International Journal of Energy Engineering          
International Journal of Energy Engineering(IJEE)
Frequency: Yearly
Editor-in-Chief: Prof. Sri Bandyopadhyay(Australia)
Performance Analysis of The Simple Low Cost Buck-Boost Ac-Ac Converter
Full Paper(PDF, 207KB)
A simple voltage converter based on LC network is capable of bucking and boosting the voltage level of input supply without any phase difference. The number of reactive components and switches used in the circuit is minimum. The paper presents the working principle and elaborates performance evaluation of this converter in different operating conditions. High speed IGBTs are used as bi-directional switch of the ac-ac converter and it is able to deliver smooth variable output voltage across the load without using any additional filter. The optimise use of the LC network helps to make the circuit simple, small size and cost-effective. The effects of L and C were studied separately and the quality of the output was examined with total harmonic distortion. The effect of switching frequency over the performance is also presented. The converter operation was verified with suitable experimental support.
Keywords:Ac-ac Converter; Z-Source Converter; Buck-Boost; Llow Cost
Author: Santosh Sonar1, T. Maity2, T. Maity2
1.Indian School Of Mines,Dhanbad,India
2.Department of Electrical Engineering Indian School of Mines, Dhanbad 826004, India.
  1. C. Liu, BinWu, Navid R. Zargari, Dewei (David) Xu, and Jiacheng Wang, “A novel three phase three-leg AC/AC converter using nine IGBTs”, IEEE Trans. Power Electronics, vol. 24(5), pp. 1151–60, 2009.
  2. T. Wijekoon, Christian Klumpner, Pericle Zanchetta and Patrick W. Wheeler “Implementation of a hybrid ac–ac direct power converter with unity voltage transfer”, IEEE Trans. Power Electronics, vol. 23(4), pp. 1918–26, 2008.
  3. R. Lai, Fei (Fred) Wang, Rolando Burgos, et al “A systematic topology evaluation methodology for high-density three-phase PWM ac–ac converters”, IEEE Trans. Power Electronics, vol. 23(6), pp. 2665–80, 2008.
  4. R. Vargas, Ulrich Ammann, and José Rodríguez, “ Predictive approach to increase efficiency and reduce switching losses on matrix converters.” IEEE Trans. Power Electronics, vol. 24(4), pp. 894–902, april.2009.
  5. P. C. Loh, et al., “Digital carrier modulation and sampling issues of matrix converters”. IEEE Trans. Power Electronics, vol. 24(7), pp 1690–1700, 2009.
  6. X. P. Fang, Zhao Ming Qian,and Fang Zheng Peng,, “Single-phase Z-source PWM ac–ac converters”, IEEE Power Electroics. Letter, vol. 3(4), pp 121–124,December. 2005.
  7. Y. Tang, S. J. Xie, and C. H. Zhang, “Z-source ac–ac converters solving commutation problem”, IEEE Trans. Power Electronics, vol. 22(6), pp. 2146–54, December.2007.
  8. Jong-Hyun Kim, Byung-Duk Min, Bong-Hwan Kwon,and Sang-Chul Won, “A PWM Buck–Boost AC Chopper Solving the Commutation Problem” IEEE transactions on industrial electronics, VOL. 45, NO. 5, October 1998.