Journal ArticleDOI
Sensor-less vector control of induction motor at low-speed operation using modular multilevel converter
Reads0
Chats0
TLDR
A novel speed observer for MMC-based VSD suitable for low-speed operation is proposed and a discrete model where the rotor parameters do not change during a short sampling time is considered.Abstract:
Modular Multilevel Converter (MMC) is widely known as one of the most promising topologies for high power medium voltage application. However, MMC is still limited when it comes to Variable...read more
Citations
More filters
Journal ArticleDOI
Sensorless vector control scheme for an induction motor fed by MMC
TL;DR: In this article , a high-performance sensorless vector control scheme inspired from the Model Reference Adaptive System (MRAS) approach is developed for an MMC-fed induction motor.
Journal ArticleDOI
A modified CPS-PWM for capacitor voltage reduction of MMC based variable speed drive
TL;DR: In this paper , the carrier phase shift-pulse width modulation (CPS-PWM) was modified to reduce the average voltage of the MMC submodules and thus accommodate more ripples without exceeding the maximum voltage.
Journal ArticleDOI
An improved method to sub‐module voltage balancing in modular multilevel converters with two voltage sensors
TL;DR: In this paper , the authors proposed a method in which merely two voltage sensors are used to balance the converter's capacitor voltages, and voltages are estimated using the exponentially weighted recursive least square (RLS) method in each sampling time.
References
More filters
Proceedings ArticleDOI
New transformerless, scalable Modular Multilevel Converters for HVDC-transmission
TL;DR: In this article, a novel concept of high voltage direct current converter (HVDC) employing the modular multilevel converter (M2C) is presented employing the M2C.
Journal ArticleDOI
Sensorless Control of Induction Machines—With or Without Signal Injection?
TL;DR: Signal flow graphs of complex space vector quantities are used to provide an insightful description of the systems used in sensorless control of induction motors.
Journal ArticleDOI
A Medium-Voltage Motor Drive With a Modular Multilevel PWM Inverter
TL;DR: In this article, the authors describe the control and operating performance of a modular multilevel PWM inverter for a transformerless medium-voltage motor drive, where the inverter is prominent in the modular arm structure consisting of a cascaded stack of multiple bidirectional choppercells.
Journal ArticleDOI
Controlled AC Electrical Drives
John W. Finch,Damian Giaouris +1 more
TL;DR: Control techniques which are being applied to make AC drives a rapidly growing area are discussed, with concentration on recent trends suitable for practical applications in the industry with good dynamic behavior.
Journal ArticleDOI
Sensorless Drives in Industrial Applications
TL;DR: Different aspects regarding the state of the art of sensorless drives in industrial applications and the reasons that determine the acceptance or refusal of the different solutions on the side of manufacturers of motor drives are explained and discussed.
Related Papers (5)
Voltage balancing of modular multilevel converter for an induction motor drive
J Ananthu,V Srikanth +1 more