https://scholars.lib.ntu.edu.tw/handle/123456789/393159
標題: | Analysis of the series-connected distributed maximum power point tracking PV system | 作者: | Chen, C.-W. Chen, Y.-M. YAOW-MING CHEN |
關鍵字: | Distributed maximum power point tracking (DMPPT); Four-switch buck-boost converter (FSBBC); Micro-converter; PV module; Small-signal ac model | 公開日期: | 2015 | 卷: | 2015-May | 期: | May | 起(迄)頁: | 3083-3088 | 來源出版物: | IEEE Applied Power Electronics Conference and Exposition - APEC | 摘要: | The output power of a string of photovoltaic (PV) panels reduce significantly under mismatching and shading effect. Therefore, in order to optimal the output power of the PV panels, the distributed maximum power point tracking (DMPPT) PV systems with the feature to perform maximum power point tracking (MPPT) function on each PV panel have been proposed. Among various circuit topologies, the scheme with seriesconnected converter output terminals has found a lot of attention due to its low rating devices and low voltage conversion ratio. It is well known that the cross-coupling effect introduced by the series-connected structure can be suppressed under closed-loop control. However, the small-signal ac model and compensator design of a PV module in a string have never been developed and analyzed in detail. Therefore, in this paper the small-signal ac model with the remaining PV modules in the string considered is derived to analyze the stability of the system. The derived mathematical equations are verified with computer simulations and a prototype system consists of two series-connected fourswitch buck-boost (FSBB) converters and a single phase grid-tied inverter. © 2015 IEEE. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84937845058&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/393159 |
DOI: | 10.1109/APEC.2015.7104791 | SDG/關鍵字: | Closed loop control systems; Maximum power point trackers; Photovoltaic cells; Photovoltaic effects; Power electronics; System stability; Four Switch Buck-Boost converters; Maximum Power Point Tracking; Micro-converter; PV modules; Small signal AC models; DC-DC converters |
顯示於: | 電機工程學系 |
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