Author
Control and Systems Engineering Department, Baghdad, Iraq
Abstract
Step down DC-DC converters are power electronic circuits, which mainly used to convert voltage from a level to a lower level. In this paper, a discontinuous controller is proposed as a control method in order to control Step-Down DC-DC converters. A Lyapunov stability criterion is used to mathematically prove the ability of the proposed controller to give the desired voltage. Simulationsl1 are performedl1 in MATLABl1 software. The simulationl1 resultsl1 are presentedl1 for changesl1 in referencel1 voltagel1 and inputl1 voltagel1 as well as stepl1 loadl1 variations. The resultsl1 showl1 the goodl1 performancel1 of the proposedl1 discontinuousl1 controller.
Keywords
Main Subjects
[2] J. C. Maxwell, “Control design techniques in power electronics devices,” Springer, New York, NY, USA, 2016.
[3] A. I. Pressman, “Switching power supply design,” McGrew Hill, New York, 2nd ed., 2018.
[4] J. H. Su, J. J. Chen, and D. S. Wu, “Learning feedback controller design of switching converters via MATLAB/SIMULINK,” IEEE Transactions on Education, Vol. 45, No. 4, pp. 307–315, 2012.
[5] J. A. Qahouq, O. Abdel-Rahman, L. Huang, and I. Batarseh, “On load adaptive control of voltage regulators for power managed loads: control schemes to improve converter efficiency and performance,” IEEE Transactions on Power Electronics, Vol. 22, No. 5, pp. 1806–1819, 2017.
[6] P. Mattavelli, L. Rossetto, G. Spiazzi, and P. Tenti, “General purpose sliding-mode controller for DC/DC converter applications,” in Proceedings of the IEEE 24th Annual Power Electronics Specialist Conference (PESC ’93), pp. 609–615, Seattle, Wash, USA, June 2013.
[7] H. Guldemir, “Sliding mode control of DC-DC converters,” Journal of Applied Sciences, Vol. 5, No. 3, pp. 558–592, 2015.
[8] S.C. Tan, Y.M. Lai, and C.K. Tse, “Indirect sliding mode control of power converters via double integral sliding surface,” IEEE Transactions on Power Electronics, Vol. 23, No. 2, pp. 600–611, 2018.
[9] M. Ahmed, M. Kuisma, and P. Silventoinen, “Implementing simple procedure for controlling switch mode power supply using sliding mode control technique,” in Proceedings of the 13th International Symposium on Electrical Apparatus and Technologies, Plovdiv, Bulgaria, pp. 9–14, May 2013.
[10] B.F. Midhat, “Discontinuous control analysis for step down DC-DC voltage converters,” IJCCCE, Vol. 19, No. 1, pp. 35-41, 2019.
[11] M. Sarvi, I. Soltani, N. NamazyPour, and N. Rabbani, ”A new sliding mode controller for DC/DC converters in photovoltaic systems,” Hindawi Publishing Corporation, Journal of Energy, Vol. 2013, ID 871025, pp. 1-7, 2013.
[12] H.K. Khalil,” Nonlinear systems,” PRENTICE HALL, 3rd ed., New Jersey, USA, 2002.
)
