Rae-Ho Kwak, “단상 NPC 3레벨 인버터의 효율 개선과 고조파 저감을 위한 새로운 불연속 전압 변조 방식,” 아주대학교 공학석사 학위 논문, 2017. > Paper

본문 바로가기

Paper

Thesis Rae-Ho Kwak, “단상 NPC 3레벨 인버터의 효율 개선과 고조파 저감을 위한 새로운 불연속 전압 변조 방식,” 아주대학교 공학석사 학위 논문, 2017.

2017

본문

This paper proposes a discontinuous pulse width modulation (DPWM) method to improve current total harmonic distortion (THD) and

achieve high efficiency for a single-phase neutral-point clamped (NPC) three-level inverter. In the most of the single phase systems,

the bipolar or unipolar PWM (UPPWM) method is commonly used. However, these PWM methods have the disadvantages in an aspect

of the power losses because of many switching operations. The DPWM methods can improve efficiency but increase current THD as

well. To reduce these weaknesses, the proposed DPWM method combines two PWM methods, which are the UPPWM and 

conventional DPWM. Since the proposed DPWM method has all the advantages of both methods, the optimal performance about the 

power losses and current THD can be obtained. The process to divide optimally operation range of two PWM methods is introduced 

based on the analysis of the power loss and current THD. The effectiveness of the proposed DPWM method is shown through the 

simulation and experiments.

 

첨부파일

  • 74.pdf (2.4M) 5회 다운로드 | DATE : 2019-12-24 11:55:15
Total 120건 3 페이지
Paper 목록
번호 년도 논문명
90 2018 Thesis
89 2018 Thesis
88 2018 Thesis
87 2018 Thesis
86 2018 Thesis
85 2018 Thesis
84 2018 Thesis
83 2018 Thesis
82 2017 Thesis
81 2017 Thesis
80 2017 Thesis
79 2017 Thesis
78 2017 Thesis
77 2017 Thesis
76 2017 Thesis
게시물 검색

회원로그인

접속자집계

오늘
82
어제
374
최대
903
전체
248,411

그누보드5