Kibok Lee

Works (13)

Updated: July 5th, 2023 15:42

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
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7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: January 10, 2022

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)
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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)
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7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: January 4, 2021

2019 article

Restart Strategy for Scalar (V/f) Controlled Synchronous Reluctance Machine Driving a High-Inertia Load

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, Vol. 55, pp. 3834–3841.

By: K. Lee*, S. Ahmed * & S. Lukic n 

author keywords: Flying restart; position and speed estimation; scalar (V/f) control; synchronous reluctance motor (SynRM)
TL;DR: This paper proposes an approach for implementing a restart algorithm for synchronous reluctance machines (SynRMs) that use a simple identification algorithm to determine the speed and position of the machine so that the appropriate voltage vector can be applied, thus minimizing the inrush current during the restart. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: July 29, 2019

2017 article

Universal Restart Strategy for Scalar (V/f) Controlled Induction Machines

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, Vol. 53, pp. 5489–5495.

By: K. Lee n, S. Ahmed * & S. Lukic n 

author keywords: Induction motor; universal flying restart method; V/f scalar control
TL;DR: The proposed method performs a frequency search to estimate the rotor speed, and applies the correct frequency and voltage to minimize the inrush current during the restart, making the approach ideal for scalar-controlled motor drives. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2016 conference paper

A universal restart strategy for induction machines

2016 IEEE Energy Conversion Congress and Exposition (ECCE), 1–6.

By: K. Lee n, S. Lukic n  & S. Ahmed

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UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

2016 article

Universal Restart Strategy for High-Inertia Scalar-Controlled PMSM Drives

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, Vol. 52, pp. 4001–4009.

By: K. Lee n, S. Ahmed * & S. Lukic n 

author keywords: AC machines; flying restart; permanent magnet synchronous motor (PMSM); position and speed estimation
Source: Web Of Science
Added: August 6, 2018

2015 conference paper

A universal restart strategy for permanent magnet synchronous machines

2015 IEEE Energy Conversion Congress and Exposition (ECCE), 373–380.

By: K. Lee n, S. Lukic n  & S. Ahmed

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Receivers for Multifrequency Wireless Power Transfer: Design for Minimum Interference

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 3(1), 234–241.

By: Z. Pantic *, K. Lee n & S. Lukic n 

author keywords: Cross coupling; inductive power transfer (IPT); multireceiver systems; multiresonant receivers; multiresonant wireless power transfer
TL;DR: This paper quantifies how the power delivered to each receiver is affected due to the resonant frequency shift resulting from receiver mutual coupling and adopts the concept of frequency traps as a method to completely decouple the receivers. (via Semantic Scholar)
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7. Affordable and Clean Energy (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Multifrequency Inductive Power Transfer

IEEE TRANSACTIONS ON POWER ELECTRONICS, 29(11), 5995–6005.

By: Z. Pantic *, K. Lee n & S. Lukic n 

author keywords: Inductive power transfer (IPT); multifrequency systems; transconductance
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Reflexive Field Containment in Dynamic Inductive Power Transfer Systems

IEEE TRANSACTIONS ON POWER ELECTRONICS, 29(9), 4592–4602.

By: K. Lee n, Z. Pantic* & S. Lukic n 

author keywords: Inductive power transfer (IPT); resonant coupling; roadway-powered electric vehicles
TL;DR: The proposed system uses the reactance reflected by the receiver to automatically increase the field strength in coupled portions of the transmitter-receiver system, thus allowing efficient power transfer and adherence to electromagnetic field emission standards without complex shielding circuits, switches, electronics, and communication. (via Semantic Scholar)
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UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2013 conference paper

Field containment in dynamic wireless charging systems through source-reciever interaction

2013 IEEE Energy Conversion Congress and Exposition, 3658–3663.

By: K. Lee n, Z. Pantic n & S. Lukic n 

UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

2013 conference paper

Inductive power transfer by means of multiple frequencies in the magnetic link

2013 IEEE Energy Conversion Congress and Exposition, 2912–2919.

By: Z. Pantic n, K. Lee n & S. Lukic n 

TL;DR: The theory of source and receiver resonant tank design is developed, the complete methodology for determining the system quality factor, effective resistance and power transfer at each frequency is presented, and a case study of a system that transfers equal amounts of power is presented. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

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