Abstract
The usage of renewable energy for power generation plays a key role in power sector through reduces the noxious impacts of conventional fuels to generate power. Solar photovoltaic is a clean and emission-free renewable energy sources which is widely used for the power generation in the world. The solar photovoltaic array is made up of solar modules. These modules are act as an interfacing unit. The conversion process from sunlight to electricity is obtained through modules. But, the generation of power through involving the solar photovoltaic is dependent on variation of environments. The solar photovoltaic arrays have non-linear characteristics and depend on available solar insolation and operating temperature. A problem can be raised if these cells have not synchronized with each other. The variation of series resistance can cause the more absorption of current by the leakage current resistance. Due to this, a substantial reduction of current flows through the load circuit. So, the variation in shunt (parallel) resistance and series resistance can obtained a significant change in output characteristics. The data sheet provided by manufacturer of solar photovoltaic module contains current-voltage (I-V) and power-voltage (P-V) characteristics. The datasheet contains various parameters of solar module. But there are some parameters not provided in the datasheet by the manufacturer. This paper presents the effect of series resistance (Rs) and parallel resistance (Rp) on solar photovoltaic characteristics curves. The variation in characteristics curve (or maximum power output curve) well shown by the graphical representations.
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