Title :
The dynamic characteristics of photovoltaic generation system under partially shaded conditions
Author :
Jinghong Zheng ; Yuan Chai ; Shouzhen Zhu ; Xinwei Shen ; Jinxia Li ; Xiaoyu Wang
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
This paper presents a simplified photovoltaic array model to describe the photovoltaic system features under partially shaded conditions. Based on the proposed model, the peak power sliding phenomenon of photovoltaic generation is studied during the above mentioned system dynamic process. The paper analyzes the mechanism of the peak power sliding and the critical sliding conditions. Simulation cases are provided to verify the theoretical analysis. The simulation results also show the difference of dynamic characteristics between shaded photovoltaic system and non-shaded photovoltaic system.
Keywords :
photovoltaic power systems; solar cell arrays; critical sliding conditions; dynamic characteristics; non-shaded photovoltaic system; partially shaded conditions; peak power sliding phenomenon; photovoltaic array model; photovoltaic generation system; system dynamic process; Arrays; Circuit faults; Mathematical model; Maximum power point trackers; Photovoltaic systems; Semiconductor diodes; Dynamic characteristics; partially shaded conditions; peak power sliding; photovoltaic array model; photovoltaic generation system;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2013 IEEE PES Asia-Pacific
Conference_Location :
Kowloon
DOI :
10.1109/APPEEC.2013.6837194
