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Proceedings Paper

One-power IC with MPPT design
Author(s): Shengzhi Xu; Ian Chu; Gengshen Zhao; Qingzhang Wang
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Paper Abstract

When proceed photovoltaic power system design, engineer needs prepared model of PV cells to evaluate system response, capability performance, and stability, the DC model is not enough, but an accuracy AC model plays a big role. This paper talks first about the AC model of PV cells, and DC model is also introduced in simple. There is a PV controller example explaining the steps to do system simulation in this paper. Two equivalent circuit models are implemented with mixed-signal language verilog-a, one hardware language easy to use and having good speed and high accuracy. Both of two models include solar cell arrays, one buck switched mode DC-DC converter, and the maximum power point tracking algorithm. The difference between them is that Solar cell in one of two models is with ac small signal parameter, another is without. The simulation result is given in comparison. This paper's work shows that ac parameter plays large role in switch-mode PV power system, especially when the switch frequency is higher than 100kHz.

Paper Details

Date Published: 4 January 2008
PDF: 5 pages
Proc. SPIE 6841, Solid State Lighting and Solar Energy Technologies, 684113 (4 January 2008); doi: 10.1117/12.753920
Show Author Affiliations
Shengzhi Xu, Nankai Univ. (China)
Ian Chu, Innova Semiconductor (China)
Gengshen Zhao, Nankai Univ. (China)
Qingzhang Wang, Nankai Univ. (China)


Published in SPIE Proceedings Vol. 6841:
Solid State Lighting and Solar Energy Technologies
Jinmin Li; Ling Wu; Yubo Fan; Yong-Hang Zhang; Michael E. Coltrin; Yuwen Zhao; Nuofu Chen; Vladimir M. Andreev; Jai Singh, Editor(s)

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