Modeling of three-phase three-level rectifier with space vector pulse width modulation method in matlab/simulink program

Multi-level rectifiers have low harmonic content and electromagnetic interference (EMI). In recent years, especially in medium and high-power applications are increasing use. As the voltage level per switch and switching frequency are low, the multi-level rectifiers have low losses and high efficiency. In this study, three-level neutral point clamped (NPC) rectifier topology with pulse width modulation (PWM) is investigated and the decoupled equations in the d-q synchronous rotating axis of the rectifier are given and a space vector PWM (SVPWM) control algorithm based on the d-q synchronous rotating axis of three-level rectifier is proposed. The control of the whole system is provided by voltage oriented control (VOC) strategy, which enables the realization of control in cascade system with outer voltage and inner current control blocks. This paper is focused on explaining in detail modulus optimum and symmetrical optimum methods used in the design of the inner current and outer voltage PI controllers of the three-level rectifiers, respectively. PI voltage controller is used to keep the rectifier output voltage constant, and PI current controller is used to reduce the harmonic content of the grid current. In addition, a simplified method compared to conventional SVPWM is used to calculate switching times and switching sequences. In this study, three-level rectifier is simulated in Matlab / Simulink with the help of SVPWM. The performance of the circuit has been tested by changing both the load value and the load voltage suddenly and successful results have been achieved.

Keywords:

Three-level rectifier, space vector pulse width modulation, voltage oriented control modulus optimum, symmetrical optimum.,

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[1] Arifoğlu, U. (2002). Güç sistemlerinin bilgisayar destekli analizi (problem çözümlü). Alfa.
[2] Song, W. X., Cao, D. P., Qiu, J. Y., Chen, C., & Chen, G. C. (2009, May). Study on the control strategy of three-level PWM rectifier based on SVPWM. In 2009 IEEE 6th International Power Electronics and Motion Control Conference (pp. 1622-1625). IEEE.
[3] Wu, H., Liu, T., Yang, T., Wang, J., Ding, S., & Xing, Y. (2017, October). A modified SVPWM strategy applied to a three-phase three-port bidirectional AC-DC rectifier for efficiency enhancement. In 2017 IEEE Energy Conversion Congress and Exposition (ECCE) (pp. 3420-3426). IEEE.
[4] He, X., Han, P., Lin, X., Wang, Y., & Peng, X. (2018, May). SVPWM strategy based on multilevel 3LNPC-CR. In 2018 International Power Electronics Conference (IPEC-Niigata 2018-ECCE Asia) (pp. 1027-1031). IEEE.
[5] Cichowlas, M. (2004). PWM rectifier with active filtering. Warsaw University of Technology, Warsaw.
[6] Mukherjee, D., & Kastha, D. (2018). A reduced switch hybrid multilevel unidirectional rectifier. IEEE Transactions on Power Electronics, 34(3), 2070-2081.
[7] Lu, T., Zhao, Z., Zhang, Y., Zhang, Y., & Yuan, L. (2008, October). A novel direct power control strategy for three-level PWM rectifier based on fixed synthesizing vectors. In 2008 International Conference on Electrical Machines and Systems (pp. 1143-1147). IEEE.
[8] Jayaram, N., Agarwal, P., & Das, S. (2012, December). A Three Phase five level cascaded H-Bridge rectifier with zero current injection scheme. In 2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)(pp. 1-7). IEEE.
[9] Watson, A. J., Wheeler, P. W., & Clare, J. C. (2007, September). A selective harmonic elimination system for restoring and equalising DC link voltages in a multilevel active rectifier. In 2007 European Conference on Power Electronics and Applications(pp. 1-7). IEEE.
[10] Sharma, A. K., Mishra, V., Kaushik, N., Singhal, M., & Sharma, A. (2013). Advanced Techniques for Controlling Output Voltage of Inverter. International Journal of Electronics and Communication Engineering, 3(2).
[11] Rashid, M. H. (Ed.). (2017). Power electronics handbook. Butterworth-Heinemann.
[12] Nabae, A., Takahashi, I., & Akagi, H. (1981). A new neutral-point-clamped PWM inverter. IEEE Transactions on industry applications, (5), 518-523.
[13] Lu, T., Zhao, Z., Zhang, Y., & Yuan, L. (2009, May). A novel direct power control strategy with wide input voltage range for three-level PWM rectifier. In 2009 IEEE 6th International Power Electronics and Motion Control Conference (pp. 897-902). IEEE.
[14] Draou, A. (2013). A Space Vector Modulation Based Three-level PWM Rectifier under Simple Sliding Mode Control Strategy. Energy and Power Engineering, 5(03), 28.
[15] Phankong, N., Yuktanon, N., & Bhumkittipich, K. (2014). Design of Power Rectifier Circuit for Three-Level Back-to-Back Converter. Energy Procedia, 56, 574-583.
[16] Bajracharya, C., Molinas, M., Suul, J. A., & Undeland, T. M. (2008). Understanding of tuning techniques of converter controllers for VSC-HVDC. In Nordic Workshop on Power and Industrial Electronics (NORPIE/2008), June 9-11, 2008, Espoo, Finland. Helsinki University of Technology.
[17] Muriuki, J., Muriithi, C. M., Ngoo, L., & Nyakoe, G. N. (2016). Wider range of tuning theproposed VSC-HVDC system for improved controller performance.
[18] Setiawan, I., Facta, M., Priyadi, A., & Purnomo, M. H. (2017). Investigation of symmetrical optimum PI controller based on plant and feedback liniearization in grid tie inverter systems. International Journal of Renewable Energy Research, 7(3), 1228-1234.
[19] Kalitjuka, T. (2011). Control of voltage source converters for power system applications (Master's thesis, Institutt for elkraftteknikk).
[20] Abildgaard, E. N., & Molinas, M. (2012). Modelling and control of the modular multilevel converter (MMC). Energy Procedia, 20, 227-236.
[21] Machaba, M., & Braae, M. (2003). Explicit damping factor specification in symmetrical optimum tuning of PI controllers. In Proc. of First African Control Conference (pp. 3-5).
[22] Gao, S. H., & Qian, X. L. (2014, May). Research on modelling and control of three-level PWM rectifier system. In The 26th Chinese Control and Decision Conference (2014 CCDC) (pp. 3813-3817). IEEE.
[23] Tong, J., Liu, L. J., Qiao, J. W., Zhang, Q., & Lu, Y. (2018, May). Study of three-level SVPWM algorithm for 60° coordinate system. In 2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA) (pp. 2445-2449). IEEE.
[24] Deng, Q., & Ge, X. (2019, May). Unified SVPWM Strategy for Post-fault Three-level NPC Voltage Source Inverters. In 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019-ECCE Asia) (pp. 3090-3095). IEEE.
[25] Hu, H., Yao, W., & Lu, Z. (2007). Design and implementation of three-level space vector PWM IP core for FPGAs. IEEE Transactions on power electronics, 22(6), 2234-2244.
[26] Zhang, Z., Xie, Y. X., Le, J. Y., & Chen, L. (2009, November). Lyapunov-based control for single-phase three-level NPC AC/DC voltage-source converters. In 2009 International Conference on Electrical Machines and Systems (pp. 1-4). IEEE.

Sigma Mühendislik ve Fen Bilimleri Dergisi-Cover

ISSN: 1304-7191
Yayın Aralığı: Yılda 4 Sayı
Yayıncı: Yıldız Teknik Üniversitesi

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