Research on Voltage Disturbance Detection of PV System Based on Mathematical Morphological and Backward Difference

Abstract:

For the output of photovoltaic generation is of the characteristics of intermittent and uncertainties because of the changes of weather, the application of mathematical morphological and backward difference in voltage disturbance detection of the PV system. In order to overcome the defects caused by using fixed structural elements in general morphological filters, a form of adaptive weighted combination filter combined morphological open and closed operation is put forward. A more effective algorithm is designed by weight adding combination of morphological operation to get better effect. Three cases of examples such as voltage liter, voltage dips and voltage interruption are simulated through Matlab. The result shows the method can quickly and accurately extract the dynamic characteristics of power quality parameters of PV system.

• Periodical: Applied Mechanics and Materials (Volumes 365-366)
• Pages: 692-696
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.365-366.692
• Online since: August 2013
• Authors: Fan Yang, Li Ping Huang
• Keywords: Backward Difference, Mathematical Morphological, Pv System, Voltage Disturbance

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