Distributed sliding mode control strategy for microgrids based on finite time consistency

Microgrids are essential elements within the burgeoning energy Internet infrastructure. The synergy of communication networks and control systems facilitates the development of intricate microgrid management strategies; however, this integration also opens the door to various forms of interference. Moreover, inadequate primary control can lead to discrepancies between the actual frequency and voltage of the microgrid and their desired reference values, as well as imprecise distribution of active and reactive power. To tackle these challenges, an integral sliding mode-based quadratic control strategy is proposed. This tactic utilizes sparse communication with neighboring distributed power sources, thereby streamlining the complex communication network structure. It diminishes deviations caused by individual controls and counteracts the system's disturbance effects. Simultaneously, a finite-time consensus protocol is incorporated with the integral sliding mode control, which not only accelerates the convergence rate but also augments the overall convergence efficacy. The stability of the suggested control mechanism is substantiated through analytical proof, and its practicality is confirmed via simulation experiments.