Virtual Space Vector-Based Direct Torque Control Schemes for Induction Motor Drives
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DOI: 10.1109/tia.2020.2978447
Abstract: This article presents new direct torque control (DTC) schemes for induction motor (IM) drives based on the concept of virtual voltage space vectors. In the first scheme presented in this article six virtual voltage space… read more here.
Keywords: space vectors; virtual voltage; control; voltage space ... See more keywords
Robust Stability Improvement for Speed Sensorless Induction Motor Drive at Low Speed Range by Virtual Voltage Injection
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DOI: 10.1109/tie.2019.2910039
Abstract: The unstable problem of speed sensorless induction motor drives (SSIMDs) at low synchronous speed range has not been solved yet. In this paper, the reason of this unstable problem is concluded as two key points:… read more here.
Keywords: speed; virtual voltage; speed range; stability ... See more keywords
Virtual Voltage Control of VSG for Overcurrent Suppression Under Symmetrical and Asymmetrical Voltage Dips
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DOI: 10.1109/tie.2021.3125654
Abstract: This article proposes a novel and easily implementable overcurrent suppression control for voltage-controlled virtual synchronous generators (VSGs). The VSG is vulnerable to grid voltage disturbances, such as voltage dip/recovery, because it consists of voltage source… read more here.
Keywords: overcurrent suppression; control; voltage; asymmetrical voltage ... See more keywords