Ui-Min Choi, Hae-Gwang Jeong, and Kyo-Beum Lee, "Method of Neutral-point Voltage Balancing for a Grid Connected NPC Inverter System with Time-offset Variant Estimating," in Proc. IPEMC (ECCE-Asia) Conf., Jun. 2012, pp. 499–504. > Paper

Paper

International Conference Ui-Min Choi, Hae-Gwang Jeong, and Kyo-Beum Lee, "Method of Neutral-point Voltage Balancing for a Grid Connected NPC Inverter System with Time-offset Variant Estimating," in Proc. IPEMC (ECCE-Asia) Conf., Jun. 2012, pp. 499–504.

2012

본문

This paper proposes a neutral-point voltage balancing method for a grid-connected NPC inverter system. The proposed method is

achieved by adding the time-offset to three phase turn-on times of switches. The proper time-offset is simply obtained through the

proposed time-offset variant estimating. By using the proposed method, it is possible to balance the neutral-point voltage without

additional hardware, complex calculation and analysis. Simulations are carried out to confirm the effectiveness of the proposed

method.

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Paper 목록
번호	년도	논문명
259	2013	International Conference June-Seok Lee, Kyo-Beum Lee, and Frede Blaabjerg, "Open-Switch Fault Detection Method of an NPC Converter for Wind Turbing Systems," in Proc. ECCE Conf., Sep. 2013, pp. 1696–1701.
258	2013	International Conference Yongsoo Cho, Dong-Hee Kim, Kyo-Beum Lee, Young Il Lee, and Joong-Ho Song, "Torque Ripple Reduction and Fast Torque Response Strategy of Direct Torque Control for Permanent-Magnet Synchronous Motor," in Proc. ISIE Conf., May 2013, pp. 1–6.
257	2013	International Conference Hae-Gwang Jeong, Hak-Seung Ro, and Kyo-Beum Lee, "A Control Scheme of the Low Voltage Ride Through in Wind turbines using a Direct Power Control Based on a Sliding Mode Control," in Proc. ISIE Conf., May 2013, pp. 1–6.
256	2013	International Conference Dong-Hee Kim, Hae-Gwang Jeong, and Kyo-Beum Lee, "Torque Ripple Minimization of Switched Reluctance Motors Based on Fuzzy Logic and Sliding Mode Control," in Proc. ISIE Conf., May 2013, pp. 1–6.
255	2013	International Conference Hak-Seung Ro, Hae-Gwang Jeong, and Kyo-Beum Lee, "Torque Ripple Minimization of Switched Reluctance Motor Using Direct Torque Control Based on Sliding Mode Control," in Proc. ISIE Conf., May 2013, pp. 1–6.
254	2013	International Conference Hyunseob Kim, Jungho Han, Young-Il Lee, Joong-Ho Song, and Kyo-Beum Lee, "Torque Predictive Control of Permanent-Magnet Synchronous Motor using Duty Ratio Prediction," in Proc. ISIE Conf., May 2013, pp. 1–5.
253	2012	International Conference Yongsoo Cho, Kyo-Beum Lee, Mengqiu Li, Joong-Ho Song, and Youngil Lee, "Novel Torque Predictive Control for a Permanent-Magnet Synchronous Motor with Minimum Torque Ripple and Fast Dynamics," in Proc. of APEC Conf., Mar. 2013, pp. 2253–2258.
252	2012	International Conference June-Seok Lee and Kyo-Beum Lee, "Modulation Technique to Reduce Leakage Current in Transformerless Photovoltaic Systems using a Three-Level Inverter," in Proc. APEC Conf., Mar. 2013, pp. 700–705.
251	2012	International Conference Hae-Gwang Jeong and Kyo-Beum Lee, "A Controller Design of Quick Chargers with a Current Offset Compensator," in Proc. VPPC Conf., Oct. 2012, pp. 695–699.
250	2012	International Conference Hae-Gwang Jeong and Kyo-Beum Lee, "Stability Improvement in an On-Board Battery Charger for Electric Vehicles," in Proc. VPPC Conf., Oct. 2012, pp. 690–694.
249	2012	International Conference Hyun-Hee Lee, Ui-Min Choi, and Kyo-Beum Lee, "Neutral-Point Voltage Control for Grid-connected Three-Level Inverters using a Discontinuous Pulse Width Modulation," in Proc. VPCC Conf., Oct. 2012, pp. 638–642.
248	2012	International Conference Ui-Min Choi and Kyo-Beum Lee, "Detection Method of an Open-Switch Fault and Fault-Tolerant Strategy for a Grid-Connected T-Type Three-Level Inverter System," in Proc. ECCE Conf., Sep. 2012, pp. 4188–4195.
247	2012	International Conference Ui-Min Choi and Kyo-Beum Lee, and Frede Blaabjerg, "Diagnosis method of an Open-Switch Fault for a Grid-Connected T-type Three-level Inverter System," in Proc. PEDG Conf., Jun. 2012, pp. 470–475.
246	2012	International Conference Gwang-Seob Kim and Kyo-Beum Lee, "Fault Diagnosis and Fault-Tolerant Control of a DC-Link Voltage Sensor for PV Inverters," in Proc. IPEMC (ECCE-Asia) Conf., Jun. 2012, pp. 1408–1412.
245	2012	International Conference Jong-Kyu Kim, Jong-Hyun Lee, Hae-Gwang Jeong, and Kyo-Beum Lee, "Improvement of Grid-Connected Inverter Systems with PR Controllers under the Unbalanced and Distorted Grid Voltage," in Proc. IPEMC (ECCE-Asia) Conf., Jun. 2012, pp. 1183–1187.

Paper 목록

번호

년도

논문명

259

2013

International Conference

June-Seok Lee, Kyo-Beum Lee, and Frede Blaabjerg, "Open-Switch Fault Detection Method of an NPC Converter for Wind Turbing Systems," in Proc. ECCE Conf., Sep. 2013, pp. 1696–1701.

258

2013

International Conference

Yongsoo Cho, Dong-Hee Kim, Kyo-Beum Lee, Young Il Lee, and Joong-Ho Song, "Torque Ripple Reduction and Fast Torque Response Strategy of Direct Torque Control for Permanent-Magnet Synchronous Motor," in Proc. ISIE Conf., May 2013, pp. 1–6.