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Photovoltaic module is the key photo-electric conversion product in renewable energy field. To evaluate photovoltaic module electrical performance accurately, module performance ratio parameter is presented in this paper. On-site experiment for performance ratio is introduced and illustrated for performance ratio calculation and assessment of modules under natural outdoor condition. Compared with...
This paper describes the development of a multifunctional data acquisition system for photovoltaic (PV) plants. The proposed system consists of a set of data collection boxes for measuring electrical parameters (e.g. DC current, DC voltage, AC current, AC voltage, AC power, etc.), a meteorological data collection system for measuring meteorological parameters (e.g. irradiance, ambient air temperature,...
Electricity energy output for photovoltaic (PV) devices is commonly related to the nominal peak power of PV Grid connected system, which is obtained under standard test conditions. The accuracy of measured module peak power is sensitive and important to PV manufacturers, researchers and investors. In this paper, both flat plate and concentrator PV module measurement procedures and corresponding uncertainty...
In this paper, a frequency agile small smart antenna composed of a compact Electronically Steerable Passive Array Radiator (ESPAR) antenna is presented. The frequency agile range from 2.3GHz to 2.6GHz is examined in terms of return loss, antenna gain and radiation pattern. Proposed frequency agile smart antenna is electrically small in size. Tightly coupled top-disk loaded monopole and folded monopoles...
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