Works (10)

Updated: July 5th, 2023 15:39

2022 article

Improved EEMF-Based Position Sensorless Control for Non-sinusoidal Back-EMF PMSMs

Kim, H., Lee, K., & Bhattacharya, S. (2022, January 3). JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, Vol. 1.

By: H. Kim n, K. Lee* & S. Bhattacharya n

author keywords: Extended EMF sensorless vector control; Harmonic rotor flux identification; Harmonic voltage injection; Interior permanent magnet synchronous machine; Non-sinusoidal back-EMF
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: January 10, 2022

2021 journal article

Analytical Study of SiC MOSFET Based Inverter Output dv/dt Mitigation and Loss Comparison With a Passive dv/dt Filter for High Frequency Motor Drive Applications

IEEE ACCESS, 9, 15228–15238.

By: H. Kim n, A. Anurag n, S. Acharya* & S. Bhattacharya*

author keywords: Voltage control; Inverters; Power cables; Active filters; Passive filters; Transient analysis; Switches; 3-phase inverter; dv/dt filter; gate resistance; gate driver; high speed machine drives; silicon carbide (SiC); wide bandgap devices (WBG)
TL;DR: In this paper, an analysis based on the impact of gate resistance on the dv/dt across the machine, and the corresponding losses is carried out and an analytical d v/dt filter design strategy is proposed to limit the dV/dt to a particular value. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: January 27, 2021

2021 article

Flux Switching Permanent Magnet Motor with Metal Amorphous Nanocomposite Soft Magnetic Material and Rare Earth Free Permanent Magnets

2021 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), pp. 3866–3872.

By: S. Simizu*, K. Byerly*, K. Schneider*, H. Kim n, M. Nations n, S. Narasimhan n, R. Beddingfield n, S. Bhattachayara n, M. McHenry*

author keywords: power loss; soft magnetic material; flux switching permanent magnet motor
Sources: Web Of Science, NC State University Libraries
Added: July 5, 2022

2021 journal article

Reliable Flux-Based Detection of Induction Motor Rotor Faults From the Fifth Rotor Rotational Frequency Sideband

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 68(9), 7874–7883.

By: S. Lee*, J. Shin*, Y. Park*, H. Kim n & J. Kim*

author keywords: Rotors; Induction motors; Sensors; Reliability; Monitoring; Synchronous motors; Amplitude modulation; Airgap flux; fault diagnosis; induction motor; motor current signature analysis (MCSA); rotor fault; search coil; spectral analysis; stray flux
TL;DR: It is shown that the fifth sideband of the rotor rotational speed frequency can provide detection of rotor faults immune to most of the false MCSA indications, and a new fault indicator in the airgap or stray flux capable of reliable online detection is proposed. (via Semantic Scholar)
Source: Web Of Science
Added: July 12, 2021

2020 journal article

A Rotating Restart Method for Scalar (v/f) Controlled Synchronous Reluctance Machine Drives Using a Single DC-Link Current Sensor

IEEE ACCESS, 8, 106629–106638.

By: K. Lee*, H. Kim n & S. Lukic*

author keywords: Synchronous reluctance motor (SynRM); restart method; rotor position and speed estimation; scalar (V/f) control; single DC-link current sensor
TL;DR: The method proposes to inject three active voltage vectors in the stationary reference frame to induce the phase currents required for estimating the rotor position and speed, and to reduce the distortion of the measured phase currents caused by adopting a single DC-link current sensor. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: July 20, 2020

2020 article

A Sinusoidal Current Control Strategy Based on Harmonic Voltage Injection for Harmonic Loss Reduction of PMSMs With Non-Sinusoidal Back-EMF

Kim, H., Han, Y., Lee, K., & Bhattacharya, S. (2020, November). IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, Vol. 56, pp. 7032–7043.

By: H. Kim n, Y. Han*, K. Lee* & S. Bhattacharya n

author keywords: Harmonic analysis; Rotors; Power harmonic filters; Magnetic flux; Couplings; Saturation magnetization; Stator windings; Harmonic current losses reduction; harmonic rotor flux identification; harmonic voltage injection; nonsinusoidal back-EMF; nonsinusoidal machine current; permanent magnet synchronous machine (PMSM); resonant controller (RC)
TL;DR: The sinusoidal current control strategy based on harmonic voltage injection, which requires knowledge of rotor magnet flux linkage harmonics, is presented and its disadvantages in terms of speed-dependent gain and stability, in comparison to the proposed scheme are highlighted. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: January 4, 2021

2020 article

Improved Rotor Position Estimation in Extended Back-EMF Based Position Sensorless Control for IPMSMs with Non-Sinusoidal Back-EMF

2020 IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING.

By: H. Kim n & S. Bhattacharya n

author keywords: Permanent magnet synchronous machine; harmonic current losses; harmonic voltage injection; non-sinusoidal back-EMF; non-sinusoidal machine current; vector control; extended back-EMF; sensorless control
TL;DR: A harmonic voltage injection based current control scheme is presented that results in sinusoidal machine current and improves the performance of extended back-EMF based position sensorless control and mitigates the harmonic copper losses. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 30, 2021

2019 journal article

Stray Flux Monitoring for Reliable Detection of Rotor Faults Under the Influence of Rotor Axial Air Ducts

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 66(10), 7561–7570.

By: Y. Park*, C. Yang*, J. Kim*, H. Kim n, S. Lee*, K. Gyftakis*, P. Panagiotou*, S. Kia*, G. Capolino*

author keywords: Electrical fault detection; false alarms; fault diagnosis; flux signature analysis; induction motor; motor current signature analysis (MCSA); rotor fault; spectral analysis; stray flux
TL;DR: It is shown for the first time in this work that the spectrum analysis of the radial stray flux can provide reliable detection of rotor faults immune to the influence of rotor axial air ducts, which is the most common cause of false rotor fault alarms. (via Semantic Scholar)
Source: Web Of Science
Added: April 20, 2020

2016 journal article

Identification of False Rotor Fault Indications Produced by Online MCSA for Medium-Voltage Induction Machines

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 52(1), 729–739.

By: S. Lee*, D. Hyun*, T. Kang*, C. Yang*, S. Shin, H. Kim n, S. Park, T. Kong*, H. Kim*

author keywords: Fault diagnosis; induction motor; monitoring; rotor testing; spectral analysis
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Reliable Detection of Rotor Faults Under the Influence of Low-Frequency Load Torque Oscillations for Applications With Speed Reduction Couplings

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 52(2), 1460–1468.

By: H. Kim n, S. Lee*, S. Park, S. Kia* & G. Capolino*

author keywords: Belt pulleys; couplings; electrical fault detection; fault diagnosis; gears; harmonic analysis; induction motors; rotors; spectral analysis; wavelet transforms
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

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