Voltage Regulation of a Negative Output Luo Converter Using a PD-PI Type Sliding Mode Current Controller

Authors

Department of Electrical Engineering, Faculty of Engineering, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran

Abstract

This paper describes a new design for direct sliding mode method with a high switching frequency using the PD-PI type sliding surface applied to a negative output Luo converter worked in continuous current mode for applications required constant power source such as aerospace applications, medical equipment and etc. Because of the output power and line changes, the converter model is also nonlinear and time varying. In addition, losses dissipation and voltage drops caused a deviation between the theoretical and actual output voltage of this converter. For improvement of the converter performance along with the current and voltage regulations, a nonlinear controller is required. This suggested controller is proper to inherently variable structure of the converter and can cope with nonlinearities associated with its model. The goal is to ensure a satisfactory response for the converter. The practical results showed that the proposed strategy helps to eliminate the voltage error along with continuous current operation of the converter in very light loads and high switching frequency in different operating points.

Keywords


Prabhakar, M., “High gain dc-dc converter using active clamp circuit (research note)”, International Journal of Engineering-Transactions A: Basics, Vol. 27, No. 1, (2013), 123-130.
Adell, P. C., Witulski, A. F., Schrimpf, R. D., Baronti, F., et al., “Digital control for radiation-Hardened switching converters in space”, IEEE Transactions on Aerospace and Electronic Systems, Vol. 46, No. 2, (2010), 761-770.
Goudarzian, A., Nasiri, H., Abjadi, N., “Design and implementation of a constant frequency sliding mode controller for a Luo converter”, International Journal of Engineering-Transactions B: Applications, Vol. 29, No. 2, (2016), 202-210.
Forouzesh, M., Siwakoti, Y., Gorji, A., Blaabjerg, F., Lehman, B., “Step-up dc/dc converters: a comprehensive review of voltage boosting techniques, topologies, and applications”, IEEE Transactions on Power Electronics, Vol. 32, No. 12, (2017), 9143-9178.
Babu, R., Deepa, S., Jothivel, S., “A closed loop control of quadratic boost converter using PID-controller”, International Journal of Engineering-Transactions B: Applications, Vol. 27, No. 11, (2014), 1653-1662
Sarvi, M., Derakhshan, M., Sedighi Zade, M., “A new intelligent controller for parallel dc/dc converters”, International Journal of Engineering-Transactions B: Basics, Vol. 27, No. 1, (2014), 131-142   
Suntio, T., “On dynamic modeling of PCM-controlled converters-buck converter as an example”, IEEE Transactions on Power Electronics, Vol. 33, No. 6, (2017), 5502-5518.
Abjadi, N. R., Goudarzian, A. R., Arab Markadeh, Gh. R., Valipour, Z., “Reduced-order backstepping controller for POESLL DC/DC converter based on pulse width modulation”, Iranian Journal of Science and Technology, Transactions of Electrical Engineering, (2018), To be published:doi.org/10.1007/s40998-018-0096-y(01
Azadnia, A. H., Siahi, A., Motameni. M., “An adaptive fuzzy neural network model for bankruptcy prediction of listed companies on the Tehran stock exchange. International Journal of Engineering-Transactions C: Aspects, Vol. 30, No. 12 (2017) 1879-1884
Vali, M. H., Rezaie, B., Rahmani, Z., “Designing a neuro-sliding mode controller for networked control systems with packet dropout”, International Journal of Engineering-Transactions A: Basics, Vol. 29, No. 4, (2016), 490-499.
Goudarzian, A., Khosravi, A., “Design, analysis, and implementation of an integral terminal reduced‐order sliding mode controller for a self‐lift positive output Luo converter via Filippov's technique considering the effects of parametric resistances”, International Transactions on Electrical and Energy Systems, (2018), e2776. https://doi.org/10.1002/etep.2776.
Nasiri, H., Goudarzian, A., Pourbagher, R., Derakhshandeh, S. Y., “PI and PWM sliding mode control of POESLL converter”, IEEE Transactions on Aerospace and Electronic Systems, Vol. 53, No. 5, (2017), 2167-2177.
Qi, W., Li, S., Tan, S. C., Hui, S., “Parabolic-modulated sliding mode voltage control of buck converter”, IEEE Transactions on Industrial Electronics, Vol. 65, No. 1, (2018), 844-854.
Zhao, Y., Qiao, W., Ha, D., “A sliding mode duty ratio controller for dc/dc buck converters with constant power loads”, IEEE Transactions on Industrial Applications, Vol. 50, No. 2, (2014), 1448-1458.
Mamarelis, E., Petrone, G., Spagnuolo, G., “Design of a sliding-mode-controlled SEPIC for PV MPPT applications”, IEEE Transactions on Industrial Electronics, Vol. 61, No. 7, (2014), 3387-3398.
Vidal-Idiarte, E., Carrejo, C. E., Calvente, J., Martínez-Salamero, L., “Two-loop digital sliding mode control of dc/dc power converters based on predictive interpolation”, IEEE Transactions on Industrial Electronics, Vol. 58, No. 6, (2011), 2491-2501.
Bhat, S., Nagaraja, H. N., “DSP based proportional integral sliding mode controller for photo-voltaic system”, International Journal of Electrical Power & Energy Systems, Vol. 71, (2015), 123-130.  
Knalil, H. K. Nonlinear Systems. Upper Saddle River, NJ: Prentice-Hall, (2002).