A Fully Self-Synchronized Control for Hybrid Series-Parallel Electronized Power Networks

Abstract

The hybrid series-parallel system is the final form of the power electronics-enabled power system, which combines the advantages of both series and parallel connections. Although self-synchronization of parallel-type and series-type systems is well known, self-synchronization of hybrid systems remains unrevealed. To fill in this gap, a fully self-synchronized control for hybrid series-parallel system is proposed in this paper. Based on the self-synchronization mechanism of power angle in parallel-type system and power factor angle in series-type system, a decentralized control strategy by integration of power droop and power factor angle droop can realize self-synchronization and power balancing of each module in the hybrid system.