TESTER DESIGN FOR PHOTOVOLTAIC MODULES

Lyubomir Sekulov; Petko Kostadinov; Martina Tomcheva

Scientific paper ID 2533 : 2024/3

TESTER DESIGN FOR PHOTOVOLTAIC MODULES

Lyubomir Sekulov, Petko Kostadinov, Martina Tomcheva

Photovoltaic (PV) cells can be used in the same way as any other energy source. Each is designed to maintain a certain amount of current at a given voltage. In order to be clear which parameters need to be checked, the characteristics of the PV module must be known, as well as how to measure them. In order to obtain an accurate analysis, measurements are made in real time simultaneously under real operating conditions.

Based on the above, a PV module tester will be designed and built. It will be used to determine the basic performance of the PV modules - open collector voltage Voc, short-circuit current Isc and operating temperature of the panel surface. In this way the volt-ampere characteristic of each PV module can be taken. The advantage of using the tester is that it will be very easy to detect PV modules with parameters different from the factory ones in strings of long length. By using the tester it will be possible to determine the characteristics of each PV module tested.

A block diagram of a PV module measurement tester as well as a principle circuit with microprocessor control is shown in this paper. Due to limitations in presentation size, the microprocessor control software code and control algorithm is not shown.

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фотоволтаични панели соларни панели соларни модули фотоволтаични модули фотоволтаичен стринг МППТ зелена енергия ефективност на фотоволтаици електрически измервания тестерphotovoltaic panels solar panels solar modules photovoltaic modules pLyubomir Sekulov Petko Kostadinov Martina Tomcheva

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