Zobrazeno 1 - 10 of 33 pro vyhledávání: '"Kang Soon Ahn"'
1
Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC Inverters
Autor: Yong-Seung Oh, Kyu-Min Cho, Kang-Soon Ahn, Wonseok Oh
Publikováno v: Energies, Vol 14, Iss 5535, p 5535 (2021)
Energies
Volume 14
Issue 17
This study presents a novel switching scheme for three-level neutral point clamped (NPC) inverters. The proposed switching method independently drives the upper- and lower-arm elements of the inverter based on the polarity information of the referenc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7237cc86a4c5a3e24a615a5acfad9e36
https://www.mdpi.com/1996-1073/14/17/5535
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3
A Study on the Development of a 1 MW Grid-Connected Photovoltaic Inverter System
Autor: Yong-Seung Oh, Kyu-Min Cho, Kang-Soon Ahn
Publikováno v: 2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON).
This paper presents a multi-central type 1 MW grid-connected photovoltaic inverter system, which consists of two 500 kW inverter panels that are composed of four 125 kW power stacks. In order to improve the reliability of large capacity inverter syst
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e56ddcd94450c8a6d04a6284e2e94865
https://doi.org/10.1109/rtucon48111.2019.8982367
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4
A Study on a Carrier Based PWM having Constant Common Mode Voltage and Minimized Switching Frequency in Three-level Inverter
Autor: Kang-Soon Ahn, Nam-Sup Choi, Hee-Jun Kim, Eun-Chul Lee
Publikováno v: Journal of Electrical Engineering and Technology. 11:393-404
In this paper, a carrier-based pulse with modulation (PWM) strategy for three-phase three- level inverter is dealt with, which can keep the common mode voltage constant with minimized switching frequency. The voltage gain and the switching frequency
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d6e9cf9e16f24d77972af72096ef5701
https://doi.org/10.5370/jeet.2016.11.2.393
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6
Optimal Design of Stator Shape for Cogging Torque Reduction of Single-phase BLDC Motor
Autor: Dong-Hwa Chung, Kang-Soon Ahn, Dae-Kyong Kim, Young-Un Park, Yong-Min Yoo, Ji-Young So, Ju-Hee Cho
Publikováno v: The Transactions of The Korean Institute of Electrical Engineers. 62:1528-1534
This paper proposes the optimal design of stator shape for cogging torque reduction of single-phase brushless DC (BLDC) motor with asymmetric notch. This method applied size and position of asymmetric notches to tapered teeth of stator for single-pha
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ac75083c0c8c22e4beeb897b380d24d
https://doi.org/10.5370/kiee.2013.62.11.1528
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7
Development of 10kW Permanent Magnet Synchronous Generator for Small Hydropower Generation
Autor: Dae-Kyong Kim, Ji-Young So, Chong-Hyoun Cho, Dong-Hwa Chung, Kang-Soon Ahn, Hak-Gyun Jeong
Publikováno v: Journal of the Korean Institute of Illuminating and Electrical Installation Engineers. 27:44-52
This paper presents the development of 10 kW permanent magnet synchronous generator (PMSG) for small hydropower plants considering flow rates and net head. The initial and detailed design are determined using a load distribution method (LDM) which is
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c94540feda4f20b4e11f9c9ea56591a
https://doi.org/10.5207/jieie.2013.27.9.044
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8
Space vector PWM for common mode voltage reduction and neutral point voltage balancing in three-level converters
Autor: Kang-Soon Ahn, Eun-Chul Lee, Nam-Sup Choi
Publikováno v: 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia).
This paper proposes a new space vector pulse-width modulation (PWM) for common mode (CM) voltage reduction and neutral point (NP) voltage balancing in three-level converters. In case of unbalanced NP voltage, a group of the space vectors that increas
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a6b0179ef634be6ea5b5f04d1d52174
https://doi.org/10.1109/ipemc.2016.7512673
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9
A carrier-based medium vector PWM strategy for three-level inverters in transformerless photovoltaic systems
Autor: Eun-Chul Lee, Kang-Soon Ahn, Nam-Sup Choi
Publikováno v: 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia).
This paper proposes a new carrier-based PWM strategy for three-level inverter in transformerless photovoltaic systems. The proposed modulation method completely eliminates leakage currents by employing only medium vectors and one zero vector which pr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::729e2f8ee9341a6ed99ff0209e0bcd63
https://doi.org/10.1109/icpe.2015.7168160
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10
A new oven detection algorithm and control of IH-Jar achieved by DSP control
Autor: Kang-Soon Ahn, Yong-Seung Oh, Hee-Jun Kim
Publikováno v: INTELEC 2009 - 31st International Telecommunications Energy Conference.
This paper suggests a new method for oven detection in those induction heating rice cooker (IH-Jar) circuits that are controlled by DSP. The designed control method calculates oven detection levels based on changes in input currents during oven detec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba87c8af5af05590a0e06a008f47dfc0
https://doi.org/10.1109/intlec.2009.5351902
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