A study on a two stage Maximum Power Point Tracking control of a photovoltaic system under partially shaded insolation conditions

被引：114

作者：

Kobayashi, K ^{[1
]}

Takano, I ^{[1
]}

Sawada, Y ^{[1
]}

机构：

[1] Kogakuin Univ, Tokyo 160, Japan

来源：

2003 IEEE POWER ENGINEERING SOCIETY GENERAL MEETING, VOLS 1-4, CONFERENCE PROCEEDINGS | 2003年

关键词：

photovoltaic system; two stage MPPT control; non-uniform insolation;

D O I：

10.1109/PES.2003.1271058

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A photovoltaic (PV) array shows relatively low output power density, and has a greatly drooping Current-Voltage (I--V) characteristic. Therefore, Maximum Power Point Tracking (MPPT) control is used to maximize the output power of the PV array. Many papers have been reported in relation to MPPT. However, the Current--Power (I--P) curve sometimes shows multi-local maximum points mode under non-uniform insolation conditions. The operating point of the PV system tends to converge to a local maximum output point which is not the real maximal output point on the I--P curve. Some papers have been also reported, trying to avoid this difficulty. However most of those control systems become rather complicated. Then, the two stage MPPT control method is proposed in this. paper to realize a relatively simple control system which can track the real maximum power point even under non-uniform insolation conditions. The feasibility of this control concept is confirmed for steady insolation as well as for rapidly changing insolation by simulation study using software PSIM and LabVIEW.

引用

页码：2612 / 2617

页数：6

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