Distributed Secondary Control of DC Microgrids

This book presents a systematic and comprehensive treatment of distributed secondary control for DC microgrids, covering both fundamental principles and recent advances in the field. It addresses key theoretical and practical challenges, including voltage regulation, current sharing, communication constraints, multi-bus operation, and the destabilizing effects of constant power loads. A distinctive feature of the book is its emphasis on the concept of virtual voltage drop, which provides a unifying framework for system analysis and controller design. Building on this concept, the book develops rigorous and practically implementable control methods for both single-bus and multi-bus DC microgrids and further extends the framework to systems with high penetration of constant power loads, offering new insights into their stability and control. The theoretical developments are substantiated through detailed numerical simulations, experimental validation, and hardware-in-the-loop testing, thereby establishing a close connection between analytical results and practical implementation. Intended for researchers, graduate students, and practicing engineers in control systems, electrical engineering, and related disciplines, the book serves as both a comprehensive reference and a practical guide to state-of-the-art developments in distributed control of DC microgrids.