Refine your search
Collections
Co-Authors
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Asokkumar, S.
- Performance Improvement of Bridgeless Cuk Converter Using Hysteresis Controller
Abstract Views :768 |
PDF Views:2
Authors
M. Sujith
1,
S. Asokkumar
1
Affiliations
1 Department of EEE, IFET College of Engineering, Villupuram
1 Department of EEE, IFET College of Engineering, Villupuram
Source
International Journal of Electrical Engineering, Vol 6, No 1 (2013), Pagination: 1-10Abstract
The single-phase ac-dc rectifiers based on bridgeless Cuk topologies are proposed and analyzed using controller. The absence of an input diode bridge and the presence of only two semiconductor switches in the current flowing path during each interval of the switching cycle result in high output voltage with reduction in total harmonic distortion compared to the conventional Cuk converter . The proposed topologies are designed to work in both continuous and discontinuous conduction mode using hysteresis controller to achieve the low total harmonic distortion with achievable output voltage. This operation gives additional advantages such as zero-current turn-ON and turn-OFF in the power switches and output diode with simple control circuitry. Performance comparisons between the proposed and conventional Cuk Converter are performed based on circuit simulations. Simulation results for a 100 Vrms line input voltage to evaluate the performance of the proposed bridgeless PFC rectifiers are provided.Keywords
Terms—Bridgeless Rectifier, Cuk Converter, Power Factor Correction (PFC) Rectifier, Total Harmonic Distortion (THD)References
- W. Choi, J.Kwon, E. Kim, J. Lee, and B.Kwon, “Bridgeless boost rectifier with lowconduction losses and reduced diode reverse-recovery problems,” IEEE Trans. Ind. Electron., vol. 54, no. 2, pp. 769–780, Apr. 2007.
- G. Moschopoulos and P. Kain, “A novel single-phase soft-switched rectifier with unity power factor and minimal component count,” IEEE Trans. Ind. Electron., vol. 51, no. 3, pp. 566–575, Jun. 2004.
- R.-L. Lin and H.-M. Shih, “Piezoelectric transformer based current-source charge-pump power-factor-correction electronic ballast,” IEEE Trans. Power Electron., vol. 23, no. 3, pp. 1391–1400, May 2008.
- S. Dwari and L. Parsa, “An efficient AC–DC step-up converter for lowvoltage energy harvesting,” IEEE Trans. Power Electron., vol. 25, no. 8, pp. 2188–2199, Aug. 2010.
- Y. Jang and M. Jovanovic, “A bridgeless PFC boost rectifier with optimized magnetic utilization,” IEEE Trans. Power Electron., vol. 24, no. 1, pp. 85–93, Jan. 2009.
- L. Huber, Y. Jang, and M. Jovanovic, “Performance evaluation of bridgeless PFC boost rectifiers,” IEEE Trans. Power Electron., vol. 23, no. 3, pp. 1381–1390, May 2008.
- B. Su and Z. Lu, “An interleaved totem-pole boost bridgeless rectifier with reduced reverse-recovery problems for power factor correction,” IEEE Trans. Power Electron., vol. 25, no. 6, pp. 1406–1415, Jun. 2010.
- B. Su, J. Zhang, and Z. Lu, “Totem-pole boost bridgeless PFC rectifier with simple zero-current detection and full-range ZVS operating at the boundary of DCM/CCM,” IEEE Trans. Power Electron., vol. 26, no. 2, pp. 427–435, Feb. 2011.
- H.-Y. Tsai, T.-H. Hsia, and D. Chen, “A family of zero-voltage-transition bridgeless power-factor-correction circuits with a zero-current-switching auxiliary switch,” IEEE Trans. Ind. Electron., vol. 58, no. 5, pp. 1848– 1855, May 2011.
- H. Ye, Z. Yang, J. Dai, C. Yan, X. Xin, and J. Ying, “Common mode noise modeling and analysis of dual boost PFC circuit,” in Proc. Int. Telecommun. Energy Conf., Sep. 2004, pp. 575–582.
- B. Lu, R.Brown, and M. Soldano, “Bridgeless PFC implementation using one cycle control technique,” in Proc. IEEE Appl. Power Electron. Conf., Mar. 2005, pp. 812–817.
- P. Kong, S.Wang, and F. C. Lee, “Common mode EMI noise suppression for bridgeless PFC converters,” IEEE Trans. Power Electron., vol. 23, no. 1, pp. 291–297, Jan. 2008.
- W.-Y. Choi, J.-M. Kwon, E.-H. Kim, J.-J. Lee, and B.-H. Kwon, “Bridgeless boost rectifier with low conduction losses and reduced diode reverserecovery problems,” IEEE Trans. Ind. Electron., vol. 54, no. 2, pp. 769– 780, Apr. 2007.
- C.-M. Wang, “A novel single-stage high-power-factor electronic ballast with symmetrical half-bridge topology,” IEEE Trans. Ind. Electron., vol. 55, no. 2, pp. 969–972, Feb. 2008.
- B. Su, J. Zhang, and Z. Lu, “Single inductor three-level boost bridgeless PFC rectifier with nature voltage clamp,” IEEE Int. Power electron. Conf., pp. 2092–2097, Jun. 2010.
- M. Mahdavi and H. farzanehfard, “Zero-current-transition bridgeless PFC without extra voltage and current stress,” IEEE Trans. Ind. Electron., vol. 56, no. 7, pp. 2540–2547, Jul. 2009.
