Spatial Load Migration in a Power System: Concept, Potential and Prospects

As the transmission capability of power systems faces challenges from renewable generation and massive electricity usage, power load resources are playing an increasingly important role in power dispatch. Traditional load dispatch methods are mainly based on the dispatch of load behavior in the time dimension, which has the risk of decreasing the performance of the service provided. In this paper, based on research on space connection usage between power loads, we propose an original concept called spatial load migration (SLM), which provides solutions based on load redistribution and service retainment to address power transmission problems caused by network constraints. With respect to the SLM theme, this paper analyzes the potential of typical power load types participating in SLM, which are organized on a proposed dispatch architecture, and key decision dimensions. The characteristics and dispatch principles of each load type are provided in the form of mathematical models, which are summarized based on the relevant literature. The contribution of this paper is providing an original and practical perspective on power transmission problem solutions. SLM is expected to further improve the flexibility of power load dispatch, which is considered helpful to maintain the efficiency and safety of power systems