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"ABSTRAKTesis ini membahas implementasi sistem pengendalian kecepatan motor listrik dengan tipe permanent magnet synchronous motor PMSM tanpa menggunakan sensor posisi dan kecepatan sensorless motor control . Algoritma observer dengan tipe Square-Root Unscented Kalman Filter SRUKF yang menggunakan skema injeksi tegangan didesain untuk melakukan estimasi posisi sudut elektrikal dan kecepatan elektrikal rotor dari motor IPMSM pada koordinat alpha-beta. Sistem observer kemudian dipadukan dengan pengendali dengan tipe Field Oriented Control FOC untuk menghasilkan sistem Sensorless Control.Hasil pengembangan kemudian diimplementasikan untuk mengendalikan kecepatan IPMSM, dan hasil estimasi SRUKF kemudian dibandingkan dengan hasil estimasi EKF untuk memperlihatkan superioritas dari SRUKF.

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ABSTRACTThis thesis discusses the implementation of electrical motor control, especially permanent magnet synchronous motor PMSM , without position and speed sensor sensorless motor control . Square Root Unscented Kalman Filter SRUKF algorithm with voltage injection signal is designed to estimate electrical position and electrical speed of IPMSM on alpha beta coordinate. The observer system will be combined with Field Oriented Control FOC to produce Sensorless Control system.The development result is then implemented to control the speed of IPMSM. The results of SRUKF observer also compared with the EKF observer results to illustrate the superiority of SRUKF. "

"Motor sinkron magnet permanen yang digunakan pada tesis ini adalah motor sinkron magnet permanen tiga fasa. Sumber tegangan yang digunakan yaitu leadacid battery dengan menserikan 67 baterai karena tegangan yang dibutuhkan adalah 400 volt dan setiap cell memiliki tegangan sebesar 6 volt. Sistem kendali untuk motor sinkron magnet permanen yang diterapkan pada tesis ini adalah pengendali arus menggunakan PI, dibantu dengan dekopling, kemudian pengendali kecepatan menggunakan IP. Proses selanjutnya setelah mengetahui sistem kendali yang digunakan adalah menurunkan rumus seluruh sistem dan kemudian melakukan tahap liniearisasi agar dapat dibentuk dalam ruang keadaan sehingga dapat mengetahui kestabilan sistem. Kestabilan sistem diketahui dengan merubah SoC (State of Charge) , Torsi beban, dan atau atau kecepatan. Dari pengujian tersebut dihasilkan bahwa torsi beban tidak memengaruhi kestabilan sistem, namun, ketika SoC = 100% nilai salah satu pole adalah -0.001375 dan ketika SoC = 20% pole menjadi -0.002081. Perubahan kecepatan dari 1000 rpm menjadi 500 rpm mengakibatkan salah satu pasang pole kembar −0.02±0.09i menjadi −1.28±2.62 i , dua pasang pole kembar −1.28±2.62 i dan −100.42±418.98i menjadi −0.07±0.17 i dan −100.36±209.61 i.

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The permanent magnet synchronous motor used in this thesis is a three phase permanent magnet synchronous motor. The voltage source used is a lead-acid battery with 67 batteries because the required voltage is 400 volts and each cell has a voltage of 6 volts. The control system for the permanent magnet synchronous motor applied in this thesis is a current controller using PI, assisted by decoupling, then speed control using IP. The next process after knowing the control system used is to derive the formula for the entire system and then perform a linearization stage so that it can be formed in the state space so that it can determine the stability of the system. System stability is known by changing the SoC (State of Charge), load torque, and/or speed. From this test, it is found that the load torque does not affect the stability of the system, but when SoC = 100% one of poles has value -0.001375, when SoC = 20%, the pole has value - 0.002081, and the changing of speed from 1000 rpm to 500 rpm affect one pair of twin poles is −0.02±0.09i to −1.28±2.62 i , two pairs of twin poles are −1.28±2.62 i and −100.42±418.98i to −0.07±0.17 i and −100.36±209.61 i."

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