Device for Express Registration of Power Quality of Renewable Sources

The proposed report is devoted to the research of the application of the indicator of non-linear distortions presence in radio electronic systems for express registration of power quality of renewable sources developed at DSTU Department of Radio electronics. Registration of power quality is carried out in analog mode. Information about the quality of energy is given in the form of a state diagram on the display screen. The advantage of the proposed device is its low cost and ease of implementation in various applications. The indicator has sufficient sensitivity to the appearance of harmonics. With the developed indicator it is possible not only to detect the presence of harmonics in the power supplied to the consumer, but also to conduct a qualitative analysis of the causes: harmonics are created by non-linear load or key elements of the inverter.