A Virtual Battery Model for Packetized Energy Management ∗
A Virtual Battery Model for Packetized Energy Management ∗
复制标题
用于分组能源管理的虚拟电池模型*
DOI:
10.1109/cdc42340.2020.9304065
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
M. Almassalkhi
中科院分区:
文献类型:
--
作者:
L. A. D. Espinosa;Adil Khurram;M. Almassalkhi
The goal of this paper is to develop a low-order model to represent the coordination of distributed energy resources based on concepts that make the internet work and is known as packetized energy management (PEM). The low-order model includes energy as a state variable together with dynamic opt-out constraints and internal packet request feedback, which in principle turns the model into a PEM virtual battery (PEM-VB) model. The paper focuses on a homogeneous aggregation of electric water heaters (EWHs) under PEM. It is shown that the bottom-up logic of the PEM-VB makes the system observable mainly due to the convenient feeding back of the number of packet requests through the communication channel established between the PEM coordinator and devices enrolled in the scheme. Without such extra information, the system loses the ability to observe the system’s stored energy state. A procedure for computing the maximum and minimum energy bounds for the PEM-VB is developed. Moreover, the PEM-VB is explicitly used as the underlying model for an extended Kalman filter observer formulation with the purpose of estimating the energy stored in a simulated ensemble of agent-based EWHs under PEM. The use of PEM-VB is demonstrated in pre-positioning of flexible resources depending upon load forecasts. Finally, conclusions and future directions are provided.
影响因子:
6.6
作者:
Espinosa, Luis A. Duffaut;Almassalkhi, Mads
通讯作者:
Almassalkhi, Mads