Relation between Solar PV Power Generation, Inverter Rating and THD

The increasing threat of global warming call for the policy chances that increase the share of renewable energy-based generation including the integration of solar PV generation in the distribution networks. However, the distribution networks are designed and operated for centralised power generation and unidirectional power flow. The integration of solar PV systems leads to distributed power generation and bidirectional power flow, which results in operation challenges, such as power quality problems. These problems required to be quantified to develop appropriate solutions. Therefore, in this paper, a power quality auditing is conducted for a 50 kVA solar PV power plant and the resultant observations are presented in this paper. The study is conducted for two types of days, which are: (i) weekend day; (ii) weekday. The former type of day has relatively lower demand compared to the later type day. A number of observations are made and they are presented in this paper. Few important observations and conclusions are presented in this paper. The relation among the power generation, harmonics and inverters rating are observed and presented. Moreover, the quantification of voltage dips is also presented in this paper.</jats:p

Skin Lesion Detection Based on Fuzzy Logic

Melanoma is the maximal destructive type of skin disease. Occurrence ratios of melanoma seemed expanding, particularly with non-Hispanic white guys and females, however durability values are more whenever identified early. Requirement of cost as well as time for the imates to go for dermatologist for melanoma are restrictively exorbitant. Test in actualizing such a framework is finding the derma sore in the computerized picture. An arrangement of agent surface appropriations are found out from an enlightenment remedied photo and surface peculiarity metric is ascertained for every circulation. Melanoma represents around 75% of passings related with skin tumor. The fundamental objective of our work is to build up a structure that naturally right and section the skin injury from an information photo. This philosophy utilizes surface peculiarity injury division fluffy calculation to distinguish the injuries in the skin. The upside of this undertaking is early recognition of the sore to dodge skin tumor at later stages</jats:p