Author:
Sathik M. Jagabar,Almakhles Dhafer J.,Sandeep N.,Siddique Marif Daula
Abstract
AbstractMultilevel inverters play an important role in extracting the power from renewable energy resources and delivering the output voltage with high quality to the load. This paper proposes a new single-stage switched capacitor nine-level inverter, which comprises an improved T-type inverter, auxiliary switch, and switched cell unit. The proposed topology effectively reduces the DC-link capacitor voltage and exhibits superior performance over recently switched-capacitor inverter topologies in terms of the number of power components and blocking voltage of the switches. A level-shifted multilevel pulse width modulation scheme with a modified triangular carrier wave is implemented to produce a high-quality stepped output voltage waveform with low switching frequency. The proposed nine-level inverter’s effectiveness, driven by the recommended modulation technique, is experimentally verified under varying load conditions. The power loss and efficiency for the proposed nine-level inverter are thoroughly discussed with different loads.
Funder
Renewable Energy Lab, College of Engineering
Publisher
Springer Science and Business Media LLC
Reference17 articles.
1. Franquelo, L. G. et al. The age of multilevel converters arrives. IEEE Trans. Ind. Electron. Mag. 2(2), 28–39 (2008).
2. Pakdel, M. & Jalilzadeh, S. A new family of multilevel grid connected inverters based on packed U cell topology. Sci. Rep. 7, 12396 (2017).
3. Xu, S. et al. Fault-tolerant control of ANPC three-level inverter based on order-reduction optimal control strategy under multi-device open-circuit fault. Sci. Rep. 7, 14447 (2017).
4. Sathik, M. J., Bhatnagar, K., Sandeep, N. & Blaabjerg, F. An improved seven-level PUC inverter topology with voltage boosting. IEEE Trans. Circuits Syst. II Express Brief 67(1), 127–131 (2020).
5. Jagabar-Sathik, M. & Vijayakumar, K. An assessment of recent multilevel inverter topologies with reduced power electronics components for renewable applications. Renew. Sustain. Energy Rev. 82(3), 3379–3399 (2018).
Cited by
38 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献