Two Level Control Strategy for Independent AC/DC Hybrid Microgrid Based on Integrated Control

Aiming at the independent AC/DC microgrid, a simple and effective multi time scale control strategy is proposed by adopting combination of day ahead scheduling real-time control. The takes minimum operation cost microgrid as goal, schedules controllable loads in with particle swarm optimization, which makes full use renewable energy. controls output distributed generation, load reduction switching diesel generator according to energy storage state charge (SOC), keep power balance microgrid. effectiveness two-level verified practical hybrid results show that method can make ensure economic reliable