahankan batang pendulum pada posisi terbalik.

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