A Generic Transient-Performance-Improved Framework for Privacy-Preserving Distributed Microgrid Controls

Existing studies about the privacy-preserving distributed (PP-Di) controls of islanded AC microgrid (MG) rely on adding the decaying disturbance into communications, such as correlated decaying noise and exponentially decaying disturbance. However, it will degrade transient performance of islanded AC MG, such as frequency and power overshoot. In this letter, a generic transient-performance-improved framework is proposed to coordinate these PP-Di controls for this problem. This framework only requires adding two first-order observer-based dynamics to adjust the control gain in transient process. Real-time simulation platform based on NI-PXI is built to validate its advantages.