MPPT for grid-connected photovoltaic systems using ripple-based Extremum Seeking Control: Analysis and control design issues

被引：26
|
作者：
Munteanu, Iulian [1 ]
Bratcu, Antoneta Iuliana [1 ]
机构：
[1] Grenoble Image Speech Signal Control Syst Lab GIP, F-38402 St Martin Dheres, France
来源：
SOLAR ENERGY | 2015年 / 111卷
关键词：
Photovoltaic systems; Inverter control; Maximum power point tracking (MPPT); Extremum Seeking Control; Ripple correlation control; POWER POINT TRACKING; OPTIMIZATION; INVERTER; PERFORMANCE; CONVERTER; ALGORITHM; UNIFORM;
D O I：
10.1016/j.solener.2014.10.027
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：
This paper deals with an Extremum Seeking Control MPPT algorithm for grid-connected PV systems without intermediary DC-DC converter stage. The method uses the DC-link voltage ripple as dithering signal, which "naturally" results from the grid inverter operation. A thorough analysis emphasizes the significant variation of system behaviour with the irradiance. Relevant control design guidelines and necessity of an adaptive control approach for fast-changing irradiance tracking emerge from this analysis. MATLAB (R)/Simulink (R) numerical simulations are presented in order to illustrate the closed-loop dynamic performance under various scenarios, which also allows for assessing advantages and limitations of the proposed method. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：30 / 42
页数：13
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