PUBLICATIONS

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.

글쓴이 관리자
날짜 2019-06-28 19:20
조회 1,477

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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날짜
238

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.

관리자

1473

19-06
237

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.

관리자

1478

19-06
236

Eunsil Lee, Kyo-Beum Lee, Jae-Sik Lim, Youngil Lee and Joong-Ho Song, "Predictive Current Control for a Sparse Matrix Converter," in Proc. IPEMC (ECCE-Asia) Conf., Jun. 2012, pp. 36–40.

관리자

1541

19-06
235

Eunsil Lee and Kyo-Beum Lee, "Fault Diagnosis for a Sparse Matrix Converter using Current Patterns," in Proc. APEC Conf., Feb. 2012, pp. 1549–1554.

관리자

1473

19-06
234

Won-Sang Im, Jong-Joo Moon, Jang-Mok Kim, Dong-Choon Lee, and Kyo-Beum Lee, "Fault Tolerant Control Strategy of 3-phase AC-DC PWM Converter under Multiple Open-switch Faults Conditions," in Proc. APEC Conf., Feb. 2012, pp. 789–795.

관리자

1466

19-06
233

Won-Sang Im, Jang-Mok Kim, Dong-Choon Lee, and Kyo-Beum Lee, "Diagnosis and Fault-tolerant Control of 3-phase AC-DC PWM Converter System," in Proc. ECCE Conf., Sep. 2011, pp. 1328–1333.

관리자

1568

19-06
232

Youngjong Ko, Hae-Gwang Jeong, Kyo-Beum Lee, Dong-Choon Lee, and Jang-Mok Kim, "Diagnosis of the Open-Circuit Fault in Three-Parallel Voltage-Source Converter for a High-Power Wind Turbine," in Proc. ECCE Conf., Sep. 2011, pp. 877–882.

관리자

1545

19-06
231

Youngjong Ko, Kiwoo Park, Kyo-Beum Lee, and Frede Blaabjerg, "A New PLL System using Full Order Observer and PLL System Modeling in a Single Phase Grid-Connected Inverter," in Proc. ICPE (ECCE-Asia) Conf., May/Jun. 2011, pp. 803–808.

관리자

1546

19-06
230

Kiwoo Park and Kyo-Beum Lee, "A Z-source Sparse Matrix Converter under a Voltage Sag Condition," in Proc. ECCE Conf., Sep. 2010, pp. 2893–2898.

관리자

1455

19-06
229

Dong-Keun Yoon, Hea-Gwang Jeong, and Kyo-Beum Lee, "The Design of an LCL-Filter for the Three-Parallel Operation of a Power Converter in a Wind Turbine," in Proc. ECCE Conf., Sep. 2010, pp. 1537–1544.

관리자

1496

19-06
228

Sol-Bin Lee and Kyo-Beum Lee, "Performance Improvement of a DFIG in a Wind Turbine under an Unbalanced Grid-Voltage Condition," in Proc. ISIE, Jul. 2010, pp. 986–991.

관리자

1474

19-06
227

Kiwoo Park, Eun-Sil Lee, and Kyo-Beum Lee, "A Z-source Sparse Matrix Converter with a Fuzzy Logic Controller based Compensation Method under Abnormal Input Voltage Conditions," in Proc. ISIE, Jul. 2010, pp. 614–619.

관리자

1535

19-06
226

Dae-Keun Choi, Duk-Hong Kang, and Kyo-Beum Lee, "A Novel Gain Scheduling Method for Distributed Power Generation Systems with a LCL-Filter By Estimating Grid impedance," in Proc. ISIE, Jul. 2010, pp. 3438–3443.

관리자

1448

19-06
225

Yi-Kyu Kang, Hea-Gwang Jeong, and Kyo-Beum Lee, "Control Method in a Wind Turbine driven by 3-Parallel Back-to-Back Converters using PQR Power Transformation," in Proc. IPEC (ECCE-Asia) Conf., Jun. 2010, pp. 2562–2568.

관리자

1356

19-06
224

Kiwoo Park, Sung-Tak Jou, and Kyo-Beum Lee, "Z-Source Matrix Converter with Unity Voltage Transfer Ratio," in Proc. IECON Conf., Nov. 2009, pp. 4523–4528.

관리자

1759

19-06

PUBLICATIONS

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.

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