Scalable Harmonic Power Sharing of Converters via Adaptive Distributed Consensus Protocols in Complex Power Networks

This paper addresses the critical challenge of achieving accurate harmonic power sharing in complex power networks interconnected through converters. A novel distributed consensus protocol is proposed for the controller, enabling adaptive regulation of virtual impedance at harmonic frequencies. To reduce computational complexity, a simplified formulation of harmonic apparent power is introduced. The proposed strategy ensures proportional sharing of harmonic power among converters, thereby achieving equitable improvement in power quality across all nodes. Notably, this approach enhances the flexibility of microgrid cluster systems without requiring prior knowledge of line impedance, making it highly practical for real-world applications. The effectiveness and robustness of the proposed method are rigorously validated through MTLAB/Simulink software, demonstrating its potential for implementation in large-scale distributed systems such as super-computing facilities.