Regulation of Voltage and Reactive Power in AC Microgrid

The research is aimed at developing effective solutions for creating Microgrid and integrating them with external power systems. One of the important technological tasks in this case is the regulation of the voltage when the Microgrid is synchronized with the external power system and the parallel voltage operation mode is implemented with the difference in the levels of the desired voltages in the Microgrid network and the external power network. To solve the problem, it is proposed to use innovative patented devices- normalizers of alternating voltage NORMEL™ on Microgrid connections with the external electrical network. The paper presents the results of the analysis of the conditions and possibilities of voltage and reactive power regulation, modeling Microgrid modes exclusively of alternating current, both in terms of generation and the electrical network, including synchronous connections with the external power system. The results are based on the experience of creating such Microgrids based on cogeneration power plants with the capacity of up to 25 MW with gas reciprocating.