[논문]Novel Buck Mode Three-Level Direct AC Converter with a High Frequency Link

Li, Lei; Guan, Yue; Gong, Kunshan; Li, Guangqiang; Guo, Jian

doi:10.6113/jpe.2018.18.2.407

Novel Buck Mode Three-Level Direct AC Converter with a High Frequency Link 원문보기

Journal of power electronics, v.18 no.2, 2018년, pp.407 - 417

Li, Lei (School of Automation, Nanjing University of Science and Technology) , Guan, Yue (School of Automation, Nanjing University of Science and Technology) , Gong, Kunshan (School of Automation, Nanjing University of Science and Technology) , Li, Guangqiang (School of Automation, Nanjing University of Science and Technology) , Guo, Jian (School of Automation, Nanjing University of Science and Technology)

Abstract ▼ AI-Helper

A novel family of Buck mode three-level direct ac converters with a high frequency link is proposed. These converters can transfer an unsteady high ac voltage with distortion into a regulated sinusoidal voltage with a low THD at the same frequency. The circuit configuration is constituted of a three-level converter, high frequency transformer, cycloconverter, as well as input and output filters. The topological family includes forward, push-pull, half-bridge, and full-bridge modes. In order to achieve a reliable three-level ac-ac conversion, and to overcome the surge voltage and surge current of the cycloconverter, a phase-shifted control strategy is introduced in this paper. A prototype is presented with experimental results to demonstrate that the proposed converters have five advantages including high frequency electrical isolation, lower voltage stress of the power switches, bi-directional power flow, low THD of the output voltage, and a higher input power factor.

주제어

표/그림 (8)

그림 Fig. 1. Circuit diagrams for the proposed topological family. (a) Forward mode. (b) Interleaving forward mode. (c) Push-pull full-wavemode. (d) Push-pull full-bridge mode. (e) Half-bridge full-wave mode. (f) Half-bridge full-bridge mode. (g) Full-bridge full-wavemode. (h) Full-bridge full-bridge mode.
그림 Fig. 2. Principal waveforms within one switching period Ts.
표 TABLE I COMPARISON OF THE PROPOSED TOPOLOGIES
그림 Fig. 3. Twelve switching modes in the CCM during one switching period Ts. (a) [t1- t2]. (b) [t2- t3]. (c) [t3- t4]. (d) [t4- t5].(e) [t5- t6]. (f) [t6- t7]. (g) [t7- t8]. (h) [t8- t9]. (i) [t9- t10]. (j) [t10- t11]. (k) [t11- t12]. (l) [t12- t13].
그림 Fig. 4. Equivalent circuits in the CCM during one Ts. (a) State 1.(b) State 2.
그림 Fig. 5. Designed and developed prototype.
그림 Fig. 6. Principle test waveforms of the proposed converter. (a) CH2: uN1 (200V/div); CH1: iN1 (10A/div); t(5ms/div). (b) CH2: uN1(196V/div); CH1: iN1 (9.8A/div); t(20μs/div). (c) CH2: uAB (200V/div); CH1: iLf (10A/div); t(10ms/div). (d) CH2: uAB (146V/div);CH1: iLf (1.46A/div); t(18μs/div). (e) CH1: trigger voltage ugs1a of the power switch S1a (20V/div); CH2: voltage uds1a across S1a(200V/div); t(5ms/div). (f) CH1: trigger voltage ugs5b of the power switch S5b(20V/div); CH2: voltage uds5b across S5b (200V/div);t(10μs/div). (g) CH1: input voltage ui (200V/div); CH2: reference voltage uref (5V/div); t(5ms/div). (h) CH1: uo at a resistive load(100V/div); CH2: io at a resistive load (5A/div); t(10ms/div). (i) CH1: io at a RL load (5A/div); CH2: uo at a RL load (100V/div);t(10ms/div). (j) CH1: io at a RC load (2A/div); CH2: uo at a RC load (100V/div); t(10ms/div).
그림 Fig. 7. Conversion efficiency and line power factor versus theload at different input voltages. (a) Conversion efficiency ηversus output power Po at different input voltages ui. (b) Linepower factor cosφi versus output power Po at different inputvoltages ui.

