Integrated Nonlinear Hierarchical Control and Management of Hybrid AC/DC Microgrids

Increasing the usage of distributed generations (DGs) leads microgrids (MGs) to develop. Considering existence alternating current (ac) loads and sources concerning increasing direct (dc) sources, hybrid ac/dc MGs have been used advantages both ac dc reduce drawbacks them. By integrating DG units in MGs. Hence, a proper control method is required such achieve precise voltage regulation power-sharing, desired power quality, high efficiency, reliability. This article focused on nonlinear exponential secondary schemes properly MG form an integrated hierarchical management for Finally, evaluate proposed strategy's performance, offline digital time-domain simulation studies are carried out test system MATLAB/Simulink environment. The results also compared with previously reported methods. comparisons showed that methods could share among subgrids DGs subgrids. In contrast, scheme can prove its effectiveness superiority over conventional controllers.