- W.-Y. Choi and J.-S. Yoo, “A bridgeless single-stage half-bridge AC/DC converter,” IEEE Trans. Power Electron., vol. 26, no. 12, pp. 3884– 3895, Dec. 2011.
- W. Wei, L. Hongpeng, J. Shigong, and X. Dianguo, “A novel bridgeless buck-boost PFC converter,” in Proc. IEEE Power Electron. Spec. Conf., 2008, pp. 1304–1308.
- E. H. Ismail, “Bridgeless SEPIC rectifier with unity power factor and reduced conduction losses,” IEEE Trans. Ind. Electron., vol. 56, no. 4, pp. 1147–1157, Apr. 2009.
- A. Sabzali, E. H. Ismail, M. Al-Saffar, and A. Fardoun, “New bridgeless DCM sepic and Cuk PFC rectifiers with low conduction and switching losses,” IEEE Trans. Ind. Appl., vol. 47, no. 2, pp. 873–881, Mar./Apr. 2011.
- M. Mahdavi and H. Farzanehfard, “Bridgeless SEPIC PFC rectifier with reduced components and conduction losses,” IEEE Trans. Ind. Electron., vol. 58, no. 9, pp. 4153–4160, Sep. 2011.
- M. R. Sahid, A. H. M. Yatim, and T. Taufik, “A new AC-DC converter using bridgeless SEPIC,” in Proc. IEEE Annu. Conf. Ind. Electron. Soc., Nov. 2010, pp. 286–290.
- L. Huber, L. Gang, and M. M. Jovanovic, “Design-oriented analysis and performance evaluation of buck PFC front-end,” IEEE Trans. Power Electron., vol. 25, no. 1, pp. 85–94, Jan. 2010.
- Y. Jang and M. M. Jovanovi´c, “Bridgeless high-power-factor buck converter,” IEEE Trans. Power Electron., vol. 26, no. 2, pp. 602–611, Feb. 2011.
- J. M. Alonso, M. A. Dalla Costa, and C. Ordizl, “Integrated buckflyback converter as a high-power-factor off-line power supply,” IEEE Trans. Ind. Electron., vol. 55, no. 3, pp. 1090–110, Mar. 2008.
- M. Brkovic and S. Cuk, “Input current shaper using Cuk converter,” in Proc. Int. Telecommun. Energy Conf., 1992, pp. 532–539.
- D. S. L. Simonetti, J. Sebastian, and J. Uceda, “The discontinuous conduction mode Sepic and Cuk power factor preregulators: Analysis and design,” IEEE Trans. Ind. Electron., vol. 44, no. 5, pp. 630–637, Oct. 1997.
- Y.-S. Roh, Y.-J. Moon, J.-C. Gong, and C. Yoo, “Active power factor correction (PFC) circuit with resistor-free zero-current detection,” IEEE Trans. Power Electron., vol. 26, no. 2, pp. 630–637, Feb. 2011.
- Enhanced Index Based GenMax for Frequent Item Set Mining
Abstract Views :202 |
PDF Views:1
The proposal in this paper present an improved index based enhancement on Genmax algorithm for effective fast and less memory utilized pruning of maximal frequent item and closed frequent item sets. The extension induces a search tree on the set of frequent closed item sets thereby we can completely enumerate closed item sets without duplications. The memory use of mining the maximal frequent item set does not depend on the number of frequent closed item sets. The proposed model reduce the number of disk I/Os and make frequent item set mining scale to large transactional databases. Experimental results shows a comparison of improved index based GenMax and existing GenMax for efficient pruning of maximal frequent and closed frequent item sets in terms of item precision and fastness.
Authors
S. Asokkumar
1,
S. Thangavel
2
Affiliations
1 Management Studies, Mahendra Engineering College, Mallasamuthiram, Namakkal (Dt), IN
2 Department of EEE, K.S.R. College of Technology, Tiruchengode, Namakkal (Dt), IN
1 Management Studies, Mahendra Engineering College, Mallasamuthiram, Namakkal (Dt), IN
2 Department of EEE, K.S.R. College of Technology, Tiruchengode, Namakkal (Dt), IN
Source
Data Mining and Knowledge Engineering, Vol 3, No 11 (2011), Pagination: 663-667Abstract
In many data mining applications such as the discovery of association rules, strong rules, and many other important discovery tasks, mining frequent item sets is a fundamental and essential problem. Methods have been implemented for mining frequent item sets using a prefix-tree structure, for storing compressed information GenMax is used for mining maximal frequent item sets. It uses a technique called progressive focusing to perform maximal checking, and differential set propagation to perform fast frequency computation. Genmax algorithm was not implemented for closed frequent item set.The proposal in this paper present an improved index based enhancement on Genmax algorithm for effective fast and less memory utilized pruning of maximal frequent item and closed frequent item sets. The extension induces a search tree on the set of frequent closed item sets thereby we can completely enumerate closed item sets without duplications. The memory use of mining the maximal frequent item set does not depend on the number of frequent closed item sets. The proposed model reduce the number of disk I/Os and make frequent item set mining scale to large transactional databases. Experimental results shows a comparison of improved index based GenMax and existing GenMax for efficient pruning of maximal frequent and closed frequent item sets in terms of item precision and fastness.