Eui-Jae Lee, Seok-Min Kim, and Kyo-Beum Lee, "Modified Phase-Shifted PWM Scheme for Reliability Improvement in Cascaded H-Bridge Multilevel Inverters," IEEE Access, vol. 8, pp. 78130–78139, Apr. 2020. -SCIE > Paper

본문 바로가기

Paper

International Journals Eui-Jae Lee, Seok-Min Kim, and Kyo-Beum Lee, "Modified Phase-Shifted PWM Scheme for Reliability Improvement in Cascaded H-Bridge Multilevel Inverters," IEEE Access, vol. 8, pp. 78130–78139, Apr. 2020. -SCIE

2020

본문

The cascaded H-bridge multilevel inverter (CHMI) is a modular structure that consists of many power semiconductor switches. With

this increase in the number of power semiconductor switches, it is hard to predict and handle the failure of the devices, and hence

reliability of CHMI decreases. The major cause of power semiconductor switch failure is junction temperature that is produced by

power losses. The study proposes a multi-carrier pulse-width modulation (PWM) scheme for reduction in switching losses of CHMI. In

the proposed modulation scheme, the two legs conduct switching operation at different frequencies for switching reduction. One

leg conducts switching operation with high frequency, while the other leg conducts switching operation with fundamental frequency.

The switching operations with different frequencies cause unbalanced switching loss to each leg. Therefore, the junction temperature

that is based on power losses leads to different life-times for the power semiconductor switch. Additionally, the switching frequency

of the two legs is alternated to evenly distribute switching losses and junction temperature. Simulation and experimental results

verify the performance of the proposed PWM scheme.

첨부파일

  • 188.pdf (2.4M) 30회 다운로드 | DATE : 2020-05-21 15:52:39
Total 221건 3 페이지
Paper 목록
번호 년도 논문명
191 2020 International Journals
190 2020 International Journals
189 2020 International Journals
열람중 2020 International Journals
187 2020 International Journals
186 2020 International Journals
185 2020 International Journals
184 2020 International Journals
183 2020 International Journals
182 2020 International Journals
181 2020 International Journals
180 2019 International Journals
179 2019 International Journals
178 2019 International Journals
177 2019 International Journals
게시물 검색

회원로그인

접속자집계

오늘
88
어제
374
최대
903
전체
248,417

그누보드5