Island ac microgrid distributed flexible quadratic control method and device
By constructing a distributed physical model and dynamic event triggering mechanism for isolated AC microgrids, and combining it with an anti-attack adaptive update law, the problems of voltage and frequency recovery and active power sharing in isolated AC microgrids under attack and bandwidth-limited conditions are solved, thus achieving system stability and efficient communication.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to simultaneously achieve voltage recovery, frequency recovery, and precise proportional sharing of active power in isolated AC microgrids under conditions of attack and bandwidth constraints.
A physical model of an islanded AC microgrid, including a communication network and multiple distributed generation units, is constructed. Based on a droop control model with reference voltage and frequency, a dynamic event triggering mechanism and an anti-attack adaptive update law are introduced. A distributed secondary controller is designed to achieve asymptotic recovery of voltage and frequency and proportional sharing of active power.
Without requiring global information, it improves the microgrid's resistance to attacks and the utilization rate of communication resources, ensures the stable operation of the system during periods of severe communication disruption, and enables rapid recovery of voltage and frequency as well as accurate sharing of active power.
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