Group maximum power tracking for distributed power source
Keywords:power converter, maximum power tracking
This paper offers a useful application of Uniform Input Voltage Distribution (UIVD) control for Distributed-Input Parallel-Output (DIPO) converter power systems. The primary control objective of UIVD for DIPO converters is to achieve grouped maximum power throughput from non-identical renewable power sources. Secondly, this paper features a revised Maximum Power Tracking (MPT) controller design developed for DIPO configurations that facilitate simultaneous processing of distributed power flows. In earlier research, the distributed source peak powers are individually tracked by converters controlled by independent MPT controllers without UIVD. However, when distributed power sources have similar peak power voltages with an achievable tracking efficiency of greater than 96%, such independent MPT controllers are not necessary. By utilizing UIVD control, near-maximum use of available power is achieved using a single MPT controller. The resulting system and control architectures offer near-maximum power transfer with a lower parts count. Two DIPO power converter bus architectures are described herein: one having a battery-dominated output voltage and the other with a regulated output voltage. Through computer simulation and prototype testing, both power architectures are validated for fault-tolerant grouped UIVD control.
Siri, S., & Conner, K. A. (2001). Fault-tolerant scaleable solar power bus Architectures with maximum power tracking. APEC 2001,1009-1014.
Siri, S., & Conner, K. A. (2002). Parallel connected converters with maximum power tracking. APEC2002, 419-425.
Siri, K., & Conner, K. A. (2003). Independently-sourced parallel-connected power systems with maximum power tracking. APEC2003, 533-539.
Siri, K. (1999). Shared-bus current sharing parallel-connected current-mode DC-DC converters. US Patent # 6,009,000.
Jordan, M. (1991-1996). UC3907 load share IC simplifies parallel power supply design. Unitrode Application Note U-129, 9-296 – 9-305.
Siri, K., Truong, C., & Conner K. A. (2005). Uniform voltage distribution control for paralleled-input, series-output connected converters. IEEE Proceedings of 2006 Aerospace Conference, Digital Object Identifier (DOI) : 10.1109/AERO.2005.1559580,http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1559580.
Siri, K., Willhoff, M. & Conner, K.A. (2006). Uniform voltage distribution control for series-input, parallel-output connected converters. IEEE Proceedings on 2006 Aerospace Conference, Digital Object Identifier (DOI): 10.1109/AERO.2006.1656001, http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1656001.
Siri, K., & Willhoff M. (2007). Current-sharing/voltage-distribution control for interconnected DC-DC converters. International Energy Conversion Engineering Conference and Exhibit, Digital Object Identifier (DOI): 10.2514/6.2007-4714, http://arc.aiaa.org/doi/abs/10.2514/6.2007-4714.
Siri, K., Willhoff, M., & Conner, K. A. (2007). Uniform voltage distribution control for series connected DC-DC converters. IEEE Trans. Power Electronics, 22(4), 1267-1279.
Siri, K., & Willhoff, M. (2011). Optimum power tracking among series-connected power sources with uniform voltage distribution. IEEE Aerospace Proceedings on Power Electronics for Space Applications, paper #1023, Digital Object Identifier (DOI): 10.1109/AERO.2011.5747463, http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5747463
Siri, K., & Willhoff, M. (2012). Optimum energy harvesting among distributed power sources with uniform voltage distribution. IEEE Aerospace Proceeding on Power Electronics for Space Applications, paper #1718, Digital Object Identifier (DOI): 10.1109/AERO.2012.6187246, http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6187246.
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