AI 본문요약
AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

성능/효과

The developed prototype has good comprehensive performances: the normalized capacity S=500VA, Ui=198~242V(50Hz) ac, the load power factor range cosφL =-0.75~0.75, Uo=110±1V, fo=50Hz, the output voltage THD<3.5%, the conversion efficiency at the normalized different nature load is more than 80.0~87.0%, the line power factor at the normalized different nature load is more than 0.670~0.998, the DC component of uo is less than 0.1V, and the operational time is 120 min at a 110% normalized load.

참고문헌 (26)

H. Keyhani and H. A. Toliyat, "Isolated ZVS highfrequency- link AC-AC converter with a reduced switch count," IEEE Trans. Power Electron., Vol. 29, No. 8, pp. 4156-4166, Aug. 2014.

상세보기
U. Nasir, M. Rivera, A. Costabeber, and P. W. Wheeler, "A Venturini based modulation technique for a newisolated AC/AC power converter," IECON 2016 -42nd Annual Conference of the IEEE Industrial Electronics Society, pp. 6243-6248, 2016.
T. Friedli, J. W. Kolar, J. Rodriguez, and P. W. Wheeler, "Comparative evaluation of three-phase AC-AC matrix converter and voltage dc-link back-to-back converter systems," IEEE Trans. Ind. Electron., Vol. 59, No. 12, pp. 4487-4510, Dec. 2012.

상세보기
C. Li, Y. Deng, Z. Lv, W. Li, X. He, and Y. Wang, "Virtual quadrature source-based sinusoidal modulation applied to high-frequency link converter enabling arbitrary direct AC-AC power conversion," IEEE Trans. Power Electron., Vol. 29, No. 8, pp. 4195-4208, Aug. 2014.

상세보기
G. P. Adam, I. A. Abdelsalam, K. H. Ahmed, and B. W. Williams, "Hybrid multilevel converter with cascaded H-bridge cells for HVDC applications: operating principle and scalibility," IEEE Trans. Power Electron., Vol. 30, No. 1, pp. 65-77, Jan. 2015.

상세보기
J. Rodriguez, M. M. D. Bellar, and R. R. S. Munoz- Aguilar, "Multilevel-clamped multilevel converters," IEEE Trans. Power Electron., Vol. 27, No. 3, pp. 1055-1060, Mar. 2012.
K. K. Nallamekala and K. Sivakumar, "A fault-tolerant dual three-level inverter configuration for multipole induction motor drive with reduced torque ripple," IEEE Trans. Ind. Electron., Vol. 63, No. 3, pp. 1450-1457, Mar. 2016.

상세보기
A. Nami, J. Liang, F. Dukhuizen, and G. D. Demetriades, "Modular multilevel converters for HVDC applications: review on converter cells and functionalities," IEEE Trans. Power Electron., Vol. 30, No. 1, pp. 18-36, Jan. 2015.

상세보기
Z. Li, P. Wang, H. Zhu, and Y. Li, "An improved pulse width modulation method for chopper-cell-based modular multilevel converters," IEEE Trans. Power Electron., Vol. 27, No. 8, pp. 3472-3481, Aug. 2012.

상세보기
M. Sharifzade, H. Vahedi, R. Portillo, M. Khenar, A. Sheikholeslami, L. G. Franquelo, and K. Al-Haddad, "Hybrid SHM-SHE pulse amplitude modulation for high power four-leg inverter," IEEE Trans. Ind. Electron., Vol. 63, No. 11, pp. 7234-7242, Nov. 2016.

상세보기
H. Zhao, T. Jin, S. Wang, and L. Sun, "A real-time selective harmonic elimination based on a transient-free, inner closed-loop control for cascaded multilevel inverters," IEEE Trans. Power Electron., Vol. 31, No. 2, pp. 1000- 1014, Feb. 2016.

