Maximum power point tracking control of photovoltaic generation system under non-uniform insolation by means of monitoring cells

2002 ◽  
Author(s):  
K. Irisawa ◽  
T. Saito ◽  
I. Takano ◽  
Y. Sawada
Keyword(s):  
Tracking Control ◽  
Maximum Power Point Tracking ◽  
Maximum Power ◽  
Generation System ◽  
Maximum Power Point ◽  
Photovoltaic Generation ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

A New Control Algorithm for Maximum Power Point Tracking of Photovoltaic Generation System

2011 ◽  
Vol 305 ◽  
pp. 230-234
Author(s):  
Xin Sheng He ◽  
Chun Fu Gao ◽  
Bin Wang ◽  
Zhi Yong Luo
Keyword(s):  
Output Power ◽  
Control Algorithm ◽  
Maximum Power Point Tracking ◽  
Maximum Power ◽  
Generation System ◽  
Maximum Power Point ◽  
Photovoltaic Generation ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

In order to maximize the power of photovoltaic generation system, it is necessary to track the maximum power point (MPP). A new control algorithm of photovoltaic (PV) was proprosed, which applied constant voltage tracking method (CVT) to adjust the working point around the MPP and ensure fast tracking when external conditions or loads changed suddenly. The algorithm used the optimal gradient method (OG) to make optimization of the steady-state characteristic and could effectively reduce the output power of photovoltaic array oscillation around maximum power point tracking (MPPT). The experiment and simulation results show that the proposed algorithm could track the MPP rapidly and accurately. And also could improve the energy conversion efficiency of PV generation system by reducing the output power oscillation around MPP.

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