Exploring Control Strategies for Flexible Interconnect Devices in High-Ratio Power Electronic Systems

Proposing a flexible interconnection device, based on a back-to-back converter (BTB- VSC), to address issues of unbalanced power distribution and poor power quality arising from numerous power electronic devices connected to the power grid. This solution facilitates power flow regulation between two AC systems, thereby improving the management of power quality. Introducing the topological structure, mathematical model, and control principles of the BTB- VSC, a MATLAB/Simulink simulation verification model is created to validate the effectiveness of the proposed control strategy. The simulation outcomes demonstrate that the related control approach adeptly manages active power transmission and reactive power compensation between the two AC systems. This results in elevated power quality, augmented reliability, and enhanced economic efficiency within the distribution network's operation.