یک اینورتر نقطه‌ی خنثی پنج‌کلید و پنج‌سطحی با تعداد کلیدهای کم‌تر نسبت به ساختارهای متداول نقطه‌ی خنثی برای کاربردهای فوتوولتائیک

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد برق، دانشگاه علم و صنعت ایران

2 دانشیار دانشکده‌ مهندسی برق، دانشگاه علم و صنعت ایران

چکیده

امروزه اینورترهای چندسطحی به عنوان راه‌حلی مطلوب برای کاربردهایی با توان متوسط و زیاد مورد استفاده قرار می‌گیرند. یکی از معروف‌ترین ساختار اینورترهای چندسطحی ترکیبی، اینورتر مهارشده نقطه خنثی پنج‌سطحی است که ترکیبی از ویژگی‌های اینورتر نوع خازن شناور و نوع دیود مهارشده هستند که درکاربردهای صنعتی متداول بود. در این مقاله به منظور کاهش هرچه بیش‌تر کلیدهای فعال، ساختار مهارشده‌ی نقطه‌ی خنثی پنج‌سطحی و پنج‌کلیدی را پیشنهاد می‌دهد، به‌گونه‌ای که در ساختار پیشنهادی فقط پنج‌کلید فعال و چهار دیود به‌کارگرفته شده است و با ساختارهای متداول اینورتر پنج‌کلید پنج‌سطحی نقطه‌ی خنثی متداول مورد مقایسه گرفته است. یک نمونه‌ی شبیه‌سازی شده از اینورتر پیشنهادی با توان 4.5 کیلووات، به منظور بررسی صحت و انعطاف‌پذیری ساختار پیشنهادی و همچنین بررسی روش کنترلی اینورتر پیشنهادی، با نرم‌افزار PSpice شبیه سازی شده است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

A new Five level Five switch neutral point inverter for with lower number of power switches PV applications

نویسندگان [English]

  • AmirHosein Akbari 1
  • arezo khomami 1
  • adib abrishamifar 2
1 Iran University of Science and Technology, Faculty of Engineering
2 Associate professor of Iran University of Science and Technology, Faculty of Engineering
چکیده [English]

Multilevel inverters have great applications nowadays as one of preferred solutions for medium and high power applications. As one of the most popular hybrid multilevel inverter topologies, the five-level active-neutral-point-clamped inverter combines the features of the conventional flying-capacitor type and Neutral-Point-Clamped (NPC) type inverter and was commercially used for industrial applications. In order to further decrease the number of active switches, this paper proposes a five-level five-switch NPC topology, which employs only five active switches and four discrete diodes. The modulation strategy for five-level five-switch NPC inverter is discussed. A 4.5KVA single phase prototype is simulated using the PSPICE software to verify the validity and flexibility of the proposed topology and control method.

کلیدواژه‌ها [English]

