FLEXIBLE CONTROL ARCHITECTURE FOR MICROGRID RESILIENCY

摘要

A flexible control architecture for an electrical power microgrid provides resiliency when operating under varying threat levels. The architecture includes a microgrid control layer, an intermediate layer and a component control layer. A contingency level is computed based on conditions of the microgrid such as weather and system state. When the contingency level indicates a low degree of threat, the system operates in a centralized, top-down control configuration. When the contingency level indicates a high degree of threat, the system operates in a decentralized control configuration with the microgrid control layer performing only a monitoring function.

主权项

1. A control system for controlling an electrical power microgrid including loads and distributed energy resources, the control system comprising:
a component control layer including component control devices connected directly to the loads and distributed energy resources; a middle level control layer including aggregating control devices, each aggregating control device being connected to a respective plurality of the component control devices; a microgrid control layer including one or more microgrid control devices connected to the aggregating control devices and further comprising a contingency metric computation module for computing a contingency metric indicating a level of operational threat based on characteristics of the electrical power microgrid and its environment; the control system being configured to operate in a centralized mode when the contingency metric indicates substantially no operational threat, wherein instructions and set points for the loads and distributed energy resources are transmitted from the microgrid control layer to the middle level control layer and the component control layer; and the control system being further configured to operate in a decentralized mode when the contingency metric indicates a high operational threat, including operating the component control layer without receiving instructions and set points from the middle level control layer or the microgrid control layer.