Seungjong Yoo, Yongsoo Cho, Kyo-Beum Lee, and Daebong Lee, “Neutral Point Voltage Control Method for Reliability Improvement of UPS System Using Multi-level Inverter,” 전력전자학술대회 논문집, pp. 486–487, 2014. > Paper

Paper

Domestic Conference Seungjong Yoo, Yongsoo Cho, Kyo-Beum Lee, and Daebong Lee, “Neutral Point Voltage Control Method for Reliability Improvement of UPS System Using Multi-level Inverter,” 전력전자학술대회 논문집, pp. 486–487, 2014.

2014

본문

본 논문은 멀티레벨 인버터를 이용한 무정전 전원장치 시스템 (UPS; Uninterruptible Power Supply)의 신뢰성 향상을 위한 중성점

전압 불평형 제어 기법을 제안한다. 무정전 전원장치 시스템 (UPS)은 불평형 부하조건 시 직류단에 전압 불평형이 발생되며 이는

출력 전류의 왜곡을 일으켜, 민감한 부하에 손상을 입힐 수 있다. 제안한 제어기는 커패시터 전압 측정을 통해 시간오프셋을

추정한 후 공간 벡터 변조 방식의 변형 없이 중성점 전압 불평형을 제어하여, 직류단의 전압을 평형상태로 유지한다. 또한,

100kW급 UPS 시스템 시뮬레이션 검증을 통해 제어기의 타당성을 입증하였다.

첨부파일

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Paper 목록
번호	년도	논문명
185	2017	Domestic Conference Dong-woo Seo, June-Hee Lee, and Kyo-Beum Lee, "Optimal Valley Switching Method for High Efficiency and Low Cost Interleaved Quasi-Resonant Flyback Converter," 전력전자학술대회 논문집, pp. 30–31, 2017.
184	2016	Domestic Conference Woo Jin Choi, Jung-Rok Lee, and Kyo-Beum Lee, "Fault Diagnosis and Tolerance Control for a Multi-Phase Interleaved Bi-directional DC-DC Converter," 대한전기학회 전기기기 및 에너지변환시스템부문회 추계학술대회 논문집, pp. 198–200, 2016.
183	2016	Domestic Conference Min-Gyo Jeong, Tcai Anatolii, and Kyo-Beum Lee, "DC-Link Current Ripple Reduction with an Interleaving Scheme in Three-Parallel Wind Power System," 전력전자학술대회 논문집, pp. 249–250, 2016.
182	2016	Domestic Conference Hyochul In, Yongsoo Cho, and Kyo-Beum Lee, "Torque Predictive Control of Induction Motor Drives with Improved Performance and Reduced Torque Ripple," 전력전자학술대회 논문집, pp. 251–252, 2016
181	2016	Domestic Conference Jiook Sin, Yeongsu Bak, and Kyo-Beum Lee, “6th Harmonic Control Method for Reduction of Grid Current Harmonic Distortion in a Grid-Connected Inverter,” 전력전자학술대회 논문집, pp. 145–146, 2016.
180	2016	Domestic Conference Hyun-Cheol Moon, June-Hee Lee, June-Seok Lee, and Kyo-Beum Lee, “MPC-SVM Method using Segmentation of Space Voltage Vectors in a Voltage Source Inverter,” 전력전자학술대회 논문집, pp. 163–164, 2016.
179	2016	Domestic Conference Han Rim Lee, Woo Jin Choi, and Kyo-Beum Lee, “ Hybrid MPPT Algorithm for a Stand-Alone Photovoltaic System,” 전력전자학술대회 논문집, pp. 181–182, 2016.
178	2015	Domestic Conference Raeho Kwak, June Hee Lee, and Kyo-Beum Lee, “Anti-islanding Detection of a AFD Method applied to Grid Connected Micro Inverter,” 전력전자학술대회 논문집, pp. 524–525, 2015.
177	2015	Domestic Conference Won Seok Jung, Yeongsu Bak, Eunsil Lee, and Kyo-Beum Lee, “Control Strategy of Induction Motor Driven by a Matrix Converter Operating in Boost Mode,” 전력전자학술대회 논문집, pp. 499–500, 2015.
176	2015	Domestic Conference Seung Gyu Seo, Yongsoo Cho, and Kyo-Beum Lee, “Virtual Flux Estimation Using Modified Integrator of a Three-Phase AC/DC Converter for Direct Power Control,” 전력전자학술대회 논문집, pp. 399–400, 2015.
175	2015	Domestic Conference Seong-Yun Kang, Hye-Ung Shin, and Kyo-Beum Lee, “Field Weakening Control for Five-Phase Induction Motor Drives considering the Effect of the 3rd Harmonic,” 전력전자학술대회 논문집, pp. 343–344, 2015.
174	2015	Domestic Conference Seungjong Yoo, June-Seok Lee, and Kyo-Beum Lee, “The DPWM Method to Reduce Neutral-Point Voltage Ripple in a Three-Level Inverter,” 전력전자학술대회 논문집, pp. 315–316, 2015.
173	2015	Domestic Conference Jin-Hyuk Park, Dong Yeob Han, and Kyo-Beum Lee. “Improved DPWM Scheme for Grid-Connected Inverters with an LCL-Filter,” 전력전자학술대회 논문집, pp. 295–296, 2015.
172	2014	Domestic Conference Yong-Gyu Song, Seung-Joo Lee, June-Seok Lee, and Kyo-Beum Lee, “High Efficient Switching Strategy for Single Phase Three-level NPC Inverters,” 전력전자학술대회 논문집, pp. 500–501, 2014.
171	2014	Domestic Conference Hyun Woo Sim, June-Seok Lee, Kyo-Beum Lee, and Dae Bong Lee, “Cascaded H-bridge Multilevel Inverter Scheme for Increasing Voltage Level,” 전력전자학술대회 논문집, pp. 496–497, 2014.

Paper 목록

번호

년도

논문명

185

2017

Domestic Conference

Dong-woo Seo, June-Hee Lee, and Kyo-Beum Lee, "Optimal Valley Switching Method for High Efficiency and Low Cost Interleaved Quasi-Resonant Flyback Converter," 전력전자학술대회 논문집, pp. 30–31, 2017.

184

2016

Domestic Conference

Woo Jin Choi, Jung-Rok Lee, and Kyo-Beum Lee, "Fault Diagnosis and Tolerance Control for a Multi-Phase Interleaved Bi-directional DC-DC Converter," 대한전기학회 전기기기 및 에너지변환시스템부문회 추계학술대회 논문집, pp. 198–200, 2016.