<p class="Abstract"><span lang="EN-US">A novel online induction motor (IM) rotor time constant estimator based on a perturbation-based extremum seeking control (ESC) and model reference adaptive system (MRAS) is proposed. Since implementations of fieldoriented (FOC) requires accurate values IM parameters, such as constant, so robust on-line estimations parameters are crucial for any...

Motor BLDC banyak digunakan pada bidang otomotif dan industri. Karena memiliki efisiensi tinggi, torsi besar, perawatan mudah. Beberapa sistem penggerak yang menggunakan motor terkadang membutuhkan kecepatan konstan. Akan tetapi ketika diberi beban lebih maka akan menurun. Oleh karena itu, dibutuhkan suatu pengaturan agar menjadi konstan walaupun beban. Pada paper ini mengusulkan metode FOC den...

This paper presents the field-oriented control (FOC) of a five-phase induction motor (FPIM) fed from three-to-five phase direct matrix converter (DMC). The article focuses on modulation and DMC, which discusses minimizing problems associated with switching vector selection, sector identification, sequence dwell-time calculations. DMC is controlled space pulse width (SVPWM) technique, eliminatin...

Abstract Aims This study looks whether the response of soil management (liming and nitrogen fertilization) on incidence Fusarium wilt (Foc Race 1) in Gros Michel banana ( Musa AAA) varies with different properties. Methods The effect inoculation Foc 1 was studied a factorial greenhouse trial samples from eight representative types Costa Rican region, two pH levels; three levels N-fertilization....

An improved fault-tolerant control (FTC) method using mathematical functions is applied to the induction motor drive (IMD) against current sensors and speed encoder failures, which occur when sensor disconnected or completely damaged. The IMD with two an controlled based on field-oriented (FOC) technique in regular operation. In this paper, FTC unit implemented FOC controller detect solve fault...

This work discusses the simulation and experimental demonstration of a genetic algorithm hybrid fuzzy-fuzzy controller (GA-HFFC) system to achieve speed control variable-speed induction motor (IM) drive based on space vector pulse width modulation (SVPWM) technique by means an eZdspF28335 digital signal processing (DSP) experiment board. Two features field-oriented (FOC) were used design GA-HFF...

In this paper we propose a Fractional Order Controller for an under-actuated system (POAC). This system has two degrees-of-freedom and one control input. The model of the system is derived using Euler Lagrange method and the stabilization is achieved with constraints using Fractional Order Controller. To validate the control law, simulation are performed and compared with Integer Order Controll...

Phase retrieval on well-exposed PC images shows that shrinkage of the OTA continues at a rate of about 0:90 0:15 m=month, close to that determined by FOC measurements. A movement of 5:0 m of the secondary mirror away from the primary is recommended for mid-January, to compensate for the shrinkage occurred since the last mirror movement on June 29, 1994. A program of focus monitoring based on ph...

This work represents a new nonlinear control for the asynchronous motor (AM) drive. The designed is based on combination between backstepping (BC) scheme and third-order sliding mod (TOSMC). In this proposed control, torque flux are controlled. Also, torque, current, ripples minimized by BC-TOSMC strategy. strategy more robust compared to field-oriented (FOC). of AM drive has been simulated in ...