June-Seok Lee and Kyo-Beum Lee, “New Modulation Techniques for a Leakage Current Reduction and a Neutral-Point Voltage Balance in Transformerless Photovoltaic Systems Using a Three-Level Inverter,” IEEE Transactions on Power Electronics, vol. 29, no. 4, p > Paper

본문 바로가기

Paper

International Journals June-Seok Lee and Kyo-Beum Lee, “New Modulation Techniques for a Leakage Current Reduction and a Neutral-Point Voltage Balance in Transformerless Photovoltaic Systems Using a Three-Level Inverter,” IEEE Transactions on Power Electronics, vol. 29, no. 4, pp. 1720–1732, Apr. 2014. -SCI

2014

본문

Transformerless topologies of many topologies are widely used in photovoltaic (PV) systems because these topologies have many

advantages in terms of the weight, size, and efficiency. A three-level inverter has an outstanding performance and is advantageous

in the switching device selection than a two-level inverter. In the transformerless PV systems using the three-level inverter, the PV

systems should suffer from the leakage current and generate the neutral-point voltage unbalance. To solve two problems, this paper

proposes modulation techniques to reduce the leakage current and balance the dc-link voltages. The cause of the leakage current

in the three-level inverter is analyzed. The proposed technique LMZVM using the large, medium, and zero vectors reduces the

common mode voltage that causes the leakage current than that of the conventional PWM. Moreover, the proposed technique

LMSVM using the large, medium, and small vectors balances the dc-link voltages with reduced CMV as the same in LMZVM. The

effectiveness of the proposed techniques is verified by comparing its results with those of the convectional PWM. The results are

obtained through simulations and experiments. 

첨부파일

  • 67.pdf (2.0M) 47회 다운로드 | DATE : 2019-06-30 15:13:59
Total 281건 11 페이지
Paper 목록
번호 년도 논문명
131 2018 International Journals
130 2018 International Journals
129 2017 International Journals
128 2017 International Journals
127 2017 International Journals
126 2017 International Journals
125 2017 International Journals
124 2017 International Journals
123 2017 International Journals
122 2017 International Journals
121 2017 International Journals
120 2017 International Journals
119 2017 International Journals
118 2017 International Journals
117 2017 International Journals
게시물 검색

회원로그인

접속자집계

오늘
599
어제
523
최대
3,510
전체
810,339

그누보드5