상세보기
D. Peftitsis, G. Tolstoy, A. Antonopoulos, and J. Rabkowski, "High-power modular multilevel converters with SiC JFETs," IEEE Trans. Power Electron., Vol. 27, No. 1, pp. 28-36, Jan. 2012.

상세보기
L. Zhang, K. Sun, Y. Xing, and J. Zhao, "A family of five-level dual-buck full-bridge inverters for grid-tied applications," IEEE Trans. Power Electron., Vol. 31, No. 10, pp. 7029-7042, Oct. 2016.

상세보기
N. D. Weise, G. Castelino, K. Basu, and N. Mohan, "A single-stage dual-active-bridge-based soft switched AC/DC converter with open-loop power factor correction and other advanced features," IEEE Trans. Power Electron., Vol. 29, No. 8, pp. 4007-4016, Aug. 2014.

상세보기
M. M. C. Merlin, T. C. Green, P. D. Mitcheson, D. R. Trainer, R. Critchley, W. Crookes, and F. Hassan, "The alternate arm converter: a new hybrid multilevel converter with dc-fault blocking capability," IEEE Trans. Power Del., Vol. 29, No. 1, pp. 310-317, Jan. 2014.

상세보기
H. Yang and M. Saeedifard, "A capacitor voltage balancing strategy with minimized ac circulating current for the DC-DC modular multilevel converter," IEEE Trans. Ind. Electron., Vol. 64, No. 2, pp. 956-965, Feb. 2017.

상세보기
S. Du, B. Wu, K. Tian, D. Xu, and N. R. Zargari, "A novel medium-voltage modular multilevel DC-DC converter," IEEE Trans. Ind. Electron., Vol. 63, No. 12, pp. 7939-7949, Dec. 2016.

상세보기
A. Gandomkar, A. Parastar, and J. Seok, "High-power multilevel step-up DC/DC converter for offshore wind energy systems," IEEE Trans. Ind. Electron., Vol. 63, No. 12, pp. 7574-7585, Dec. 2016.

상세보기
J. Napoles, A. J. Watson, J. J. Padilla, J. I. Leon, L. G. Franquelo, P. W. Wheeler, and M. A. Aguirre, "Selective harmonic mitigation technique for cascaded H-bridge rectifiers with nonequal dc link voltages," IEEE Trans. Ind. Electron., Vol. 60, No. 5, pp. 1963-1971, May 2013.

상세보기
A. Moeini, H. Iman-Eini, and A. Marzoughi, "DC link voltage balancing approach for cascaded H-bridge active rectifier based on selective harmonic elimination-pulse width modulation," IET Power Electron., Vol. 8, No. 4, pp. 583-590, Apr. 2015.

상세보기
D. Divan, J. Sastry, A. Prasai, and H. Johal, "Thin ac converters-a new approach for making existing grid assets smart and controllable," in Proc. IEEE Power Electron. Spec. Conf., pp. 1695-1701, 2008.
D. Divan and J. Sastry, "Control of multilevel direct ac converters," in Proc. IEEE Energy Convers. Congr. Expo., pp. 3077-3084, 2009.
Y. L. Meng, P. W. Wheeler, and C. Klumpner, “Spacevector modulated multilevel matrix converter,” IEEE Trans. Ind. Electron., Vol. 57, No. 10, pp. 3385-3394, Oct. 2010.

상세보기
L. Li, J. D. Yang, and Q. L. Zhong, “Novel family of single-stage three-level ac choppers,” IEEE Trans. Power Electron., Vol. 26, No. 2, pp. 504-511, Feb. 2011.

상세보기
L. Li and D. C. Tang, "Cascade three-level ac-ac direct converter," IEEE Trans. Ind. Electron., Vol. 59, No. 1, pp. 27-34, Jan. 2012.

상세보기
J. Zhu and L. Li, "Novel high frequency isolated half-bridge three-level AC/AC converter," 2011 6th IEEE Conference on Industrial Electronics and Applications, pp. 1583-1587, 2011.

표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증