Power Management Strategy of AC-DC Hybrid Microgrid in Island Mode

摘要

In order to solve the problem of power energy coordinated management , control and quality in the AC-DC interconnected Microgrid system, this paper proposes an AC-DC ω-V_dc^{2 droop control strategy applied to the energy router, and the approach is derived from conventional ω-P droop control scheme in AC Microgrid and the V_dc - P droop control scheme in the DC micro-grid. Combined with the square value of DC voltage and AC frequency characteristics to control the flow direction and magnitude of power, and it realize the bidirectional stable energy transmission of AC-DC Hybrid Microgrid, and ensure the energy balance of the Microgrid networks.}