Control of a Single Stage Boost Inverter Based on Dynamic Sliding Mode Control with Power Decoupling

Document Type : Original Article

Authors

Faculty of Electrical Engineering and Robotics, Shahrood University of Technology, Shahrood, Iran

Abstract

In this paper, the problem of control a single-stage boost inverter is studied. The goal is to achieve a system with robustness against variations in parameters, fast response, high-quality AC voltage, and smooth DC current. To this end, a new type of dynamic sliding mode control is proposed to apply to various scenarios such as parameter uncertainties and DC input voltages. In comparison with the conventional double-loop controllers, the proposed sliding mode controller utilizes only a single loop in its design, while having attractive features such as robustness against parametric uncertainties. In addition, a methodology is proposed for the decoupling of double-frequency power ripples based on proportional-resonant (PR) control to remove the low-frequency current ripples without using additional power components. Compared to conventional controllers, the proposed controller provides several features such as fast and chattering-free response, robustness against uncertainty in the parameters, smooth control, proper steady-state error, decoupled power and good total harmonic distortion (THD) over the output voltage and input currents, and simple implementation. In a fair comparison with classical sliding mode control, simulation results demonstrate more satisfactory performance and effectiveness of the proposed control method.

Keywords


1.     Tran, T.-T., Nguyen, M.-K., Oh, S.-H., Ko, P.-J. and Cho, G.-B., "A single-phase type-boost integrated inverter for photovoltaic applications", Journal of Clean Energy Technologies,  Vol. 6, No. 1, (2018).
2.     Zhao, B., Abramovitz, A., Liu, C., Yang, Y. and Huangfu, Y., "A family of single-stage, buck-boost inverters for photovoltaic applications", Energies,  Vol. 13, No. 7, (2020), 1675.https://doi.org/10.3390/en13071675
3.     Wai, R.-J., Chen, M.-W. and Liu, Y.-K., "Design of adaptive control and fuzzy neural network control for single-stage boost inverter", IEEE Transactions on Industrial Electronics,  Vol. 62, No. 9, (2015), 5434-5445.DOI: 10.1109/TIE.2015.2408571
4.     Abeywardana, D.B.W., Hredzak, B. and Agelidis, V.G., "A rule-based controller to mitigate dc-side second-order harmonic current in a single-phase boost inverter", IEEE Transactions on Power Electronics,  Vol. 31, No. 2, (2015), 1665-1679.DOI: 10.1109/TPEL.2015.2421494
5.     Lopez-Caiza, D., Flores-Bahamonde, F., Kouro, S., Santana, V., Müller, N. and Chub, A., "Sliding mode based control of dual boost inverter for grid connection", Energies,  Vol. 12, No. 22, (2019), 4241. https://doi.org/10.3390/en12224241
6.     Flores-Bahamonde, F., Valderrama-Blavi, H., Bosque-Moncusi, J.M., Garcia, G. and Martinez-Salamero, L., "Using the sliding-mode control approach for analysis and design of the boost inverter", IET Power Electronics,  Vol. 9, No. 8, (2016), 1625-1634. DOI: 10.1049/iet-pel.2015.0608
7.     Özdemir, A. and Erdem, Z., "Double-loop pi controller design of the dc-dc boost converter with a proposed approach for calculation of the controller parameters", Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering,  Vol. 232, No. 2, (2018), 137-148. https://doi.org/10.1177/0959651817740006
8.     Chen, Y. and Zhang, B., Analysis of current-mode controlled pwm dc/dc converters based on espm, in Equivalent-small-parameter analysis of dc/dc switched-mode converter. 2019, Springer.131-158. http://dx.doi.org/10.1007/978-981-13-2574-8_7
9.     Kumar, S.S. and Kumar, V., "Voltage mode control of integrated boost series parallel fly-back converter for energy storage applications", Energy Procedia,  Vol. 117, (2017), 62-70. https://doi.org/10.1016/j.egypro.2017.05.107
10.   Xu, S., Cao, B., Chang, L., Shao, R. and Mao, M., "Single-phase voltage source inverter with voltage boosting and power decoupling capabilities", IEEE Journal of Emerging and Selected Topics in Power Electronics,  Vol. 8, No. 3, (2019). DOI: 10.1109/JESTPE.2019.2936136
11.   Watanabe, H., Sakuraba, T., Furukawa, K., Kusaka, K. and Itoh, J.-i., "Development of dc to single-phase ac voltage source inverter with active power decoupling based on flying capacitor dc/dc converter", IEEE Transactions on Power Electronics,  Vol. 33, No. 6, (2017), 4992-5004. DOI: 10.1109/TPEL.2017.2727063
12.   Xu, S., Chang, L., Shao, R. and Mohomad, A.H., "Power decoupling method for single-phase buck-boost inverter with energy-based control", in 2017 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE. (2017), 3426-3431. DOI: 10.1109/APEC.2017.7931188
13.   Shawky, A., Sayed, M.A. and Takeshita, T., "Selective harmonic compensation of three phase grid tied sepic based differential inverter", in 2019 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE. (2019), 396-403. DOI: 10.1109/APEC.2019.8721854
14.   Jiao, J., Hung, J.Y. and Nelms, R., "Improved selective harmonic compensation for single-phase inverters", in 2018 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE. (2018), 1329-1335. DOI: 10.1109/APEC.2018.8341189
15.   Yu, Z., Hu, X., Yao, Z., Chen, L., Zhang, M. and Jiang, S., "Analysis and design of a transformerless boost inverter for stand-alone photovoltaic generation systems", CPSS Transactions on Power Electronics and Applications,  Vol. 4, No. 4, (2019), 310-319. DOI: 10.24295/CPSSTPEA.2019.00029
16.          Std.‐519, I., "Ieee recommended practices and requirements for harmonic control in electric power systems",  New York, IEEE (1992).