Rukmi Dutta
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View article: Extended c-differential distinguishers of full 9 and reduced-round Kuznyechik cipher
Extended c-differential distinguishers of full 9 and reduced-round Kuznyechik cipher Open
This paper introduces {\em truncated inner $c$-differential cryptanalysis}, a novel technique that for the first time enables the practical application of $c$-differential uniformity to block ciphers. While Ellingsen et al. (IEEE Trans. In…
View article: Application of Deep Learning in Parameter Estimation of Permanent Magnet Synchronous Machines
Application of Deep Learning in Parameter Estimation of Permanent Magnet Synchronous Machines Open
This paper presents a novel method for real-time identification of four parameters of the permanent magnet synchronous machines (PMSM) namely stator resistance, d-axis inductance, q-axis inductance and the rotor flux linkage. The proposed …
View article: Maximising energy efficiency with electric motors
Maximising energy efficiency with electric motors Open
Maximising energy efficiency with electric motors Rukmi Dutta from the University of New South Wales discusses the mechanisms and efficiency potential of electric motor systems, looking at how electric motors work, efficiency and losses an…
View article: Open-Winding Permanent Magnet Synchronous Generator for Renewable Energy—A Review
Open-Winding Permanent Magnet Synchronous Generator for Renewable Energy—A Review Open
The open-winding permanent magnet synchronous machines (OW-PMSMs) have recently been gaining more attention because of their fault-tolerant capability and power quality comparable to a 3-level converter-driven system. This paper reviews th…
View article: Development and Optimization of a Mechanically Robust Novel Rotor Topology for Very-High-Speed IPMSMs
Development and Optimization of a Mechanically Robust Novel Rotor Topology for Very-High-Speed IPMSMs Open
Due to the trade-off between rotor mechanical strength and magnetic leakage, the high-speed capability of interior permanent magnet machines (IPMSM) is severely limited. This paper proposes a novel rotor topology capable of delivering 5 kW…
View article: Reduced-Sensors-Based Predictive Controller for LC Filtered Four-Leg Inverters
Reduced-Sensors-Based Predictive Controller for LC Filtered Four-Leg Inverters Open
The high number of sensors, ten in total, required by the traditional finite control set model predictive control (FCS-MPC) strategy of a four-leg inverter with LC output filter increases the complexity and cost of the system and limits th…
View article: A Novel Rotor Topology for High-Performance Fractional Slot Concentrated Winding Interior Permanent Magnet Machine
A Novel Rotor Topology for High-Performance Fractional Slot Concentrated Winding Interior Permanent Magnet Machine Open
This article presents a finite-element-based, multiobjective design optimization study of the fractional-slot, concentrated wound, permanent magnet synchronous machine (FSCW PMSM). Design objectives included maximization of efficiency, min…
View article: Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine
Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine Open
This paper investigates the theoretical reasons behind the low torque ripple of a fractional-slot concentrated-winding (FSCW) spoke-type interior permanent-magnet (IPM) machine obtained via a genetic algorithm-based optimization. To better…
View article: Analytical Calculation of Maximum Mechanical Stress on the Rotor of Interior Permanent-Magnet Synchronous Machines
Analytical Calculation of Maximum Mechanical Stress on the Rotor of Interior Permanent-Magnet Synchronous Machines Open
This article investigates analytical methods for calculating mechanical stress on the rotor of Interior Permanent-Magnet Synchronous Machines (IPMSMs). First, two existing analytical methods for calculating the stress on rotor iron bridges…
View article: Analysis of Low-Speed IPMMs With Distributed and Fractional Slot Concentrated Windings for Wind Energy Applications
Analysis of Low-Speed IPMMs With Distributed and Fractional Slot Concentrated Windings for Wind Energy Applications Open
This paper introduces an alternative pathway to designing an efficient interior permanent magnet machine (IPMM) for directdrive (D-D) wind energy applications. It analyzes the design optimization methodology in great detail, employing mult…
View article: Detailed analytical modelling of fractional-slot concentrated-wound interior permanent magnet machines for prediction of torque ripple
Detailed analytical modelling of fractional-slot concentrated-wound interior permanent magnet machines for prediction of torque ripple Open
The standard dq model of interior permanent magnet machines is based on the assumption of sinusoidal machine parameters. This assumption is flawed especially when a fractional-slot concentrated-wound stator is utilized. In order to address…
View article: An extended dq model for concentrated-wound interior permanent magnet machines considering non-ideal machine parameters
An extended dq model for concentrated-wound interior permanent magnet machines considering non-ideal machine parameters Open
© 2016, Institution of Engineering and Technology. All rights reserved.In the conventional dq model of permanent magnet machines, machine parameters are assumed sinusoidal, leading to a smooth calculated output torque. This is justifiable …
View article: Operation along the maximum torque per voltage trajectory in a direct torque and flux controlled interior permanent magnet synchronous motor
Operation along the maximum torque per voltage trajectory in a direct torque and flux controlled interior permanent magnet synchronous motor Open
© 2016, Institution of Engineering and Technology. All rights reserved. The direct torque and flux control (DTFC) scheme is well known for its simplicity and less parameter dependency compared to the conventional current vector control sch…
View article: COGGING TORQUE AND TORQUE RIPPLE IN A DIRECT-DRIVE INTERIOR PERMANENT MAGNET GENERATOR
COGGING TORQUE AND TORQUE RIPPLE IN A DIRECT-DRIVE INTERIOR PERMANENT MAGNET GENERATOR Open
This paper investigates the cogging torque and torque ripple in high pole number interior permanent magnet generators, designed for direct-drive applications. Two interior permanent magnet rotor topologies - flat-shaped and V-shaped were c…
View article: Performance of a Sensorless Controlled Concentrated-Wound Interior Permanent-Magnet Synchronous Machine at Low and Zero Speed
Performance of a Sensorless Controlled Concentrated-Wound Interior Permanent-Magnet Synchronous Machine at Low and Zero Speed Open
© 1982-2012 IEEE. This paper concerns the sensorless direct torque and flux control (DTFC) of a 14-pole/18-slot, fractional-slot concentrated winding interior permanent-magnet synchronous machine (IPMSM). The dynamic performance of the pro…