Hierarchical Structure Design and Primary Energy Dispatching Strategy of Grid Energy Router
M. F. Chen, M. C. Xia, Q. F. Chen

TL;DR
This paper introduces a hierarchical structure and a bi-level primary energy dispatching strategy for grid energy routers to enhance peer-to-peer energy sharing, improve energy buffer utilization, and stabilize power variations in renewable energy integration.
Contribution
It proposes a novel hierarchical structure for grid energy routers and a bi-level dispatching strategy to optimize energy buffer use and manage power fluctuations effectively.
Findings
Hierarchical structure facilitates peer-to-peer energy sharing.
Bi-level dispatching improves energy buffer utilization.
Simulation confirms effectiveness of the proposed methods.
Abstract
As a core device of energy Internet, the energy router is deployed to manage energy flow between the renewable energy and electric grid. In this paper, a hierarchical structure of grid energy router is proposed to greatly facilitate peer-to-peer energy sharing among energy routers. It can be placed at critical buses to make active distribution networks develop into multiple interconnected prosumer-based autonomous systems. To alleviate the mismatch between the medium-time dispatch and device-level control caused by the forecast error of distributed generation, a bi-level primary energy dispatching strategy is proposed to fully utilize the energy buffer of multiple grid energy routers. The power variation in short-time scale is well suppressed by sharing energy buffer in the upper-level control, and the energy buffer is further optimized to better absorb the variation. Combining measured…
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Taxonomy
TopicsMicrogrid Control and Optimization · Smart Grid Energy Management · Optimal Power Flow Distribution
