Vui lòng dùng định danh này để trích dẫn hoặc liên kết đến tài liệu này: http://repository.ntt.edu.vn/jspui/handle/298300331/349
Nhan đề: A Modified Single-Phase Quasi-Z-Source AC–AC Converter
Tác giả: Nguyen, Minh Khai
Lim, Young-Cheo
Kim, Yong-Jae
Department of Electrical and Electronic Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
Department of Electrical Engineering, Chonnam National University, Buk-gu, Korea
Department of Electrical Engineering, Chosun University, Dong-gu, Korea
Từ khoá: Terms—Buck–boost capability
Pulsewidth modulation (PWM)
Quasi-Z-source converter
Single-phase ac–ac converter
Năm xuất bản: thá-2012
Nhà xuất bản: IEEE Transactions on Power Electronics
Tùng thư/Số báo cáo: Vol. 27, Issue 1 (2012);P. 201-210
Tóm tắt: A modified single-phase quasi-Z-source ac-ac converter is proposed in this paper. The proposed converter has the main features in that the output voltage can be bucked or boosted and be both in-phase and out-of-phase with the input voltage. The input voltage and output voltage share the same ground, the size of a converter is reduced, and it operates in a continuous current mode. A safe-commutation strategy for the modified single-phase quasi-Z-source ac-ac converter is used instead of a snubber circuit. The operating principles and a steady-state analysis are presented. A laboratory prototype, tested using a resistive load, a passive load, and a nonlinear load, was constructed that used an input voltage of 70 V rms /60 Hz in order to verify the performance of the modified single-phase quasi-Z-source ac-ac converter. The experimental results verified that the converter has a lower input current total harmonic distortion, a higher input power factor, and a higher efficiency in comparison to a conventional single-phase Z-source ac-ac converter. In addition, the experimental results show that the use of the safe-commutation strategy is a significant improvement, as it makes it possible to avoid voltage spikes on the switches.
Mô tả: 10 p.
Định danh: http://repository.ntt.edu.vn/jspui/handle/298300331/349
Bộ sưu tập: ĐIỆN_ĐIỆN TỬ_J

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