  • Multilevel inverters
  • PWM modulation
  • Reactive power
  • PSPICE
  • Grid-connected
[1]    H. Wang, L. Kou, Y. F. Liu and P. C. Sen, "A New Six-Switch Five-Level Active Neutral Point Clamped Inverter for PV Applications," in IEEE Transactions on Power Electronics, vol. 32, no. 9, pp. 6700-6715, Sept. 2017.
[2]    M. Noroozi, A. Akbari, A. Abrishamifar, “A 5‐level modified full‐ bridge stand‐alone inverter with reduced number of switches”, in International Transaction in Electrical Energy Systems, June 2018.
[3]    R. Pena-Alzola, M. Liserre, F. Blaajberg, M. Ordonez, and Y. Yang,“Filter Design for Robust Active Damping in Grid-Connected Converters,” IEEE Transactions on Industrial Informatics, Vol. 10, No. 4, pp. 2192-2203, 2014.
[4]    M. S. Diab, A. A. Elserougi, A. M. Massoud, A. S. Abdel-Khalik and S. Ahmed, "A Pulsewidth Modulation Technique for High-Voltage Gain Operation of Three-Phase Z-Source Inverters," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 4, no. 2, pp. 521-533, June 2016..
[5]    M. Elsaharty, “Passive L and LCL filter design method for grid connected inverters” Proceedings of 2014 IEEE Innovative Smart Grid Technologies - Asia (ISGT ASIA), 2014.
[6]    J. Muhlethaler, J. Kolar, A. Ecklebe, “Loss modeling of inductive components employed in power electronic systems” Proceedings of 2011 ECCE Asia (ICPE 2011- ECCE Asia), 2011.
[7]    G. Buticchi, D. Barater, E. Lorenzani, C. Concari, and G. Franceschini, “A nine-level grid-connected converter topology for single-phase transformerless PV systems,” IEEE Trans. Ind. Electron., vol. 61, no. 8, pp. 3951–3960, Aug. 2014.
[8]    J. C. Wu and C. W. Chou, “A solar power generation system with a seven-level inverter,” IEEE Trans. Power Electron., vol. 29, no. 7, pp. 3454–3462, Jul. 2014.
[9]    Y. Wang, W. W. Shi, N. Xie and C. M. Wang, "Diode-Free T-Type Three-Level Neutral-Point-Clamped Inverter for Low-Voltage Renewable Energy System," in IEEE Transactions on Industrial Electronics, vol. 61, no. 11, pp. 6168-6174, Nov. 2014.
[10] M. Ghanes, M. Trabelsi, H. Abu-Rub and L. Ben-Brahim, "Robust Adaptive Observer-Based Model Predictive Control for Multilevel Flying Capacitors Inverter," in IEEE Transactions on Industrial Electronics, vol. 63, no. 12, pp. 7876-7886, Dec. 2016.
[11] Q. A. Le and D. C. Lee, "A Novel Six-Level Inverter Topology for Medium-Voltage Applications," in IEEE Transactions on Industrial Electronics, vol. 63, no. 11, pp. 7195-7203, Nov. 2016.
[12] R. Shalchi Alishah, D. Nazarpour, S. H. Hosseini and M. Sabahi, "New hybrid structure for multilevel inverter with fewer number of components for high-voltage levels," in IET Power Electronics, vol. 7, no. 1, pp. 96-104, January 2014.
[13] S. Papadopoulos, M. Rashed, C. Klumpner and P. Wheeler, "Investigations in the Modeling and Control of a Medium-Voltage Hybrid Inverter System That Uses a Low-Voltage/Low-Power Rated Auxiliary Current Source Inverter," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 4, no. 1, pp. 126-140, March 2016.
[14] P. H. Raj, A. I. Maswood, G. H. P. Ooi and Z. Lim, "Voltage balancing technique in a space vector modulated 5-level multiple-pole multilevel diode clamped inverter," in IET Power Electronics, vol. 8, no. 7, pp. 1263-1272, 7 2015.
[15] H. Wang, L. Kou, Y. F. Liu, P. C. Sen and S. Liu, "Seven-switch five-level active neutral-point clamped converter and optimal modulation strategy," 2016 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, 2016, pp. 2278-2285.
[16] T. B. Soeiro, R. Carballo, J. Moia, G. O. Garcia and M. L. Heldwein, "Three-phase five-level active-neutral-point-clamped converters for medium voltage applications," 2013 Brazilian Power Electronics Conference, Gramado, 2013, pp. 85-91.
[17] H. R. Teymour, D. Sutanto, K. M. Muttaqi and P. Ciufo, "A Novel Modulation Technique and a New Balancing Control Strategy for a Single-Phase Five-Level ANPC Converter," in IEEE Transactions on Industry Applications, vol. 51, no. 2, pp. 1215-1227, March-April 2015.
[18] H. Wang, L. Kou, Y. F. Liu and P. C. Sen, "A New Six-Switch Five-Level Active Neutral Point Clamped Inverter for PV Applications," in IEEE Transactions on Power Electronics, vol. 32, no. 9, pp. 6700-6715, Sept. 2017.
[19] G.Buticchi, E. Lorenzani, and G. Franceschini, “A five-level single-phase grid-connected converter for renewable distributed systems,” Ind. Electron. IEEE Trans., vol. 60, no. 3, pp. 906–918, 2013.
[20] Y. Zhang and L. Sun, “An efficient control strategy for a five-level inverter comprising flying-capacitor asymmetric H-bridge,” Ind. Electron. IEEE Trans., vol. 58, no. 9, pp. 4000–4009, 2011.
[21] X. Xing, Z. Zhang, C. Zhang, J. He and A. Chen, "Space Vector Modulation for Circulating Current Suppression Using Deadbeat Control Strategy in Parallel Three-Level Neutral-Clamped Inverters," in IEEE Transactions on Industrial Electronics, vol. 64, no. 2, pp. 977-987, Feb. 2017.