Title :
Research on PV module structure based on fault detection
Author :
Liu, Yanli ; Li, Bingfeng ; Cheng, Ze
Author_Institution :
Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin, China
Abstract :
As to detecting the occurrence of Hot Spot, this paper presents a new type of photovoltaic (PV) arrays connection: CTCT structure (complex-total-cross-tied array). In the array of CTCT-type PV cells, by adding a certain number of current sensors and comparing the current, we can find the location of PV cells that have Hot Spot. This paper derives a formula to demonstrate the relationship between the total number of solar panels in parallel, the resolution and the total number of current sensors. We can detect the precise location of PV cells that have Hot Spot by using current sensors as few as possible.
Keywords :
fault diagnosis; photovoltaic cells; solar cells; PV module structure; complex-total-cross-tied array; current sensors; fault detection; hot spot; photovoltaic arrays connection; solar panel; Diodes; Electrical fault detection; Fault detection; Infrared imaging; Photovoltaic cells; Photovoltaic systems; Power generation; Sensor arrays; Solar power generation; Voltage; CTCT structure; Fault Detection; Hot Spot; PV Array;
Conference_Titel :
Control and Decision Conference (CCDC), 2010 Chinese
Conference_Location :
Xuzhou
Print_ISBN :
978-1-4244-5181-4
Electronic_ISBN :
978-1-4244-5182-1
DOI :
10.1109/CCDC.2010.5498470
