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Gallium nitride (GaN) switches have superior switching performance when compared to the traditional Si technology. Therefore, GaN switches are an appealing option for power converters and electrical drives. In this paper, considerations for a high-speed electrical drive with inverter switching frequency of 1 MHz are presented, along with simulation results of the motor control of the drive.
Recently, the demand of the position sensorless control is increasing in motor drive. At low speed range, the saliency-based methods are proposed. In this paper, using the modified symmetrical carrier PWM with switching frequencies up to 16kHz, we achieve to reduce the audible noise that human can be heard.
The presented DTC-3V-3L method was designed to ensure the high performance of PMSM drive. Using the predictive approach the algorithm minimizes torque ripples, ensures constant switching frequency and DC link voltage balancing. Moreover, it also provides the fastest dynamic torque response, similar to the fastest non-linear methods.
A Multilevel Cascaded H-Bridge (MLCHB) converter was designed and implemented for the application of an Ironless Axial Flux Permanent Magnet (IAFPM) motor drive. This paper provides an analysis of the IAFPM motor and the performance of the converter's ripple current regulation capabilities. Lastly a comparison between the simulation and the experimental results is presented.
In this paper a control scheme for a PMSM drive that keeps the torque ripple within predefined limits is presented. The electromagnetic torque is assumed to be proportional to i1q, which is measured by using Sigma-Delta Analog to Digital Converters (ΣΔ-ADCs) with a very high sampling rate, so the actual ripple of the torque can be obtained and controlled in an enhanced way. The measurement results...
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