Utility-based operation management for low voltage distribution grids using online optimization

We present an operation management controller for low voltage (LV) grids that coordinates a multitude of distributed energy resources (DER) in real time to maximize the utilization of renewable energy production. It utilizes an LTE radio network that connects the DERs to the distribution system operator. In our approach, utility functions are assigned to the DERs, and the utility maximization is formulated as an optimization problem. The optimization problem is solved by an iterative algorithm that performs incremental updates of the DER power set values to achieve the optimum. In order to take the state of the grid in the optimization process into account, the state of the grid is estimated. During the simulation of a use case, we demonstrate the applicability and identify the benefits of our approach compared to an established optimal power flow (OPF) method. Particular emphasis is put on evaluating the communication delay and feasibility of the required communication network, as the iterative approach leads to a high communication load.

Subjects

450 MHz LTE

distributed energy resources

optimal power flow

smart grid

DDC Class

600: Technik

620: Ingenieurwissenschaften

Funding(s)

Optimale Nutzung Regenerativer Energien in Niederspannungsverteilnetzen

Projekt DEAL

Funding Organisations

Deutsche Forschungsgemeinschaft (DFG)

More Funding Information

This work has been funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under project number 426655646.

Publication version

publishedVersion

Lizenz

https://creativecommons.org/licenses/by/4.0/

Name

Ipach2021_Article_Utility-basedOperationManageme.pdf

Size

1.55 MB

Format

Adobe PDF

Options

Utility-based operation management for low voltage distribution grids using online optimization