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The current paper shows the modeling, controller design and simulation of Permanent Magnet Synchronous Motor (PMSM) drive. As the paper deals with use of neural network methods to implement control of PMSM hence two control methods are used-For the inner loop current control the Hysteresis current controller is used and for the purpose of outer loop speed control the PI controller is used. The conventional...
Due to its simple structure, compactness, efficiency and high torque density and ease of maintenance, the permanent magnet synchronous motor (PMSM) is particularly used in high-performance drive systems. This paper presents PI control of PMSM fed by a direct AC/AC matrix converter. We aim to obtain sinusoidal waveforms of currents in the output of the considered converter with the best static and...
This paper studies vector control of induction machine (IM) fed by PWM inverter. Indirect field oriented control is one of the most effective vector control due to the simplicity of design and implementation. The application of this strategy is achieved by using of proportional-integral (PI) controllers. The parameters of these controllers are calculated directly from the machine settings using conventional...
This paper presents the speed control scheme of VSI fed indirect vector controlled induction motor (IM) drive. SVPWM technique is used to operate the proposed IM drive. The dynamic performance of drive system is compared with Neural Controller and DSP implemented PI controller in speed feedback loop. Decoupling of the stator current into torque and flux producing (d-q) current components model of...
This paper presents the speed control scheme of indirect vector controlled induction motor (EVI) drive. Voltage source inverter type space vector pulse width modulation (SVPWM) is used for PWM controlling scheme. An intelligent based on Fuzzy PI controller is developed for controlling the torque component Iq current of an EVI. The complete vector control scheme of the IM drive incorporating the FLC...
In the present work a novel strategy for optimum design of flux and torque controller for carrier space vector pulse width modulation based direct torque control (CSVPWM DTC) of induction motor (IM) drive has been implemented. Two positive and one negative torque slope levels per half the switching period has been predicted for CSVPWM DTC IM drive based on which a new optimal control strategy is proposed...
This Paper presents a Particle Swarm Optimization (PSO) method to determine the optimal proportional-integral (PI) or proportional-integral derivative (PID) controller parameters, for speed control of a Field Oriented Control (FOC) induction motor. The FOC induction motor has been modeled in MATLAB (Simulink) and the PSO algorithm has been programmed and implemented in MATLAB. Comparing with traditional...
Field Oriented Control (FOC) Permanent Magnet Synchronous Motor (PMSM) is a commutator less servo drive which provides high controllability, greater efficiency, superior torque to inertia ratio and high power density. However, the performance of FOC-PMSM depends on the driver circuits, which requires expensive computing elements. Besides, an intelligent current regulator is desired for a highly precise...
This paper presents the speed control scheme of indirect vector controlled induction motor (IM) drive. PWM controlling scheme is based on Voltage source inverter type space vector pulse width modulation (SVPWM) and the Conventional-PI controller or Fuzzy-PI controller is employed in closed loop speed control. Decoupling of the stator current into torque and flux producing (d-q) current components...
This paper presents a novel fast speed response control strategy for the poly-phase induction motor drive system based on flux angle. The control scheme is derived in rotor field coordinates and employs the estimation of the rotor flux and its position. An adaptive notch filter is proposed to eliminate the dc component of the integration of signals used for the rotor flux estimation. To improve the...
This paper presents a closed loop vector control for an interior permanent magnet synchronous motor (IPMSM) drive incorporating a neuro-fuzzy controller (NFC) and a fuzzy logic controller (FLC). The NFC serves as the speed controller of the drive. It is designed so as to generate the appropriate command q-axis current and ensure dynamic speed control. The back-propagation technique is used for the...
This paper presents a novel Adaptive Neural Fuzzy Inference System (ANFIS) based Matrix Converter for speed control of Induction Motor. The proposed ANFIS consists of fuzzy logic controller algorithm with a five layer Artificial Neural Network. The ANFIS system tunes the fuzzy system with hybrid learning algorithm and hence generates the reference voltage. The reference voltage is used to generate...
The dynamics of the induction motor drive can be made independent of the position as well as speed control by using the field oriented control strategies. There are various techniques available under this category. One of such strategies is Indirect Field-Oriented Control method for the Induction motor drive. The speed control is observed in both, open-loop and closed-loop control applications. The...
In the following paper, we propose a new input-output sliding mode linearization control for induction motor combined with field oriented control (FOC). We develop two loops to control the speed and rotor flux modulus. The first one, inner loop, allows to linearize the system by a choose of closed loop poles to achieve a good linearization. The choice of a particular sliding surface permits to create...
Control levers for command setting are widely used, e. g. as thrust control in marine or aviation applications. Actually these levers are equipped with a mechanical brake to avoid movements of the lever in case of vibrations. Special control points are indicated to the user by mechanical detents. The basic idea of an active lever is to create a force feedback to the user which depends on the current...
The purpose of this paper is to describe a new method for modulated hysteresis direct torque control algorithm for induction motor (IM) to minimize torque ripple and to obtain a constant switching frequency. The design methodology is based on space vector modulation of electrical machines with digital vector control. MATLAB simulations supported with experimental study under C++ are used. -The simulation...
The principle of vector control of electrical drives is based on the control of both the magnitude and the phase of each phase current and voltage. Matlab/Simulink has been performed for assessment of operating features of the proposed scheme. PI speed controller are designed in this paper, Test response of the developed variable speed drive along with simulated response are given and discussed in...
This paper presents the application of a sensorless direct torque control (DTC) for an induction motor, using an improved H-Bridge multilevel inverter with 27-Levels. The inverter topology reduces the power sources from nine to only four active sources and three ultracapacitors. The power sources are unidirectional and non-redundant; scaled in power of three to optimize the number of voltage levels...
The problem of efficiency optimization in vector-controlled permanent magnet brushless AC motor drive is investigated. A machine model which accounts for the effect of core losses is included in the development of a loss model controller that dynamically determine the optimal reference currents and voltages required for minimum electrical loss (copper losses and core losses). The effectiveness of...
The work presented in this paper addresses the unwanted windup phenomenon reviewing and comparing different PI anti-windup strategies employed in speed control of electric drives. The tuning process of PI controllers is usually carried out considering the system as linear and therefore disregarding its physical limits such as maximum current and voltage. To safeguard the system's integrity, the PI...
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