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Differential Power Processing for Increased Energy Production and Reliability of Photovoltaic Systems
Abstract
Conventional energy conversion architectures in photovoltaic (PV) systems are often forced to tradeoff conversion efficiency and power production. This paper introduces an energy conversion approach that enables each PV element to operate at its maximum power point (MPP) while processing only a small fraction of the total power produced. This is accomplished by providing only the mismatch in the MPP current of a set of series-connected PV elements. Differential power processing increases overall conversion efficiency and overcomes the challenges associated with unmatched MPPs (due to partial shading, damage, manufacturing tolerances, etc.). Several differential power processing architectures are analyzed and compared with Monte Carlo simulations. Local control of the differential converters enables distributed protection and monitoring. Reliability analysis shows significantly increased overall system reliability. Simulation and experimental results are included to demonstrate the benefits of this approach at both the panel and subpanel level.
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Cited by
Forouzesh, M., Siwakoti, Y. P., Gorji, S. A., Blaabjerg, F., & Lehman, B. (2017) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2017.2652318 · Cited by 2,123
A Digital Twin Approach for Fault Diagnosis in Distributed Photovoltaic Systems
Jain, P., Poon, J., Singh, J. P., Spanos, C., Sanders, S. R., & Panda, S. K. (2020) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2019.2911594 · Cited by 462
Classification and Comparative Evaluation of PV Panel-Integrated DC–DC Converter Concepts
Kasper, M., Bortis, D., & Kolar, J. W. (2014) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2013.2273399 · Cited by 332
Hossain, M. Z., Rahim, N. A., & Selvaraj, J. A. (2018) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2017.07.017 · Cited by 305
Overview of Real-Time Lifetime Prediction and Extension for SiC Power Converters
Ni, Z., Lyu, X., Yadav, O. P., Singh, B. N., Zheng, S., & Cao, D. (2020) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2019.2962503 · Cited by 261
Metadata
- Authors
- Shenoy, P. S., Kim, K. A., Johnson, B. B., & Krein, P. T.
- Venue
- IEEE Transactions on Power Electronics
- Published
- 2013-06
- Volume
- 28
- Issue
- 6
- Pages
- 2968-2979
- ISSN
- 0885-8993 (ISSN-L)
- 1941-0107
- OpenAlex
- W2167603547
- Cited by
- 460
- References
- 0
- FWCI
- 13.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- Shenoy, P. S., Kim, K. A., Johnson, B. B., & Krein, P. T. (2013). Differential Power Processing for Increased Energy Production and Reliability of Photovoltaic Systems. IEEE Transactions on Power Electronics. https://doi.org/10.1109/tpel.2012.2211082
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