[논문]병렬 연결된 두 개의 Interleaved CrM Boost PFC 컨버터의 부하 공유 방법

김문영; 강신호; 강정일; 한종희

doi:10.6113/tkpe.2021.26.1.53

병렬 연결된 두 개의 Interleaved CrM Boost PFC 컨버터의 부하 공유 방법
A Load Sharing Method of Parallel-connected Two Interleaved CrM Boost PFC Converters 원문보기

전력전자학회 논문지 = The Transactions of the Korean Institute of Power Electronics, v.26 no.1, 2021년, pp.53 - 58

김문영 (Visual Display Business, Samsung Electronics Co., Ltd.) , 강신호 (Visual Display Business, Samsung Electronics Co., Ltd.) , 강정일 (Visual Display Business, Samsung Electronics Co., Ltd.) , 한종희 (Visual Display Business, Samsung Electronics Co., Ltd.)

Abstract ▼ AI-Helper

Operation of the interleaved Boost PFC converter in Critical Conduction Mode (CrM) shows the advantages of high efficiency and good EMI characteristics owing to the valley switching of FET. However, when it is designed for a highly pulsating load, operation at a relatively high frequency is inevitable at non-pulsating typical load condition, resulting in efficiency degradation. Moreover, the physical size of the inductor becomes problematic because of the nature of the CrM operation, where the inductor peak current is about two times the inductor average current, thereby requiring high DC-bias characteristics, which is worse when the output power is high. In this study, a new parallel driving method of two sets of interleaved boost PFC converters for highly pulsating high-power application is proposed. The proposed method does not require any additional load-sharing controller, resulting in high efficiency and smaller inductor size.

주제어

표/그림 (16)

그림 Fig. 1. Proposed parallel implementation of two interleaved CrM PFC converters.
그림 Fig. 2. Equivalent circuits of boost converter according to FET ON/OFF states.
그림 Fig. 3. Inductor current waveform and powering energy to output
그림 Fig. 4. Fault logic diagram of UCC28064^[1].
그림 Fig. 5. Disable feedback of Slave module with direct connection and its equivalent circuit.
그림 Fig. 6. Disable feedback of Slave module with diode connection and its equivalent circuit
그림 Fig. 7. Asymmetric off time control.
그림 Fig. 8. Simulation result of asymmetric off time control.
그림 Fig. 9. Simulation result according to frequency mismatch.
그림 Fig. 10. Power structure of target application.
그림 Fig. 11. PFC design considering peak power.
그림 Fig. 12. Master / Slave inductor current (Steady state).
그림 Fig. 13. Master / Slave key waveforms (Transient state).
그림 Fig. 14. Board comparison between previous and proposed works.
그림 Fig. 15. Load deviation according to load conditions.
그림 Fig. 16. Load deviation with Min / Max inductor sample (± 10%).

참고문헌 (12)

Infineon "Power factor correction (PFC) with XMC TM ," Infineon Application Note, Jul. 2016.
R. Giri, V. Choudhary, R. Ayyanar, and N. Mohan, "Common-duty-ratio control of input-series connected modular DC-DC converters with active input voltage and load-current sharing," IEEE Transactions on Industry Applications, Vol. 42, No. 4, pp. 1101-1111, Jul./Aug. 2006.

상세보기
A. K. Panda, P. R. Mohanty, T. Penthia, and N. Patnaik, "Dual output interleaved PFC for alleviating mutual interference between loads during transients," in 2016 IEEE UPCON, Varanasi, pp. 289-294, 2016.
A. K. Panda, P. R. Mohanty, T. Penthia, and N. Patnaik, "Dual output interleaved PFC for alleviating mutual interference between loads during transients," in 2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON), Varanasi, pp. 289-294, 2016.
H. Li, H. Ma, J. Jiang, and X. Yang, "Passivity-based control of four-phase interleaved PFC based on EL model," in Proceedings of The 7th International Power Electronics and Motion Control Conference, Harbin, pp. 735-739, 2012.
G. Cao and H. Kim, "A novel critical-conduction-mode bridgeless interleaved boost PFC rectifier," in 2014 International Power Electronics Conference (IPEC-Hiroshima 2014-ECCE ASIA), Hiroshima, pp. 2587-2592, 2014.
L. Meng, Y. Fang, and Y. Xing, "Current sharing control for boost PFC converters in parallel operation," in 2005 IEEE International Conference on Industrial Technology, Hong Kong, pp. 502-507, 2005.
L. Meng, Y. Fang, Y. Xing, and D. Fu, "Novel control for boost PFC modules in parallel operation," in 2005 International Conference on Electrical Machines and Systems, Nanjing, Vol. 2, pp. 1189-1193, 2005.
H. Kim, G. Seo, B. Cho, and H. Choi, "A simple average current control with on-time doubler for multiphase CCM PFC converter," in IEEE Transactions on Power Electronics, Vol. 30, No. 3, pp. 1683-1693, Mar. 2015.

상세보기
IC Datasheet, "UCC28064 Natural Interleaving TM transition -mode PFC controller with high light-load efficiency," Application Note, 2017. [Online]. Available: https://www.ti.com/product/UCC28064A.
J. H. Kim, J. W. Yang, D. H. Jang, J. I. Kang, and S. K. Han, "High efficiency and small size switch mode line transformer (SMLT)," in Transactions of the Korean Institute of Power Electronics, Vol. 24, No. 4, pp. 237-243, Aug. 2019.

원문보기 상세보기
J. H. Kim, J. W. Yang, D. H. Jang, J. I. Kang, and S. K. Han, "High efficiency switch mode line transformer (SMLT) composed of load sharing dual modules," The Transactions of the Korean Institute of Power Electronics, Vol. 25, No. 3, pp. 188-194, Jun. 2020.

원문보기 상세보기

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