Small Signal Modeling of a Synchronous Isolated Cuk Converter used in Photovoltaic Systems
محورهای موضوعی : Electrical EngineeringAtila Skandarnezhad 1 , Yaghoob Mohammadmoradi 2 , Nader Javadifar 3
1 - Department of Electrical Engineering , Aliabad katoul Branch, Islamic Azad University, Aliabad Katoul, Iran
2 - Department of physics, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, Iran
3 - Department of Electrical Engineering , Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul ,Iran
کلید واژه: Photovoltaic system, Cuk converter, Small signal model, Averaging Technique,
چکیده مقاله :
This paper presents the small-signal modeling of a synchronous Cuk converter using state-space averaging method. In the proposed isolated converter, the conduction and switching losses reduced by replacing the traditional diode with transistor and employing an auxiliary circuit. It causes the conversion efficiency of the photovoltaic system to be increased and better matching of the supplied load. Also this circuit has significant advantage over other topologies since it enables low voltage ripple on both input/output sides of the converter and better dynamic response. The low frequency small-signal model is done using state space averaging technique and two main power-stage transfer functions are derived, which are control-to-output voltage transfer function and input-to-output voltage transfer function. Using the proposed model of the converter we can analyze and simulate the time domain transient behavior of the system accurately and intuitively. Finally, the accuracy and validity of the proposed system model is verified by simulation results.
[1] Peter Wurfel, Physics of Solar Cells: From Basic Principles to Advanced Concepts,Wiley, p.5-15, 2009.
[2] Alexander P. Kirk, Solar Photovoltaic Cells: Photons to Electricity, Academic Press, p.100-105, 2014.
[3] Neacsu Dorin, Power-Switching Converters: Medium & High Power, Taylor & Francis, p. 80-85, 2018.
[4] Fang Lin Luo and Hong Ye, Advanced DC/DC Converters, CRC Press, p. 115-125, 2016.
[5] Mugdha V Dambhare, Bhavana Butey and S V Moharil, "Solar photovoltaic technology: A review of different types of solar cells and its future trends", International Conference on Research Frontiers in Sciences (ICRFS 2021), Ser. 1913, 2021, pp. 1-17.
[6] Y. Bhaskar gupta and Sri Rama Lakshmi, "Analysis and Design of CUK Converter using PI Controller for PV Application", International Journal for Scientific Research & Development, Vol. 2, 2014, pp. 669-672.
[7] Ammar Falah Algamluoli, "Novel Controller for DC-DC Cuk Converter", IEEE Global Power, Energy and Communication Conference, June 2019, pp. 134-140.
[8] Ajin R. L, P.S. Raghavendran and V. Surendar, "Design and Implementation of Hybrid Converter for PV System for Both AC and DC Load", IEEE International Conference on Recent Advances in Energy-efficient Computing and Communication (ICRAECC), March 2019, pp. 123-129.
[9] Aniruddh Kulkarni, P. N. Kapil, "Novel Method for State Space Modeling of FullBridge Converter", International Journal of Innovative Technology and Exploring Engineering (IJITEE), Vol.8 Issue-12, 2019, pp. 4421-4426.
[10] Shokati Asl, Shadnam Zarbil and Sabahi M, "High Performance Cuk Converter Considering Non-Linear Inductors For Photovoltaic System Applications", Journal of Operation and Automation in Power Engineering, Vol. 3, No. 2, 2015, pp. 158-166.
