Microgrid load management and control strategies

Abstract

Load control and management is a key component of a microgrid. It is essential at all times to maintain the balance of generation vs. load. The microgrid control system needs to continuously evaluate and prioritize loads in order to maintain this balance. We examine methodologies for measuring, evaluating prioritizing and controlling loads under all conditions to maximize the performance of the microgrid. Strategies are presented for the classification of loads by criticality, identifying active vs. inactive loads and for maintaining near real time quantitative data for matching loads to generation. We discuss the need for active load control when in the microgrid is in grid paralleled operation, as well as when islanded. The need for high speed control operation is explained. The role of the load management system in control of generation dispatch is also discussed. The relationship between active load management and energy storage is also examined.