*6.1.3 Hybrid control*

This type is regarded as a combination of centralized and distributed control and is more versatile. Qi et al. [58] reviewed supervisory model predictive control (MPC) and developed it in distributed architecture taking two spatially distributed wind and PV subsystems each with storage, in a DC power grid, with a local load connected. For a WPVHPS with fuel cell, [59] a direct control scheme in a hybrid AC/DC structure is developed that deploys a harmonic virtual impedance loop and compensates voltage.
