This article analyzes the process of analyzing power quality indicators and voltage variations in distribution electrical networks. It is shown that using each consumer's daily load profile rather than their maximum power results in more accurate estimates. It is determined that photovoltaic systems connected to the central power grid via the distribution network are a source of harmonics, and proposals for their mitigation are developed. It is shown that the quality of the alternating current delivered by the inverter can be adjusted to meet international and national electrical power quality standards using filters, and the payback period for the costs incurred in the distribution network with nonlinear loads connected to photovoltaic has been calculated.
A. O. Suyarov* (Sun,) studied this question.