Tanvir Hossain, Mohammad RubaiyatAbedin, Amina HasanChoudhury, Mohammad Ali A ShoukatUddin, Mohammad Nasir2016-12-082016-12-082013Tanvir Hossain, M. R., Abedin, A. H., Choudhury, M. A., & Uddin, M. N. (2013). True three-phase bidirectional switch based AC-AC buck-boost converter topology. Paper presented at the 2013 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies, AEECT 2013, doi:10.1109/AEECT.2013.6716458978-147992303-8http://hdl.handle.net/10361/7172This conference paper was presented in the 2013 2nd IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies, AEECT 2013; Amman; Jordan; 3 December 2013 through 5 December 2013 [© 2013 IEEE Computer Society] The conference paper's definite version is available at: http://doi.org/10.1109/AEECT.2013.6716458A new three-phase true bidirectional switch is proposed in this paper. This switch consist of a unidirectional switch enclosed in two three phase diode bridges with bidirectional input and output terminals. A family of simple topologies of three-phase AC-AC converters using the true bidirectional switch is possible as direct extension of DC-DC converters having similar operating principle. Steady state analysis and simulation results are presented in this paper using the Buck-Boost topology as an example. Performance of the circuit has been found satisfactory with duty cycle variation. The proposed converter can be used for AC-AC line conditioning to overcome voltage sags, surges, and load fluctuations. Because the proposed converters employ only two active devices, they can reduce cost and complexity and improve system reliability.enAC voltage controllerBuck-boost converterPower qualitySwitch mode ac-ac converterTrue three-phase bidirectional switchConference Paperhttp://doi.org/10.1109/AEECT.2013.6716458