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Dtc - DOAJ

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Last Updated: 07 January 2023

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Optimization and control of photovoltaic water pumping system using kalman filter based MPPT and multilevel inverter fed DTC-IM

This paper aims to develop a three-phase induction motor with high productivity, low cost, and no chemical energy storage. Two primary controllers are required to implement the PVWPS's new regulation. Using a robust MPPT control scheme based on the Kalman filter algorithm, the first controller is used to control the system to its maximum. Using a three-level inverter with a neutral point clamped structure, it is suggested to monitor the IM with the centrifugal pump. PVWPS with KF-MPPT and PDTC provide a better result in terms of reference tracking, response time, torque, and flux ripple reduction, current quality, and water pumped, according to the simulated findings.

Source link: https://doi.org/10.1016/j.rineng.2022.100829


Simulation and Optimization of Multi-domain Systems using VHDL-AMS Application to the DTC Control

Many research has been conducted in recent years to find out new induction motor control concepts that have the advantages of precise and fast torque control as well as reduced field oriented algorithms' complexity. The Direct Torque Control system is the most common control technology used to meet these goals. The selection of power electronics systems is based on accurate knowledge of the designers. In this paper, we explore how a high level language can be used to model a system spanning many domains such as digital and analogue electronics, power electronics, electrical motor, control, and others. Taking into account the intended level of results, each domain must be characterized at a high degree of abstraction, according to the intended level of results. In this paper, we'll discuss how this technique can be used to an asynchronous motor's DTC Control in order to optimize the control algorithm and the embedded hardware.

Source link: https://doaj.org/article/add43d5655cd463693eb7dd5d9698eee


Analysis of Hysteresis Band Variations in DTC on the Performance of IM Drives

Compared to DC motors, Direct Torque Control of AC motors is a popular way to achieve torque control behavior. One of the first difficulties involved in the procedure was the choice of hysteresis band amplitude, which determines ripple frequencies and amplitude error of control variables. This paper provides a detailed review of hysteresis band variations in DTC for the dynamic results of induction motor drives. Using the DSP-DS1102 build and tested, an experimental system of DTC for IM drives is built and tested.

Source link: https://doaj.org/article/0d92a76c4d9e4ea09ab0625928fed653


A DTC Algorithm for Induction Motor Drives with 3-level Diode-Clamped Inverters

This paper introduces a new Direct Torque Control scheme for induction motor electrical drives supplied by 3-level diode clamped inverters, which is described in this paper. The results obtained with numerical simulations show that with the use of a 3-level inverter in such a control scheme, you can achieve the same dynamical results as those obtained with a 2-level inverter, resulting in lower torque and flux ripples, as well as lower harmonic content in the stator voltages and currents.

Source link: https://doaj.org/article/433b859d7eac4c38834f5c902e5bef74


Improved DTC strategy with fuzzy logic controller for induction motor driven electric vehicle

Zero-emission transportation is expected to be installed in the near future in an attempt to minimize the major pollutants caused by road transportation. Due to the fast torque response and simplicity, the induction motor-fed direct torque controller is widely used in EV applications. To achieve fuzzy DTC control, the fuzzy-based DTC replaces the hysteresis comparators and the switching table with fuzzy logic blocks, which increases the system's efficiency. This paper discusses updated fuzzy logic control scheme for electric vehicle applications. According to the study, torque ripple, flux ripple, and speed ripples have risen by 69%, 10%, and 85%, respectively. Due to the decrease in ripples, there has also been a rise in the stator's THD by 17%. 8% and 12% respectively in transient, an average increase in integral square error for torque and speed is 8. 8 percent and 12% respectively.

Source link: https://doi.org/10.3934/electreng.2022018


Parallel Loop Control for Torque and Angular Velocity of BLDC Motors with DTC Commutation

This paper is about the creation of a parallel control loop of the angular velocity and torque for Brushless Direct Current motors. In addition, the parallel loop's steady state response is achieved in a shorter period. The control signal was applied to a simulated driver using a switching device known as Direct Torque Control, which is available in 2 and 3 phases. The parallel control loop outperforms cascaded control of BLDC motors, according to these preliminary results.

Source link: https://doi.org/10.3390/electronics9020279


Performance Improvement for PMSM DTC System through Composite Active Vectors Modulation

The precondition of the correct compensation of torque measurement and flux linkage errors is that the mistakes can be fully compensated throughout the entire control cycle. The compensation effects of torque error and flux linkage error in various operating conditions of the PMSM are determined firstly, and then, the PMSM's operating conditions are divided into three categories according to the error compensation implications. The effect factors are used to represent the error compensation provided by the applied active vectors in order to bring the novel composite active vector modulation scheme to a smoothly.

Source link: https://doi.org/10.3390/electronics7100263


Minimization of Torque Ripple in DTC of Induction Motor Using Fuzzy Mode Duty Cycle Controller

Direct Torque Control appears to be the most popular control method for induction motor drives, being independent of machine rotor parameters and requiring no speed or position sensors. However, the presence of hysterics controllers for flux and torque could influence torque and current ripple and variable switching frequency operation for the voltage source inverter. This paper is designed to investigate DTC principles and the challenges surrounding its implementation, as well as the torque transfer and the potential changes to minimize this torque ripple by using a new fuzzy-based duty cycle controller.

Source link: https://doaj.org/article/744940dc158d47bea51c3b854748eb3b


Five-Level Hysteresis DTC of Open-End Winding Permanent Magnet Synchronous Motors With Zero-Sequence Currents Suppression and Torque Ripple Reduction

With common DC bus open-end winding permanent magnet synchronous motors with zero sequence currents and large torque ripple, contributing to increased system loss and poor operating characteristics, and reduced operating characteristics. The ZSC can effectively be minimized in theory by determining the composition of zero sequence voltage and using the double vector technique to suppress it, without effecting the system's performance. FLTH can not only use multiple voltage vectors, but also reduce torque ripple. The conventional DTC and the FLTH DTC are compared using simulation and experiment, and the results reveal the validity of the proposed plan's conclusions.

Source link: https://doi.org/10.1109/ACCESS.2022.3223126


Sensorless based SVPWM-DTC of AFPMSM for electric vehicles

Then AFPMSM is more suitable for driving the EV than the radial flux motor. Sensorless research is becoming more significant in this situation, as the axial motor can be embedded inside the vehicle tire due to its condensed size and shape similar to the tires. When determining speed using a sensorless estimator, sensor error is minimized, and the AFPMS motor can be mounted inside the tire. The tested control scheme is used in 100 times less than the actual driving cyclesu2019 time to measure the sensorless estimator's coherence.

Source link: https://doi.org/10.1038/s41598-022-12825-x

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions