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Multilevel Inverter For Grid-Connected PV System Employing Digital PI Controller
Abstract
This paper presents a single-phase five-level photovoltaic (PV) inverter topology for grid-connected PV systems with a novel pulsewidth-modulated (PWM) control scheme. Two reference signals identical to each other with an offset equivalent to the amplitude of the triangular carrier signal were used to generate PWM signals for the switches. A digital proportional-integral current control algorithm is implemented in DSP TMS320F2812 to keep the current injected into the grid sinusoidal and to have high dynamic performance with rapidly changing atmospheric conditions. The inverter offers much less total harmonic distortion and can operate at near-unity power factor. The proposed system is verified through simulation and is implemented in a prototype, and the experimental results are compared with that with the conventional single-phase three-level grid-connected PWM inverter.
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Cited by
Review of Nonisolated High-Step-Up DC/DC Converters in Photovoltaic Grid-Connected Applications
Li, W., & He, X. (2011) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2010.2049715 · Cited by 1,423
Control for Grid-Connected and Intentional Islanding Operations of Distributed Power Generation
Balaguer, I. J., Lei, Q., Yang, S., Supatti, U., & Peng, F. Z. (2011) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2010.2049709 · Cited by 622
Single-Phase Seven-Level Grid-Connected Inverter for Photovoltaic System
Rahim, N. A., Chaniago, K., & Selvaraj, J. (2011) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2010.2064278 · Cited by 438
Self-citationChavarria, J., Biel, D., Guinjoan, F., Meza, C., & Negroni, J. J. (2013) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2012.2186108 · Cited by 391
Bana, P. R., Panda, K. P., Naayagi, R. T., Siano, P., & Panda, G. (2019) · IEEE Access · doi:10.1109/access.2019.2913447 · Cited by 361
Metadata
- Authors
- Selvaraj, J., & Rahim, N. A.
- Venue
- IEEE Transactions on Industrial Electronics
- Published
- 2009-01
- Volume
- 56
- Issue
- 1
- Pages
- 149-158
- ISSN
- 0278-0046 (ISSN-L)
- OpenAlex
- W2159503719
- Cited by
- 607
- References
- 0
- FWCI
- 28.78
- Type
- journal article
- Language
- en
- Open access
- closed
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