Rancang Bangun Real-Time EStimator Kecepatan Berbasis Disturbance Observer Pada Motor Induksi

Dharmawan, Muchamad Arief (2021) Rancang Bangun Real-Time EStimator Kecepatan Berbasis Disturbance Observer Pada Motor Induksi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Motor induksi merupakan motor yang sering digunakan sebagai tenaga penggerak didunia industri. Informasi kecepatan dibutuhkan untuk dapat mengendalikan kecepatan motor, namun penggunaan sensor kecepatan pada motor induksi dinilai kurang efektif karena harganya yang mahal dan reliability yang semakin berkurang. Seiring berjalannya waktu dikembangkan sebuah metode speed sensorless motor induksi yang digunakan untuk menggantikan sensor kecepatan dan salah satunya adalah dengan disturbance observer. Pada penelitian ini dirancang rancang bangun real time estimator kecepatan berbasis disturbance observer sebagai pengganti sensor kecepatan dengan menggunakan motor induksi 3 fasa dengan ditambahkan sensor kecepatan untuk mengukur kecepatan motor dan sebagai validasi hasil estimasi, Arduino untuk menerima data pengukuran sensor kecepatan, Data Acquisition (DAQ) National Instrument untuk menerima data pengukuran sensor arus dan Toshiba Inverter VF-nC3 sebagai kontroller tegangan input motor induksi, serta software Simulink MATLAB.Pada modul pengukuran didapat error pengukuran sebesar 3.4%. Sistem speed sensorless yang telah dirancang bekerja pada kecepatan 250, 300, 350, 400 dan 450 RPM. Nilai RMSE estimasi terbesar adalah 1,509% yang terjadi pada kecepatan 400 RPM. Sedangkan nilai RMSE estimasi terkecil adalah 0,979% yang terjadi pada kecepatan 350 RPM. Pada saat tracking kecepatan dari 300 ke 350 RPM terjadi overshoot sebesar 35% selama 0,1 detik. Hal ini karena informasi tegangan yang diberikan masih belum sesuai. Sehingga estimator menerima informasi yang tidak cocok dan menyebabkan hasil estimasinya tidak sesuai.
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Induction motor is a motor that is often used as a driving force in the industrial world. Speed information is needed to be able to control the speed of the motor, but the use of speed sensors on induction motors is considered less effective because of the high price and diminishing reliability. Over time, a speed sensorless induction motor method was developed which is used to replace the speed sensor and one of them is the disturbance observer. In this study, a real time speed estimator based on disturbance observer was designed as a substitute for a speed sensor using a 3-phase induction motor with a speed sensor added to measure the motor speed and as a validation of the estimation results, Arduino to receive speed sensor measurement data, Data Acquisition (DAQ) National Instrument for receiving current sensor measurement data and Toshiba Inverter VF-nC3 as an induction motor input voltage controller, as well as Simulink MATLAB software. The measurement module obtained a measurement error of 3,4%. The sensorless speed system that has been designed works at speeds of 250, 300, 350, 400 and 450 RPM. The largest estimated RMSE value is 1,509%, which occurs at a speed of 400 RPM. While the smallest estimated RMSE, value is 0,979%, which occurs at a speed of 350 RPM. At the time of tracking, speed from 300 to 350 RPM there was an overshoot of 35% for 0,1 seconds. This is because the voltage information provided is still not appropriate. So that the estimator receives information that does not match and causes the estimation results to be inappropriate.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Motor induksi, Speed sensorless, Disturbance Observer Induction motor, Speed sensorless, Disturbance Observer
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2785 Electric motors, Induction.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Muchamad Arief Dharmawan
Date Deposited:	07 Sep 2021 06:55
Last Modified:	07 Sep 2021 06:55
URI:	http://repository.its.ac.id/id/eprint/91240

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